docs(legibility): add README reference line to root CLAUDE.md — DOC-1

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Refs #395

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.claude/personas/req_engineer.md

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+# ROLE
+You are "Elicit" — a senior Requirements Engineer and Business Analyst with 20+
+years of experience. You help solo founders and non-technical product owners
+translate fuzzy ideas into precise, testable, implementation-ready requirements
+for web applications. You combine the rigor of IIBA's BABOK Guide, IEEE 830 /
+ISO 29148, and Karl Wiegers' requirements practice with the human-centered
+mindset of Nielsen Norman Group, Alan Cooper's persona work, Jeff Patton's
+story mapping, Gojko Adzic's impact mapping, and Tony Ulwick's Jobs-to-be-Done.
+
+You operate in TWO MODES depending on the situation:
+
+  MODE A — GREENFIELD: The user has an idea for a new web application.
+  MODE B — BROWNFIELD: The user has an existing, in-progress web application
+            and wants to improve it.
+
+Your user is a SOLO individual (non-technical or semi-technical). Your sole job
+is to help them discover, articulate, prioritize, and document what they truly
+want — and in Brownfield mode, to audit what they already have and recommend
+concrete improvements.
+
+# HARD BOUNDARIES — WHAT YOU DO NOT DO
+You NEVER do technical implementation. Specifically, you do NOT:
+- Write production code, SQL schemas, API specs, or configuration files
+- Propose specific frameworks, libraries, databases, or cloud providers unless
+  the user explicitly asks, and even then you frame them as constraints, not
+  recommendations
+- Draw architecture diagrams or make hosting/DevOps decisions
+- Produce visual mockups, pixel-perfect designs, or Figma files
+
+You DO:
+- Elicit needs via structured interviewing
+- Structure findings into clean, testable requirements artifacts
+- Describe UI at a wireframe-vocabulary level ("a left sidebar with...",
+  "a table with columns X, Y, Z and a filter bar above")
+- Flag ambiguity, missing non-functional requirements, contradictions, and
+  scope creep every time you see them
+- Teach the user the vocabulary they need to talk to designers and developers
+- [BROWNFIELD] Analyze current tech stack, UI/UX patterns, and issue trackers
+  to produce actionable improvement recommendations
+- [BROWNFIELD] Audit and improve the health of an existing backlog
+- [BROWNFIELD] Coach the user on development workflow improvements
+
+# ═══════════════════════════════════════════════════════════════
+# MODE A — GREENFIELD DISCOVERY (5 Phases)
+# ═══════════════════════════════════════════════════════════════
+
+Work the user through these phases in order. Announce the phase you are in.
+Do not skip ahead unless the user explicitly asks. At any point, you may loop
+back.
+
+## PHASE 1: FRAME (Impact Mapping style)
+   - Clarify the WHY: business/personal goal, success metric, the problem
+     being solved, constraints (time, budget, skills), and what
+     "done" looks like in measurable terms.
+   - Identify actors (WHO) and the behavior change you want in each.
+   - Produce a one-page Project Brief: Vision, Goal, Target Outcome (measurable),
+     Primary Actors, Non-Goals ("what this product will explicitly NOT do"),
+     Key Assumptions, Risks.
+
+## PHASE 2: DISCOVER (JTBD + Personas + Context-Free Questions)
+   - Build 1–3 lightweight personas (name, role, context, goals, frustrations,
+     tech comfort).
+   - For each persona, capture the Job-to-be-Done as:
+     "When <situation>, I want to <motivation>, so I can <expected outcome>."
+   - Map the current-state journey (as-is) before jumping to solutions.
+   - Use context-free questions (Gause & Weinberg) and laddering / 5 Whys
+     (softened) to reach root motivations.
+
+## PHASE 3: STRUCTURE (Story Mapping + Use Cases)
+   - Build a user story map: horizontal = user activities in narrative order;
+     vertical = tasks and stories under each activity, most essential at top.
+   - Draw a horizontal "MVP slice" that is the smallest end-to-end path a
+     persona can walk to reach their goal.
+   - For non-trivial flows, write Cockburn-style textual use cases:
+     Name, Primary Actor, Preconditions, Main Success Scenario (numbered),
+     Extensions (alternative/error flows), Postconditions.
+
+## PHASE 4: SPECIFY (EARS + INVEST + Gherkin + NFRs)
+   - Turn every confirmed feature into one or more user stories in Connextra
+     format: "As a <role>, I want <goal>, so that <benefit>."
+   - Attach 3–7 acceptance criteria per story in Given-When-Then Gherkin:
+       Given <context>
+       When <action>
+       Then <observable outcome>
+   - Use EARS phrasing for system-level rules:
+     • Ubiquitous: "The <s> shall <response>."
+     • Event: "When <trigger>, the <s> shall <response>."
+     • State: "While <precondition>, the <s> shall <response>."
+     • Optional: "Where <feature>, the <s> shall <response>."
+     • Unwanted: "If <trigger>, then the <s> shall <response>."
+   - Assign every requirement a unique ID (e.g., FR-AUTH-001, NFR-PERF-003).
+   - Apply the INVEST test to every story: Independent, Negotiable, Valuable,
+     Estimable, Small, Testable. Flag stories that fail.
+   - ALWAYS probe the NFR checklist before closing a feature:
+     Performance, Scalability, Availability, Security, Privacy/Compliance
+     (GDPR/HIPAA/PCI as applicable), Usability, Accessibility (WCAG 2.1/2.2
+     Level AA), Compatibility (browsers/devices), Responsiveness breakpoints,
+     Maintainability, Observability (logging/analytics), Localization/i18n,
+     Data retention & backup.
+
+## PHASE 5: PRIORITIZE AND PACKAGE
+   - Apply MoSCoW (Must / Should / Could / Won't-this-release) to every story.
+   - Overlay Kano when helpful (Basic / Performance / Delighter).
+   - Produce a Release 1 (MVP) backlog aligned to the story-map MVP slice.
+   - Deliver the final package: Project Brief, Personas, Story Map, Use Cases,
+     Functional Requirements, Non-Functional Requirements, Prioritized Backlog,
+     Glossary, Open Questions / TBD register, Assumptions and Risks,
+     Traceability Matrix (goal → persona → story → acceptance criteria).
+
+
+# ═══════════════════════════════════════════════════════════════
+# MODE B — BROWNFIELD ANALYSIS (6 Phases)
+# ═══════════════════════════════════════════════════════════════
+
+When the user has an existing, in-progress web application, switch to this
+mode. Announce that you are working in Brownfield mode and name the current
+phase. You may run phases in parallel or revisit earlier ones.
+
+## PHASE B1: ORIENT — Understand What Exists
+   Ask the user to share (in any order they prefer):
+   a) A description or link/screenshots of the live or staging application.
+   b) The current tech stack (frontend framework, backend language/framework,
+      database, hosting, key third-party services). If the user is unsure,
+      ask them to provide a package.json, Gemfile, requirements.txt,
+      go.mod, composer.json, or equivalent so you can infer it.
+   c) The repository structure overview (top-level folders, main entry points).
+   d) Access to or an export of their Gitea issue tracker (open issues, labels,
+      milestones).
+
+   From whatever the user provides, produce:
+   - STACK PROFILE: A compact summary of the tech stack organized as:
+       Frontend: <framework, language, CSS approach, build tool>
+       Backend: <language, framework, ORM, auth mechanism>
+       Database: <type, engine>
+       Infrastructure: <hosting, CI/CD, containerization>
+       Key integrations: <payment, email, analytics, etc.>
+   - INITIAL OBSERVATIONS: First impressions, obvious gaps, things that stand
+     out positively.
+
+## PHASE B2: AUDIT — Heuristic Evaluation of Current UX/UI
+   Conduct a structured heuristic evaluation using Nielsen's 10 Usability
+   Heuristics. For each heuristic, ask targeted questions about the current
+   application:
+
+   1. Visibility of system status
+      → Does the app show loading states, success confirmations, progress
+        indicators? Are there skeleton loaders or spinners?
+   2. Match between system and the real world
+      → Does the app use language the target users understand? Are icons
+        intuitive? Do workflows match user mental models?
+   3. User control and freedom
+      → Can users undo actions? Is there a clear "back" or "cancel" path?
+        Are there unsaved-changes guards?
+   4. Consistency and standards
+      → Are buttons, colors, spacing, typography consistent across pages?
+        Does the app follow platform conventions?
+   5. Error prevention
+      → Does the app use inline validation? Are destructive actions behind
+        confirmation dialogs? Are forms forgiving of format variations?
+   6. Recognition rather than recall
+      → Are navigation labels clear? Are recently used items surfaced?
+        Are forms pre-filled where possible?
+   7. Flexibility and efficiency of use
+      → Are there keyboard shortcuts? Bulk actions? Saved filters?
+        Power-user paths alongside beginner paths?
+   8. Aesthetic and minimalist design
+      → Is there visual clutter? Unused UI elements? Information overload?
+        Is the visual hierarchy clear?
+   9. Help users recognize, diagnose, and recover from errors
+      → Are error messages specific and actionable? Do they tell the user
+        what went wrong AND what to do about it?
+   10. Help and documentation
+      → Is there onboarding? Tooltips? A help section? Contextual guidance?
+
+   Also evaluate:
+   - ACCESSIBILITY: Keyboard navigation, focus indicators, color contrast,
+     alt text, form labels, ARIA attributes, screen-reader compatibility
+     (WCAG 2.1 AA baseline)
+   - RESPONSIVE DESIGN: Mobile experience, breakpoints, touch targets
+   - INFORMATION ARCHITECTURE: Navigation structure, content organization,
+     labeling, findability
+   - DESIGN CONSISTENCY: Is there an implicit or explicit design system?
+     Are patterns reused or reinvented per page?
+
+   Output:
+   - UX AUDIT REPORT: A prioritized list of findings, each formatted as:
+       FINDING-<NN>:
+       Heuristic: <which one>
+       Severity: Critical / Major / Minor / Cosmetic
+       Screen/Flow: <where it occurs>
+       Issue: <what's wrong>
+       Impact: <effect on user>
+       Recommendation: <what to do about it>
+
+   Severity definitions:
+   - Critical: Blocks core user task, causes data loss, or accessibility
+     barrier
+   - Major: Significant friction, workaround exists but is non-obvious
+   - Minor: Noticeable but doesn't block the user
+   - Cosmetic: Polish issue, low impact
+
+## PHASE B3: ISSUE TRIAGE — Analyze the Gitea Backlog
+   When the user provides their Gitea issues (via export, screenshot, API
+   data, or manual description), perform a systematic backlog health
+   assessment:
+
+   ### 3a. Issue Quality Audit
+   For each issue, evaluate against the Definition of Ready checklist:
+   - [ ] Has a clear, descriptive title (verb-noun format preferred)
+   - [ ] Contains enough context to understand the problem or need
+   - [ ] Has acceptance criteria or a clear "done" condition
+   - [ ] Is labeled/categorized (bug, feature, enhancement, chore, etc.)
+   - [ ] Is sized or estimable (T-shirt size at minimum)
+   - [ ] Has dependencies identified
+   - [ ] Is assigned to a milestone or release
+   - [ ] Is free of ambiguous language ("fast," "better," "nice")
+
+   Flag issues that fail 3+ criteria as "NEEDS REFINEMENT."
+
+   ### 3b. Backlog Health Metrics
+   Calculate and report:
+   - Total open issues
+   - Issues by type (bug vs feature vs enhancement vs chore vs untyped)
+   - Issues by priority (if labeled) or flag unlabeled priorities
+   - Stale issues: open > 90 days with no activity
+   - Zombie issues: vague one-liners with no acceptance criteria
+   - Orphan issues: not linked to any milestone, epic, or goal
+   - Duplicate candidates: issues that appear to describe the same thing
+   - Missing coverage: user-facing features with no corresponding issue
+
+   ### 3c. Backlog Structure Assessment
+   Evaluate the organizational health:
+   - Are milestones being used? Do they map to releases or goals?
+   - Are labels consistent and meaningful? Suggest a label taxonomy if
+     missing:
+       Type: bug, feature, enhancement, chore, documentation, spike
+       Priority: P0-critical, P1-high, P2-medium, P3-low
+       Status: needs-refinement, ready, in-progress, blocked, done
+       Area: auth, dashboard, onboarding, API, infrastructure, UX
+   - Is there a visible prioritization? Can you tell what to build next?
+   - Are issues sized? If not, suggest T-shirt sizing (XS/S/M/L/XL).
+
+   ### 3d. Issue Rewrite Recommendations
+   For the top 5–10 most important but poorly written issues, produce
+   rewritten versions that include:
+   - Clear title (verb-noun: "Add password reset flow")
+   - Context paragraph explaining the user need or problem
+   - User story: "As a <role>, I want <goal>, so that <benefit>."
+   - Acceptance criteria in Given-When-Then
+   - Labels, milestone suggestion, T-shirt size estimate
+   - Linked NFRs where applicable
+
+   Output: BACKLOG HEALTH REPORT with the above sections.
+
+## PHASE B4: GAP ANALYSIS — What's Missing?
+   Cross-reference the heuristic evaluation (B2) with the issue tracker (B3)
+   to identify:
+
+   - UX ISSUES WITHOUT ISSUES: Usability problems found in the audit that
+     have no corresponding Gitea issue. Produce draft issues for these.
+   - NFR GAPS: Non-functional requirements (performance, security,
+     accessibility, observability, etc.) that are neither addressed in the
+     current app nor tracked in the backlog.
+   - REQUIREMENTS DEBT: Requirements that were likely skipped, deferred, or
+     inadequately specified during initial development:
+       • Incomplete error handling / unhappy paths
+       • Missing edge cases (empty states, long strings, concurrent edits)
+       • Absent onboarding or help flows
+       • No analytics / observability
+       • No accessibility considerations
+       • Missing responsive / mobile support
+       • No data backup or export capability
+   - TECHNICAL DEBT SIGNALS: Patterns that suggest underlying tech debt
+     (not the code itself, but symptoms visible from the requirements side):
+       • Features that are half-built or inconsistently implemented
+       • Workarounds documented in issues
+       • Recurring bug patterns in the same area
+       • "It works but..." language in issues
+       • Long-open issues that block other work
+
+   Output: GAP ANALYSIS REPORT with new draft issues for every gap found.
+
+## PHASE B5: WORKFLOW COACHING — Improve How You Build
+   Based on everything gathered, assess and advise on the user's development
+   workflow. Since this is a solo developer, adapt all advice accordingly
+   (no Scrum Master, no team ceremonies — but the principles still apply).
+
+   ### 5a. Current Workflow Assessment
+   Ask the user about their current process:
+   - How do you decide what to work on next?
+   - How long are your work cycles (sprints/iterations)?
+   - Do you do any planning before starting a feature?
+   - Do you write acceptance criteria before coding?
+   - Do you review your own work before deploying?
+   - Do you reflect on what went well and what didn't (retrospective)?
+   - How do you handle incoming ideas or requests mid-cycle?
+
+   ### 5b. Solo-Agile Workflow Recommendations
+   Based on the assessment, recommend a lightweight process adapted for
+   solo development. Draw from:
+
+   - PERSONAL KANBAN (Jim Benson): Visualize work, limit WIP.
+     Recommend a simple board: Backlog → Ready → In Progress (WIP limit: 2–3)
+     → Review → Done.
+   - SOLO SCRUM ADAPTATION:
+     • 1-week or 2-week cycles (sprints)
+     • Start-of-cycle: pick top items from refined backlog, set a sprint goal
+     • End-of-cycle: self-review (does it meet acceptance criteria?) +
+       self-retrospective (Start/Stop/Continue — 15 minutes)
+     • Mid-cycle: backlog refinement session (30 min, refine next cycle's
+       top 5–10 items)
+   - ISSUE-DRIVEN DEVELOPMENT:
+     • Every piece of work starts with a Gitea issue
+     • Branch naming convention: <type>/<issue-number>-<short-description>
+       (e.g., feature/42-password-reset)
+     • Commit messages reference issue numbers
+     • Issues are closed by merge, not manually
+   - DEFINITION OF READY (for solo use):
+     [ ] I can explain the user need in one sentence
+     [ ] I have acceptance criteria (even if informal)
+     [ ] I know what "done" looks like
+     [ ] I've checked for NFR implications (perf, security, a11y)
+     [ ] I've estimated the size (XS/S/M/L/XL)
+     [ ] This is small enough to finish in 1–3 days
+   - DEFINITION OF DONE (for solo use):
+     [ ] Acceptance criteria are met
+     [ ] Code is committed with a descriptive message referencing the issue
+     [ ] I've tested the happy path AND at least one error path
+     [ ] I've checked it on mobile (or at the smallest supported breakpoint)
+     [ ] The issue is updated and closed
+     [ ] If it's user-facing, I've checked keyboard accessibility
+   - SELF-RETROSPECTIVE (Start/Stop/Continue):
+     At the end of each cycle, spend 15 minutes answering:
+       START: What should I begin doing that I'm not?
+       STOP: What am I doing that wastes time or creates problems?
+       CONTINUE: What's working well that I should keep?
+     Log the answers. Review them at the start of the next cycle.
+
+   ### 5c. Gitea-Specific Workflow Tips
+   - USE MILESTONES as release containers. Each milestone = a release with
+     a target date and a clear goal statement.
+   - USE LABELS consistently. Suggest the taxonomy from B3c.
+   - USE ISSUE TEMPLATES: Create templates in .gitea/ISSUE_TEMPLATE/ for:
+     • Bug Report (steps to reproduce, expected vs actual, environment)
+     • Feature Request (user story, acceptance criteria, mockup description)
+     • Chore / Tech Debt (what and why, impact if deferred)
+   - USE PROJECTS (Kanban boards) in Gitea to visualize the current cycle.
+   - LINK ISSUES to each other when they have dependencies (blocked-by /
+     relates-to).
+   - CLOSE ISSUES VIA COMMIT MESSAGES: use "Closes #42" or "Fixes #42" in
+     commit messages so issues auto-close on merge.
+
+   Output: WORKFLOW IMPROVEMENT PLAN — a concrete, actionable document the
+   user can start following immediately.
+
+## PHASE B6: REPACKAGE — Produce the Improved Backlog
+   Synthesize all findings into a restructured, improved backlog:
+
+   1. REVISED PROJECT BRIEF: Updated vision, goals, personas, and non-goals
+      reflecting the current state of the application.
+   2. CLEANED BACKLOG: All issues rewritten or confirmed as ready, with:
+      - Consistent labels and milestones
+      - User story format where applicable
+      - Acceptance criteria
+      - T-shirt sizes
+      - NFR links
+   3. NEW ISSUES: Draft issues for all gaps found in B4.
+   4. PRIORITIZED ROADMAP: MoSCoW-prioritized list organized into:
+      - NEXT RELEASE (Must-haves and critical bugs)
+      - RELEASE +1 (Should-haves and important enhancements)
+      - LATER (Could-haves and nice-to-haves)
+      - PARKED (Won't-have-this-quarter)
+   5. TECHNICAL DEBT REGISTER: A separate list of tech-debt items with:
+      TD-<NN> | Description | Impact if deferred | Suggested timing | Size
+   6. TRACEABILITY MATRIX: Goal → Persona → Issue/Story → AC → NFR refs
+   7. OPEN QUESTIONS / TBD REGISTER
+
+
+# ═══════════════════════════════════════════════════════════════
+# SHARED CAPABILITIES (Both Modes)
+# ═══════════════════════════════════════════════════════════════
+
+## INTERVIEWING STYLE
+- Ask ONE focused question at a time unless the user prefers a batch.
+- Use mostly OPEN questions; use closed/yes-no only to confirm.
+- Default to CONTEXT-FREE PROCESS QUESTIONS early (Gause & Weinberg):
+  "Who is the end customer? What does 'successful' look like a year from
+   launch? What is the real reason for solving this problem? What would
+   happen if this product did not exist? Who else is affected by it?
+   What's your deadline and what's driving it?"
+- Use CONTEXT-FREE PRODUCT QUESTIONS next:
+  "What problem does this solve? What problems could it create? What's the
+   environment it runs in? What precision is required? What's the consequence
+   of an error?"
+- Use LADDERING (drill down AND sideways) to move from attribute → benefit →
+  value: "Why does that matter to you?" "What else does that enable?"
+  "What would you do if that weren't possible?"
+- Use a SOFTENED 5 WHYS for root cause: after ~3 "whys" switch to "how does
+  that impact...?" or "what's underneath that?" to avoid interrogation feel.
+- Always close an elicitation segment with the META-QUESTION:
+  "Is there anything important I should have asked but didn't?"
+- When the user answers vaguely, mirror back ambiguity explicitly:
+  "You said 'fast.' In a requirement, 'fast' is untestable. For the
+   dashboard, would it be acceptable if it loaded in under 2 seconds on
+   a typical broadband connection for 95% of visits? If not, what's the
+   target?"
+
+## AMBIGUITY, CONTRADICTIONS, AND ASSUMPTIONS
+Actively hunt for these three failure modes. When you detect one, stop and
+name it:
+- AMBIGUITY: "The word 'users' here could mean registered customers, site
+  visitors, or internal admins. Which one do you mean?"
+- CONTRADICTION: "Earlier you said the system must work offline. This new
+  requirement assumes a live API call. One of these has to give — which?"
+- HIDDEN ASSUMPTION: "You're assuming the user is already logged in. Is that
+  guaranteed? What happens if they aren't?"
+
+Log every unresolved item in the OPEN QUESTIONS / TBD register with:
+  ID, Question, Why it matters, Blocker for which requirement, Owner,
+  Target resolution date.
+Never silently resolve a TBD — surface it.
+
+## UI / UX DESCRIPTIONS (WIREFRAME VOCABULARY ONLY)
+When describing screens, use precise information-architecture and
+interaction vocabulary, not design specifics. Anchor on:
+- Information Architecture (Rosenfeld/Morville): organization, labeling,
+  navigation, search.
+- Nielsen's 10 Heuristics — proactively check every flow.
+- Common web-app patterns to name when relevant:
+  • Nav: sidebar / top nav / breadcrumbs / tabs
+  • Forms: inline validation, progressive disclosure, autosave,
+    unsaved-changes guard, multi-step wizards
+  • Dashboards: KPI strip + card grid + filter bar
+  • CRUD: list + detail + edit-form + confirm-delete pattern
+  • Onboarding: welcome → role survey → checklist → first-aha within
+    minutes, with progress indicator
+  • Empty states, skeleton loaders, toasts, modals, confirmation dialogs
+- Responsive considerations: mobile (≤768 px), tablet, desktop (≥1024 px).
+  Always ask which is primary and which must be supported.
+- Accessibility default: assume WCAG 2.1 Level AA conformance unless the
+  user explicitly opts out.
+
+## OUTPUT FORMATS YOU ROUTINELY PRODUCE
+
+### Persona (compact)
+  Name · Role · Context · Tech comfort (1–5) · Primary goal ·
+  Secondary goals · Top frustrations · JTBD statement · Success metric
+
+### User Story with acceptance criteria
+  ID: US-<AREA>-<NN>      Priority: M/S/C/W      Kano: Basic/Perf/Delight
+  Story: As a <role>, I want <goal>, so that <benefit>.
+  Acceptance Criteria:
+    1. Given <context>, when <action>, then <outcome>.
+    2. Given ..., when ..., then ...
+  Definition of Ready check: [ ] Independent [ ] Valuable [ ] Estimable
+    [ ] Small (≤ a few days) [ ] Testable [ ] AC written [ ] NFRs linked
+  Linked NFRs: NFR-PERF-001, NFR-SEC-002
+  Open questions: none | OQ-012
+
+### EARS system requirement
+  REQ-<AREA>-<NN>: When <trigger>, the <s> shall <response>.
+
+### Use Case (textual, Cockburn-lite)
+  UC-<NN>: <Goal in verb-noun form>
+  Primary actor: <persona>
+  Preconditions: <list>
+  Main success scenario:
+    1. ...
+    2. ...
+  Extensions:
+    2a. <alternate> ...
+  Postconditions: <list>
+
+### NFR entry
+  NFR-<CATEGORY>-<NN>: <measurable statement>
+
+### Prioritized Backlog (MoSCoW table)
+  ID | Story | MoSCoW | Kano | Effort (T-shirt) | Depends on | Notes
+
+### Traceability Matrix
+  Goal → Persona → JTBD → Story ID → Acceptance Criteria → NFR refs
+
+### Open Questions / TBD Register
+  OQ-<NN> | Question | Why it matters | Blocks | Owner | Due
+
+### [BROWNFIELD] UX Audit Finding
+  FINDING-<NN>:
+  Heuristic: <which one>
+  Severity: Critical / Major / Minor / Cosmetic
+  Screen/Flow: <where>
+  Issue: <what's wrong>
+  Impact: <effect on user>
+  Recommendation: <what to do>
+
+### [BROWNFIELD] Technical Debt Entry
+  TD-<NN> | Description | Impact if deferred | Suggested timing | Size
+
+### [BROWNFIELD] Backlog Health Scorecard
+  Metric                        | Value    | Health
+  ─────────────────────────────────────────────────
+  Total open issues             | <n>      | —
+  Issues with acceptance criteria | <n>/<total> | 🟢/🟡/🔴
+  Issues with labels            | <n>/<total> | 🟢/🟡/🔴
+  Issues with milestone         | <n>/<total> | 🟢/🟡/🔴
+  Issues with size estimate     | <n>/<total> | 🟢/🟡/🔴
+  Stale issues (>90 days)       | <n>      | 🟢/🟡/🔴
+  Zombie issues (vague 1-liners)| <n>      | 🟢/🟡/🔴
+  Bug-to-feature ratio          | <ratio>  | —
+
+  Health thresholds:
+    🟢 >80% compliance | 🟡 50–80% | 🔴 <50%
+
+
+## GUARDRAILS AGAINST COMMON PITFALLS
+- SCOPE CREEP: every new idea gets triaged into the backlog with a MoSCoW
+  label; Musts outside the current release are refused with "this looks
+  like a Release 2 Must — let's park it."
+- GOLD PLATING: if you catch yourself suggesting a feature the user did not
+  ask for, stop and ask "is this a real user need or an assumption?"
+- AMBIGUITY: never accept qualitative adjectives ("fast," "secure," "easy")
+  — always convert to a measurable threshold with the user's help.
+- MISSING NFRs: at the end of every feature, run the NFR checklist aloud
+  and let the user accept, reject, or defer each category.
+- SOLUTION BIAS: keep requirements in problem/behavior language. If the
+  user says "add a dropdown," capture the underlying need ("the user must
+  be able to select one of a constrained list of options") and note the
+  dropdown as a design hint, not a requirement.
+- PREMATURE DESIGN: if a conversation drifts to tech stack or visual design,
+  redirect: "that's an implementation decision for your developer/designer;
+  what we need here is the requirement that will constrain their choice."
+- [BROWNFIELD] REWRITE URGE: resist the temptation to suggest rewriting
+  the app from scratch. Work with what exists. Only flag architectural
+  concerns when they demonstrably block user goals.
+- [BROWNFIELD] BACKLOG BANKRUPTCY: if the backlog has 100+ stale issues,
+  recommend a one-time "backlog bankruptcy" — archive everything older than
+  6 months with no activity, then re-add only what's still relevant.
+
+## TONE AND PACING
+- Warm, patient, Socratic. Treat the user as an expert in their domain
+  and yourself as an expert in how to capture that expertise.
+- Summarize back frequently: "Let me play that back..."
+- Offer choices, not ultimatums: "We could handle this two ways — A or B —
+  which fits your users better?"
+- Use numbered lists and tables for artifacts; use prose for interviewing.
+- Never overwhelm: if you have 12 clarifying questions, pick the 3 that
+  unblock the most downstream work and ask those first.
+
+## KICKOFF BEHAVIOR
+When the user first engages you, respond with:
+
+1. A one-sentence introduction of who you are and what you will NOT do
+   (no code, no tech choices, no visual design — only discovery, structure,
+   and documentation).
+2. Ask: "Are we starting fresh with a new idea (Greenfield), or are you
+   working on an existing application you want to improve (Brownfield)?"
+3. Based on the answer:
+   - GREENFIELD → Announce Phase 1: Frame, and ask the first context-free
+     process question: "In one or two sentences, what is the product you
+     want to build and who is it for?"
+   - BROWNFIELD → Announce Phase B1: Orient, and ask: "Tell me about your
+     application — what does it do, who uses it, and what's your tech stack?
+     If you can share your open Gitea issues (a link, export, or even a
+     screenshot), that will help me assess your backlog too."
+4. An offer: "We can go at whatever pace you like — a single 20-minute
+   sprint for a quick assessment, or multiple sessions to produce a full
+   requirements package. Which would you prefer?"
+
+## SUCCESS CRITERIA (YOUR OWN DEFINITION OF DONE)
+
+### Greenfield success:
+You have succeeded when the solo user can hand the following package to a
+freelance designer and a freelance developer and get back, with minimal
+clarification, a working MVP that matches their intent:
+  ✓ Project Brief with measurable goal
+  ✓ 1–3 personas with JTBD
+  ✓ User story map with an identified MVP slice
+  ✓ Prioritized backlog (MoSCoW) of INVEST-compliant stories with
+    Given-When-Then acceptance criteria
+  ✓ Use cases for non-trivial flows
+  ✓ EARS-phrased system rules with unique IDs
+  ✓ Complete NFR list with measurable thresholds
+  ✓ Wireframe-vocabulary screen descriptions
+  ✓ Traceability matrix from goal → story → acceptance criteria
+  ✓ Open Questions / TBD register, Assumptions, Risks, Glossary
+  ✓ No unresolved ambiguity in any Must-have requirement
+
+### Brownfield success:
+You have succeeded when the solo user has:
+  ✓ A clear understanding of their current stack and its constraints
+  ✓ A prioritized UX audit with actionable findings
+  ✓ A cleaned, structured, and prioritized backlog in Gitea
+  ✓ A gap analysis showing what's missing (features, NFRs, edge cases)
+  ✓ A technical debt register they can reference during planning
+  ✓ A lightweight, sustainable development workflow they can start using
+    immediately
+  ✓ Confidence in what to build next and why
+
+Begin.

.claude/settings.json

@@ -0,0 +1,3 @@
+{
+	"hooks": {}
+}

.claude/skills/deliver-issue/SKILL.md

@@ -0,0 +1,347 @@
+---
+name: deliver-issue
+description: Full end-to-end delivery of a Gitea issue for the Familienarchiv project — six-persona review → theme-grouped discussion walking through EVERY raised point with the user → isolated git worktree → TDD implementation → PR → review+fix loop until all personas approve (max 10 cycles). Use this skill whenever the user references a Gitea issue URL along with any of "deliver issue", "ship issue", "full cycle", "take it all the way", "review and implement", "do issue X end to end", or any phrasing implying review → discuss → implement → PR → review loop. This replaces ship-issue for this project — prefer deliver-issue unless the user explicitly asks for ship-issue.
+---
+
+# Deliver Issue — Review → Discuss → Implement → PR → Review Loop
+
+Own the full lifecycle for a Gitea issue. Two human checkpoints, everything else autonomous. The loop in Phase 7 is driven directly by this skill — do **not** delegate PR fixes to the `implement` skill, because its PR mode has a known issue of stopping after the first review cycle.
+
+## Input
+
+A Gitea issue URL. Both hostnames refer to the same instance:
+- `http://heim-nas:3005/marcel/familienarchiv/issues/<N>`
+- `http://192.168.178.71:3005/marcel/familienarchiv/issues/<N>`
+
+Parse: `owner = marcel`, `repo = familienarchiv`, `issue_number = <N>`.
+
+---
+
+## Phase 0 — Multi-Persona Review (autonomous)
+
+Invoke the `review-issue` skill with the issue URL. It reads the issue, loads all six personas from `.claude/personas/`, and posts one comment per persona to the Gitea issue.
+
+Wait for it to finish. Do not proceed until the six comments are posted.
+
+**Why autonomous:** the review is pure input-gathering — no decisions are made yet. The next phase is where the human gets involved.
+
+---
+
+## Phase 1 — Consolidate Every Point by Theme (autonomous)
+
+Re-read the issue and every persona comment from Phase 0 using `mcp__gitea__issue_read` (method `get_comments`).
+
+Extract **every** point raised — questions, concerns, suggestions, observations, even casual asides. Do not pre-filter to "open items only"; the user has specifically said past results are better when every raised point is walked through.
+
+Group points by **theme**, not by persona. A theme is a topical cluster — what the point is *about*, not who said it. Examples from past issues: `Auth model`, `Data migration`, `Accessibility`, `Testing strategy`, `Error handling`, `API surface`, `Rollback plan`.
+
+For each theme:
+
+1. Pick a short, specific theme name (not "Architecture concerns" — try "Service boundary between Document and Tag")
+2. List the points under it, each one prefixed with the persona(s) who raised it
+3. Dedupe near-identical points across personas but preserve attribution — if Felix and the tester both asked the same thing, note both
+
+Order themes by blast radius / blocking potential:
+- **First**: anything that shapes the data model, API, or irreversible architectural decisions
+- **Middle**: implementation approach, testing strategy, error handling
+- **Last**: polish — naming, copy, accessibility nits, follow-up ideas
+
+Example output shape (show this to the user before starting the walk-through):
+
+```
+## Themes to Discuss — Issue #<N>
+
+I've grouped the persona reviews into themes. We'll walk through every point.
+
+### 🏛️ Theme 1 — Service boundary between Document and Tag
+- [Architect, Felix] Should TagService own the cascade-delete, or is that Document's responsibility?
+- [Architect] What about Tag reuse across multiple documents — is there a count/reference mechanism?
+
+### 🔒 Theme 2 — Permission model for tag editing
+- [Security] Who can create tags? Reuse them? Admin-only?
+- [Felix] Should the @RequirePermission annotation sit on the controller or service method?
+
+### 🧪 Theme 3 — Test strategy
+- [Tester] How do we test the cascade with existing documents?
+- [Tester, Security] Do we need a test for the unauthorized-user path?
+
+### 💅 Theme 4 — UI feedback on tag operations
+- [UI] Optimistic update vs. wait-for-server?
+- [UI] Toast on success, or silent?
+
+Ready to start with Theme 1?
+```
+
+Stop and wait for the user's go-ahead before proceeding.
+
+---
+
+## Phase 2 — Interactive Walk-Through (HUMAN CHECKPOINT)
+
+Work through the themes **in order**, and within each theme walk through **every point**.
+
+For each point:
+
+1. State the point in your own words — what the persona was asking, why it matters from their angle
+2. Offer your read of the sensible answer, or if you genuinely don't know, say so
+3. Ask a focused, specific question — one question, not three
+4. Wait for the user's response
+5. React: accept, push back, propose an alternative if something the user said has an implication they may not have seen
+6. When the point feels resolved, record the decision internally and move to the next point
+
+Stay substantive. The value of this phase is the back-and-forth — don't rush through it. If the user says "skip" or "next", acknowledge and move on, marking the point as skipped.
+
+After the last point of the last theme, show a summary:
+
+```
+## Summary of Decisions
+
+### Theme 1 — Service boundary between Document and Tag
+- TagService owns cascade-delete. Document calls TagService.detachAll(docId) on deletion.
+- Tag reuse: add `tag_count` materialized field on documents table for fast badge render.
+
+### Theme 2 — Permission model
+- Admins-only for tag create. Reuse is open to all WRITE_ALL users.
+- @RequirePermission goes on controller methods (matches existing pattern in DocumentController).
+
+...
+```
+
+Then ask:
+
+> Ready to post these resolutions to the issue as a consolidated comment?
+
+Wait for explicit confirmation ("yes", "post it", "go ahead") before moving to Phase 3. If the user wants edits, loop back and adjust.
+
+---
+
+## Phase 3 — Post Consolidated Resolutions (autonomous)
+
+Post a single comment on the issue via `mcp__gitea__issue_write` (method `add_comment`).
+
+Format:
+
+```markdown
+# 🎯 Discussion Resolutions
+
+After reviewing the persona feedback with the user, here are the agreed decisions:
+
+## Theme 1 — <name>
+- **Decision**: ...
+- **Rationale**: ...
+
+## Theme 2 — <name>
+...
+
+---
+
+These resolutions now act as the authoritative design for implementation. The `implement` skill will read this comment alongside the original issue.
+```
+
+Include every resolved theme. For skipped points, note them under a `## Open / Skipped` section at the end so they're not lost.
+
+---
+
+## Phase 4 — Create Isolated Worktree (autonomous)
+
+Derive a short slug from the issue title: lowercase, hyphens instead of spaces, drop punctuation, max ~40 chars. E.g. "Admin: tag overhaul for bulk operations" → `admin-tag-overhaul`.
+
+From the project root (`/home/marcel/Desktop/familienarchiv`):
+
+```bash
+git fetch origin
+git worktree add ../familienarchiv-issue-<N> -b feat/issue-<N>-<slug> origin/main
+cd ../familienarchiv-issue-<N>
+```
+
+**Why a sibling worktree:** the user's main workspace stays untouched so other work can continue in parallel. The worktree gets its own branch from a fresh `origin/main` — no stale state carried over.
+
+Report the worktree path to the user in one line before moving on. All subsequent phases run inside this worktree.
+
+---
+
+## Phase 5 — Implement (HUMAN CHECKPOINT — plan approval)
+
+Invoke the `implement` skill with the issue URL.
+
+The `implement` skill will:
+1. Re-read the issue including the `Discussion Resolutions` comment just posted
+2. Ask any clarification questions (usually few or none — the discussion covered most)
+3. Present an implementation plan as a numbered TDD task list
+4. **Pause for plan approval** — this is the second human checkpoint
+
+**Why keep this pause** even after the full discussion: the plan is where abstract decisions meet concrete test order and file touches. A one-minute skim catches plan-level mistakes (wrong order, missing task, over-scoped item) that are cheap to fix before code is written and expensive to unwind afterward.
+
+After the user approves, `implement` does autonomous TDD through every task and commits atomically (red → green → refactor → commit).
+
+When `implement` reports "all tests green ✅", **continue immediately** to Phase 6 without pausing for acknowledgment.
+
+---
+
+## Phase 6 — Open Pull Request (autonomous)
+
+From inside the worktree:
+
+1. Push: `git push -u origin HEAD`
+2. Fetch issue title via `mcp__gitea__issue_read` (method `get`)
+3. Create PR via `mcp__gitea__pull_request_write` (method `create`):
+
+```
+owner:  marcel
+repo:   familienarchiv
+head:   feat/issue-<N>-<slug>
+base:   main
+title:  <exact issue title>
+body: |
+  Closes #<N>
+
+  ## Summary
+  <one paragraph summarizing what was built, referencing the Discussion Resolutions>
+```
+
+Capture the PR index from the response. Announce:
+
+> PR #<index> opened: http://heim-nas:3005/marcel/familienarchiv/pulls/<index>
+
+Continue immediately to Phase 7.
+
+---
+
+## Phase 7 — Review + Fix Loop (autonomous, max 10 cycles, owned by this skill)
+
+Initialize `cycle = 1`. The loop runs without pausing unless a genuine technical blocker is hit.
+
+### Step A — Run review-pr
+
+Announce: `🔍 Review cycle <cycle>/10`
+
+Invoke the `review-pr` skill with the PR URL. It posts six persona reviews, each with a verdict (`✅ Approved`, `⚠️ Approved with concerns`, or `🚫 Changes requested`).
+
+Read the summary `review-pr` reports back.
+
+- **All six personas approved** (no `🚫`, no `⚠️`) → exit loop, go to Phase 8 **immediately**.
+- **Any concerns or blockers** → proceed to Step B **immediately**, no pause.
+
+### Step B — Address Every Concern (don't delegate to implement)
+
+If `cycle == 10`: stop, go to the cycle-limit handoff at the end of this phase.
+
+**Do the work in this skill directly.** The `implement` skill has a known bug where it sometimes stops after the first PR review cycle; routing fixes through it breaks the loop. Apply the same TDD discipline inline:
+
+**1. Collect all open concerns** — read every PR review comment posted since the last push via `mcp__gitea__pull_request_read` / `issue_read` on the PR. Build a flat list:
+- Blockers
+- Suggestions / concerns
+- Unanswered questions
+
+Tag each with the persona who raised it and a short quote so the commit + summary comment can reference them.
+
+**2. Fix every addressable concern** — the user has explicitly rejected the defer-concerns-and-nits strategy. Within the 10-cycle budget, fix everything that is *addressable in this PR*. For each concern:
+
+- **Red**: write a failing test that captures the required behavior (for code concerns) or a check that fails today (for config/infra concerns)
+- **Green**: minimum code to pass; run the full test suite
+- **Refactor**: only if there's actual duplication or naming cleanup
+- **Commit**: atomic per concern, message referencing the persona and excerpt:
+
+```
+fix(scope): address <persona> — <short quote>
+
+<optional explanation>
+
+Co-Authored-By: Claude <noreply@anthropic.com>
+```
+
+Test commands for this project:
+- Backend: `cd backend && ./mvnw test` (single class: `./mvnw test -Dtest=ClassName`)
+- Frontend unit tests: `cd frontend && npm run test`
+- Frontend type check: `cd frontend && npm run check`
+- Full backend build: `cd backend && ./mvnw clean package -DskipTests`
+
+**3. Create new issues only for genuinely out-of-scope concerns** — concerns that require architectural rework this PR can't contain, or that belong to a different domain entirely. Use `mcp__gitea__issue_write` (method `create`):
+
+```
+title: <short description>
+body: |
+  ## Background
+  Raised during PR #<pr_index> review cycle <cycle>.
+
+  ## Concern
+  <persona name, quoted text>
+
+  ## Why deferred
+  <why this belongs in its own issue, not this PR>
+
+  ## Reference
+  PR: http://heim-nas:3005/marcel/familienarchiv/pulls/<pr_index>
+```
+
+The bar for "out of scope" is high — reach for it only when the concern genuinely doesn't belong in this PR. Everything else gets fixed.
+
+**4. Push and post a summary comment** — once all fixable concerns are committed:
+
+```bash
+git push
+```
+
+Post one PR comment via `mcp__gitea__issue_write` (PRs share the comment API):
+
+```markdown
+## Review Cycle <cycle> — Changes
+
+### Addressed
+- [@developer] Magic number replaced with `MAX_RESULTS` constant — commit `<sha>`
+- [@security] Added input validation for tag name length — commit `<sha>`
+- ...
+
+### Deferred to new issues
+- [@architect] Redesign of permission cascade — #<new_issue_number>
+
+Re-running review cycle <cycle+1>.
+```
+
+**5. Loop** — increment `cycle`, return to Step A. No pause, no confirmation.
+
+### If cycle 10 is reached without full approval
+
+Stop. Report:
+
+```
+⚠️ Reached 10 review/fix cycles — remaining open concerns:
+
+<list per-persona concerns still open>
+
+PR: <url>
+Worktree: <path>
+
+How would you like to proceed? Options: continue manually, merge as-is, close.
+```
+
+Let the user decide. Do not make this decision autonomously.
+
+---
+
+## Phase 8 — Final Report
+
+All six personas approved. Report:
+
+```
+✅ Delivery complete — PR #<index> fully approved
+
+Cycles: <cycle - 1> review/fix round(s)
+PR:       http://heim-nas:3005/marcel/familienarchiv/pulls/<index>
+Worktree: /home/marcel/Desktop/familienarchiv-issue-<N>
+Branch:   feat/issue-<N>-<slug>
+
+Ready for manual merge.
+```
+
+Do not merge the PR automatically — merge is the user's final gate.
+
+---
+
+## Operating Notes
+
+- **Two human checkpoints, nothing else.** Phase 2 (walk-through) and Phase 5 (plan approval). Every other phase runs without pausing, including the full review→fix loop.
+- **Genuine blockers pause the flow.** If a test setup is missing, an API doesn't exist, or the worktree can't be created, stop and surface it — don't burn cycles working around it silently.
+- **Worktree isolation means other work continues.** The main workspace at `/home/marcel/Desktop/familienarchiv` is untouched. The user can keep working there while `deliver-issue` runs the pipeline in the sibling worktree.
+- **Posting side effects are real.** Phase 0 posts six comments to Gitea. Phase 3 posts the resolutions comment. Phase 6 opens a PR. Each review cycle posts six review comments plus one summary comment. Don't run this skill on an issue you're still drafting.
+- **If the user interrupts mid-loop**, honor it. Stop where you are and let them redirect.

.devcontainer/CLAUDE.md

@@ -0,0 +1,96 @@
+# Dev Container — Familienarchiv
+
+## Overview
+
+VS Code Dev Container configuration for a pre-configured development environment. Includes Java 21, Maven, and Node.js 24 — everything needed to work on both backend and frontend.
+
+## Configuration
+
+File: `.devcontainer/devcontainer.json`
+
+### Included Features
+
+| Feature | Version | Purpose |
+|---|---|---|
+| Java | 21 | Spring Boot backend |
+| Maven | bundled with Java feature | Build tool |
+| Node.js | 24 | SvelteKit frontend |
+
+### VS Code Extensions (Auto-installed)
+
+| Extension | Purpose |
+|---|---|
+| `vscjava.vscode-java-pack` | Java language support, debugging, testing |
+| `vmware.vscode-spring-boot` | Spring Boot tooling |
+| `gabrielbb.vscode-lombok` | Lombok annotation support |
+| `humao.rest-client` | HTTP request files (for `backend/api_tests/`) |
+
+### Ports
+
+- `8080` forwarded to host — access backend at `http://localhost:8080`
+
+### User
+
+Runs as `vscode` user (not root) for security.
+
+## How to Use
+
+### Prerequisites
+
+- VS Code with the **Dev Containers** extension installed
+- Docker running locally
+
+### Open in Dev Container
+
+1. Open the project in VS Code
+2. Press `F1` → type "Dev Containers: Reopen in Container"
+3. VS Code will:
+   - Build the container using the root `docker-compose.yml`
+   - Install Java 21, Maven, and Node 24
+   - Install the listed extensions
+   - Mount the workspace folder
+
+### Working Inside the Container
+
+Once inside the container, you have access to both stacks:
+
+```bash
+# Backend
+cd backend
+./mvnw spring-boot:run
+
+# Frontend (in a new terminal)
+cd frontend
+npm install
+npm run dev
+```
+
+The container reuses the `docker-compose.yml` services, so PostgreSQL and MinIO are available automatically.
+
+### Forwarding Frontend Port
+
+The devcontainer config only forwards port 8080 by default. To access the frontend dev server (port 5173 or 3000), either:
+
+1. Add `5173` to `forwardPorts` in `devcontainer.json`, or
+2. Use the VS Code "Ports" panel to forward it dynamically
+
+## Limitations
+
+- The devcontainer attaches to the `backend` service from `docker-compose.yml`, so it inherits those environment variables
+- OCR service and other containers should be started separately via `docker-compose up -d`
+- GPU passthrough for OCR training is not configured
+
+## Customization
+
+To add more tools or extensions, edit `.devcontainer/devcontainer.json`:
+
+```json
+{
+  "features": {
+    "ghcr.io/devcontainers/features/python:1": {
+      "version": "3.11"
+    }
+  },
+  "forwardPorts": [8080, 5173, 3000]
+}
+```

.gitea/workflows/ci.yml

@@ -42,7 +42,7 @@ jobs:
 
       - name: Upload screenshots
         if: always()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: unit-test-screenshots
           path: frontend/test-results/screenshots/

.gitignore

@@ -13,3 +13,10 @@ scripts/large-data.sql
 .vitest-attachments
 **/test-results/
 .worktrees/
+.superpowers/
+.agent/
+.claude/worktrees/
+.claude/scheduled_tasks.lock
+
+# Repo uses npm; yarn.lock is ignored to avoid double-lockfile drift.
+frontend/yarn.lock

CLAUDE.md

@@ -1,5 +1,7 @@
 # CLAUDE.md
 
+> For a human-readable project overview, see [README.md](./README.md).
+
 This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
 
 ## Project Overview
@@ -64,16 +66,28 @@ npm run generate:api  # Regenerate TypeScript API types from OpenAPI spec
 
 ### Package Structure
 
+Package-by-domain: each domain owns its controller, service, repository, entities, and DTOs.
+
 ```
 backend/src/main/java/org/raddatz/familienarchiv/
-├── controller/     REST endpoints — thin, delegate everything to services
-├── service/        Business logic — the only place that touches repositories
-├── repository/     Spring Data JPA interfaces
-├── model/          JPA entities
-├── dto/            Input objects (request bodies/form data)
-├── exception/      DomainException + ErrorCode enum
-├── security/       SecurityConfig, Permission enum, @RequirePermission, PermissionAspect
-└── config/         MinioConfig, AsyncConfig
+├── audit/               Audit logging
+├── config/              Infrastructure config (Minio, Async, Web)
+├── dashboard/           Dashboard analytics + StatsController/StatsService
+├── document/            Document domain (entities, controller, service, repository, DTOs)
+│   ├── annotation/      DocumentAnnotation, AnnotationService, AnnotationController
+│   ├── comment/         DocumentComment, CommentService, CommentController
+│   └── transcription/   TranscriptionBlock, TranscriptionService, TranscriptionBlockQueryService
+├── exception/           DomainException, ErrorCode, GlobalExceptionHandler
+├── filestorage/         FileService (S3/MinIO)
+├── geschichte/          Geschichte (story) domain
+├── importing/           MassImportService
+├── notification/        Notification domain + SseEmitterRegistry
+├── ocr/                 OCR domain — OcrService, OcrBatchService, training
+├── person/              Person domain
+│   └── relationship/    PersonRelationship sub-domain
+├── security/            SecurityConfig, Permission, @RequirePermission, PermissionAspect
+├── tag/                 Tag domain
+└── user/                User domain — AppUser, UserGroup, UserService, auth controllers
 ```
 
 ### Layering Rules (strictly enforced)
@@ -144,7 +158,6 @@ Services are annotated with `@Service`, `@RequiredArgsConstructor`, and optional
 | `UserService` | User and group CRUD |
 | `FileService` | S3/MinIO upload and download |
 | `MassImportService` | Async ODS/Excel import; delegates to PersonService and TagService |
-| `ExcelService` | Lower-level spreadsheet parsing |
 
 ### DTOs
 
@@ -311,13 +324,15 @@ Save bar pattern — use **sticky full-bleed** for long forms (edit document), *
 <div class="mt-4 flex items-center justify-between rounded-sm border border-brand-sand bg-white px-6 py-4 shadow-sm">
 ```
 
-Back link pattern:
+Back button pattern — use the shared `<BackButton>` component from `$lib/components/BackButton.svelte`:
 ```svelte
-<a href="/persons" class="inline-flex items-center text-xs font-bold uppercase tracking-widest text-gray-500 hover:text-brand-navy transition-colors group mb-4">
-    <svg class="w-4 h-4 mr-2 transform group-hover:-translate-x-1 transition-transform" .../>
-    Zurück zur Übersicht
-</a>
+<script lang="ts">
+    import BackButton from '$lib/components/BackButton.svelte';
+</script>
+
+<BackButton />
 ```
+The component calls `history.back()` so the user returns to wherever they came from. Label is always "Zurück" (no contextual suffix — destination is unknown). Touch target ≥ 44px and focus ring are built in. Do not use a static `<a href>` for back navigation.
 
 Subtle action link (e.g. "new document/person"):
 ```svelte

COLLABORATING.md

@@ -185,3 +185,40 @@ Quick reminders:
 - No premature abstractions — KISS beats DRY
 - No backwards-compatibility shims for code that has no callers
 - Validate at system boundaries only (user input, external APIs)
+
+## Frontend Domain Boundaries
+
+The frontend mirrors the backend's package-by-domain structure. Each Tier-1 folder under `src/lib/` is a domain with a hard import boundary:
+
+```
+document  person  tag  user  geschichte  notification  ocr
+activity  conversation  shared
+```
+
+The `boundaries/dependencies` ESLint rule enforces this. The full allow-list lives in `frontend/eslint.config.js`. The rule fires at error severity and blocks `npm run lint`.
+
+### Allowed cross-domain imports
+
+| From | May import from |
+|---|---|
+| `document` | `shared`, `person`, `tag`, `ocr`, `activity`, `conversation` |
+| `geschichte` | `shared`, `person`, `document` |
+| `ocr` | `shared`, `document` |
+| `activity` | `shared`, `notification` |
+| `person`, `tag`, `user`, `notification`, `conversation` | `shared` only |
+| `shared` | `shared` only |
+| `routes` | any domain |
+
+### When you need to cross a boundary
+
+1. **Move the code to `$lib/shared/`** — the correct fix when the code is truly generic (a UI primitive, a pure utility, a formatting helper).
+2. **Add an explicit rule** — if a cross-domain dependency is architecturally justified (e.g., `document` importing `PersonTypeahead`), add the allow entry to `eslint.config.js` with a comment explaining the reason.
+3. **Use `// eslint-disable-next-line boundaries/dependencies`** — last resort, only for cases where neither option is practical. Leave a comment explaining why.
+
+### Verifying the rule works
+
+```bash
+npm run lint:boundary-demo   # exits 1 — shows the rule firing on a deliberate tag→person violation
+```
+
+The fixture lives at `src/lib/tag/__fixtures__/cross-domain.fixture.ts` and is excluded from `npm run lint` via `--ignore-pattern`.

README.md

@@ -0,0 +1,93 @@
+# Familienarchiv
+
+Familienarchiv is a private web application for digitising, organising, and searching a family document collection — letters, postcards, and photographs from 1899 to 1950. Family members upload scans, transcribe handwritten text (Kurrent/Sütterlin), and read the archive from any device.
+
+---
+
+## Subsystems
+
+- `frontend/` — SvelteKit 2 / Svelte 5 / TypeScript / Tailwind 4 web app (server-side rendered)
+- `backend/` — Spring Boot 4 (Java 21) REST API; handles documents, persons, search, and user management
+- `ocr-service/` — Python FastAPI microservice for OCR and handwritten text recognition (HTR); single-node by design — see [ADR-001](docs/adr/001-ocr-python-microservice.md). Not part of the default dev stack (see Quick start below)
+- `infra/` — Gitea Actions CI/CD config; future home for infrastructure-as-code
+- `scripts/` — operational and data-pipeline helpers (`reset-db.sh`, `clean-e2e-data.sh`, import scripts)
+
+---
+
+## Quick start
+
+**Prerequisites:** Java 21, Node 24, Docker with the `docker compose` plugin (V2).
+
+### 1. Configure environment
+
+```bash
+cp .env.example .env
+# The defaults in .env.example work for local development without changes.
+```
+
+### 2. Start infrastructure
+
+```bash
+# Starts PostgreSQL, MinIO (object storage), and Mailpit (dev mail catcher)
+docker compose up -d db minio mailpit
+```
+
+### 3. Start the backend
+
+```bash
+cd backend
+./mvnw spring-boot:run
+# Starts on http://localhost:8080
+# API docs (dev profile, auto-enabled): http://localhost:8080/v3/api-docs
+```
+
+### 4. Start the frontend
+
+```bash
+cd frontend
+npm install
+npm run dev
+# Starts on http://localhost:5173
+```
+
+Open **http://localhost:5173** — you should see the Familienarchiv login screen.
+
+Default development credentials:
+
+```
+# local dev only — change before any network-exposed deployment
+Email:    admin@familyarchive.local
+Password: admin123
+```
+
+> **Development setup only.** The default `docker compose` config exposes the database port and uses root MinIO credentials. Do not connect this to a network without first reading `docs/DEPLOYMENT.md` _(coming: [DOC-5, #399](http://heim-nas:3005/marcel/familienarchiv/issues/399))_.
+
+### Running the full stack via Docker (optional)
+
+To run everything including the backend and frontend in containers:
+
+```bash
+docker compose up -d
+```
+
+Note: the OCR service (`ocr-service/`) builds its Docker image locally and downloads ~6 GB of ML models on first start. Expect 30–60 minutes on a first run. The rest of the stack starts independently; OCR can be excluded with `--scale ocr-service=0` on memory-constrained machines (requires ≥ 12 GB RAM).
+
+---
+
+## Where to go next
+
+| Resource | Purpose |
+|---|---|
+| [docs/architecture/c4-diagrams.md](docs/architecture/c4-diagrams.md) | C4 container and component diagrams (current system view) |
+| [docs/ARCHITECTURE.md](docs/ARCHITECTURE.md) _(coming: [DOC-2, #396](http://heim-nas:3005/marcel/familienarchiv/issues/396))_ | Full architecture guide with domain list |
+| [docs/GLOSSARY.md](docs/GLOSSARY.md) | Overloaded terms: Person vs AppUser, Chronik vs Aktivität, etc. |
+| [CONTRIBUTING.md](CONTRIBUTING.md) _(coming: [DOC-4, #398](http://heim-nas:3005/marcel/familienarchiv/issues/398))_ | How to add a domain, endpoint, or SvelteKit route |
+| [docs/DEPLOYMENT.md](docs/DEPLOYMENT.md) _(coming: [DOC-5, #399](http://heim-nas:3005/marcel/familienarchiv/issues/399))_ | Production deployment checklist and secrets guide |
+| [docs/adr/](docs/adr/) | Architecture Decision Records — the "why" behind key choices |
+| [Gitea issue tracker](http://heim-nas:3005/marcel/familienarchiv/issues) _(internal — home network only)_ | Bug reports, feature requests, and project planning |
+
+---
+
+## License
+
+Private project — all rights reserved. Not licensed for redistribution.

backend/CLAUDE.md

@@ -0,0 +1,189 @@
+# Backend — Familienarchiv
+
+## Overview
+
+Spring Boot 4.0 monolith serving the Familienarchiv REST API. Handles document management, person/entity tracking, transcription workflows, OCR orchestration, user management, and full-text search.
+
+## Tech Stack
+
+- **Framework**: Spring Boot 4.0 (Java 21)
+- **Build**: Maven (`./mvnw` wrapper)
+- **Server**: Jetty (not Tomcat — excluded in pom.xml)
+- **Data**: PostgreSQL 16, JPA/Hibernate, Spring Data JPA
+- **Migrations**: Flyway (SQL files in `src/main/resources/db/migration/`)
+- **Security**: Spring Security, Spring Session JDBC, JWT tokens
+- **File Storage**: MinIO via AWS SDK v2 (S3-compatible)
+- **Spreadsheet Import**: Apache POI 5.5.0 (Excel/ODS)
+- **API Docs**: SpringDoc OpenAPI 3.x (`/v3/api-docs` — dev profile only)
+- **Monitoring**: Spring Boot Actuator (`/actuator/health`)
+
+## Package Structure
+
+Package-by-domain: each domain owns its controller, service, repository, entities, and DTOs.
+
+```
+src/main/java/org/raddatz/familienarchiv/
+├── audit/               # Audit logging (AuditService, AuditLogQueryService)
+├── config/              # Infrastructure config (MinioConfig, AsyncConfig, WebConfig)
+├── dashboard/           # Dashboard analytics + StatsController/StatsService
+├── document/            # Document domain — entities, controller, service, repository, DTOs
+│   ├── annotation/      # DocumentAnnotation, AnnotationService, AnnotationController
+│   ├── comment/         # DocumentComment, CommentService, CommentController
+│   └── transcription/   # TranscriptionBlock, TranscriptionService, TranscriptionBlockQueryService
+├── exception/           # DomainException, ErrorCode, GlobalExceptionHandler
+├── filestorage/         # FileService (S3/MinIO)
+├── geschichte/          # Geschichte (story) domain
+├── importing/           # MassImportService
+├── notification/        # Notification domain + SseEmitterRegistry
+├── ocr/                 # OCR domain — OcrService, OcrBatchService, training
+├── person/              # Person domain — Person, PersonService, PersonController
+│   └── relationship/    # PersonRelationship sub-domain
+├── security/            # SecurityConfig, Permission, @RequirePermission, PermissionAspect
+├── tag/                 # Tag domain — Tag, TagService, TagController
+└── user/                # User domain — AppUser, UserGroup, UserService, auth controllers
+```
+
+## Layering Rules (Strict)
+
+```
+Controller → Service → Repository → DB
+```
+
+- **Controllers never call repositories directly.**
+- **Services never reach into another domain's repository.** Call the other domain's service instead.
+  - ✅ `DocumentService` → `PersonService.getById()` → `PersonRepository`
+  - ❌ `DocumentService` → `PersonRepository` directly
+
+## Key Entities
+
+| Entity | Table | Key Relationships |
+|---|---|---|
+| `Document` | `documents` | ManyToOne sender (Person), ManyToMany receivers (Person), ManyToMany tags (Tag) |
+| `Person` | `persons` | Referenced by documents as sender/receiver; name aliases table |
+| `Tag` | `tag` | ManyToMany with documents via `document_tags`; self-referencing parent for tree |
+| `AppUser` | `app_users` | ManyToMany groups (UserGroup) |
+| `UserGroup` | `user_groups` | Has a `Set<String> permissions` |
+| `TranscriptionBlock` | `transcription_blocks` | Per-document, per-page text blocks with polygons |
+| `DocumentAnnotation` | `document_annotations` | Free-form annotations on document pages |
+| `Comment` | `document_comments` | Threaded comments with mentions |
+| `Notification` | `notifications` | User notification feed |
+| `OcrJob` / `OcrJobDocument` | `ocr_jobs`, `ocr_job_documents` | Batch OCR job tracking |
+
+**`DocumentStatus` lifecycle:** `PLACEHOLDER → UPLOADED → TRANSCRIBED → REVIEWED → ARCHIVED`
+
+## Entity Code Style
+
+All entities use these Lombok annotations:
+
+```java
+@Entity
+@Table(name = "table_name")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+public class MyEntity {
+    @Id
+    @GeneratedValue(strategy = GenerationType.UUID)
+    @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+    private UUID id;
+    // ...
+}
+```
+
+- `@Schema(requiredMode = REQUIRED)` on every field the backend always populates — drives TypeScript generation.
+- Collections use `@Builder.Default` with `new HashSet<>()` as default.
+- Timestamps use `@CreationTimestamp` / `@UpdateTimestamp`.
+
+## Services
+
+- Annotated with `@Service`, `@RequiredArgsConstructor`, optionally `@Slf4j`.
+- Write methods: `@Transactional`.
+- Read methods: no annotation (default non-transactional).
+- Cross-domain access goes through the other domain's service, never its repository.
+
+## Error Handling
+
+Use `DomainException` for all domain errors:
+
+```java
+DomainException.notFound(ErrorCode.DOCUMENT_NOT_FOUND, "...")
+DomainException.forbidden("...")
+DomainException.conflict(ErrorCode.IMPORT_ALREADY_RUNNING, "...")
+DomainException.internal(ErrorCode.FILE_UPLOAD_FAILED, "...")
+```
+
+When adding a new `ErrorCode`:
+1. Add to `ErrorCode.java`
+2. Mirror in frontend `src/lib/errors.ts`
+3. Add Paraglide translation key in `messages/{de,en,es}.json`
+
+## Security / Permissions
+
+Use `@RequirePermission` on controller methods or classes:
+
+```java
+@RequirePermission(Permission.WRITE_ALL)
+public Document updateDocument(...) { ... }
+```
+
+Available permissions: `READ_ALL`, `WRITE_ALL`, `ADMIN`, `ADMIN_USER`, `ADMIN_TAG`, `ADMIN_PERMISSION`
+
+`PermissionAspect` checks the current user's `UserGroup.permissions` at runtime.
+
+## OCR Integration
+
+The backend orchestrates OCR by calling the Python `ocr-service` microservice via `RestClient`:
+
+- `OcrClient` interface — mockable for tests
+- `RestClientOcrClient` — implementation using Spring `RestClient`
+- `OcrService` — orchestrates presigned URL generation, OCR call, block mapping
+- `OcrBatchService` — handles batch/job workflows
+- `OcrAsyncRunner` — async execution of OCR jobs
+
+## API Testing
+
+HTTP test files in `backend/api_tests/` for the VS Code REST Client extension.
+
+## How to Run
+
+### Local Development
+
+```bash
+cd backend
+
+# Run with dev profile (requires PostgreSQL + MinIO running via docker-compose)
+./mvnw spring-boot:run
+
+# Build JAR (with tests)
+./mvnw clean package
+
+# Build JAR skipping tests
+./mvnw clean package -DskipTests
+
+# Run all tests
+./mvnw test
+
+# Run a single test class
+./mvnw test -Dtest=ClassName
+
+# Run with coverage (JaCoCo)
+./mvnw clean verify
+```
+
+### OpenAPI TypeScript Generation
+
+1. Build and start backend with `--spring.profiles.active=dev`
+2. In `frontend/`, run: `npm run generate:api`
+
+### Profiles
+
+- **dev** (default): Enables OpenAPI, dev configs, e2e seeds
+- **prod**: Production profile — no dev endpoints
+
+## Testing
+
+- Unit tests: Mockito + JUnit, pure in-memory
+- Slice tests: `@WebMvcTest`, `@DataJpaTest` with Testcontainers PostgreSQL
+- Integration tests: Full Spring context with Testcontainers
+- Coverage gate: 88% branch coverage overall (JaCoCo)

backend/api_tests/Transcription.http

@@ -0,0 +1,3 @@
+### Mark all blocks as reviewed
+PUT http://localhost:8080/api/documents/{{documentId}}/transcription-blocks/review-all
+Authorization: Basic admin admin123

backend/lombok.config

@@ -0,0 +1 @@
+lombok.copyableAnnotations += org.springframework.context.annotation.Lazy

backend/pom.xml

@@ -108,6 +108,12 @@
 			<groupId>org.awaitility</groupId>
 			<artifactId>awaitility</artifactId>
 			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>com.tngtech.archunit</groupId>
+			<artifactId>archunit-junit5</artifactId>
+			<version>1.3.0</version>
+			<scope>test</scope>
 		</dependency>
 				<!-- Excel Bearbeitung (Apache POI) -->
 		<dependency>
@@ -164,12 +170,26 @@
 			<version>3.0.2</version>
 		</dependency>
 
-		<!-- PDF rendering for training data export -->
+		<!-- PDF rendering for training data export and thumbnail generation -->
 		<dependency>
 			<groupId>org.apache.pdfbox</groupId>
 			<artifactId>pdfbox</artifactId>
 			<version>3.0.4</version>
 		</dependency>
+
+		<!-- TIFF decoding plugin for ImageIO (thumbnail generation from scanned TIFFs) -->
+		<dependency>
+			<groupId>com.twelvemonkeys.imageio</groupId>
+			<artifactId>imageio-tiff</artifactId>
+			<version>3.12.0</version>
+		</dependency>
+
+		<!-- HTML sanitization for Geschichten rich-text body (defense-in-depth alongside Tiptap on the client) -->
+		<dependency>
+			<groupId>com.googlecode.owasp-java-html-sanitizer</groupId>
+			<artifactId>owasp-java-html-sanitizer</artifactId>
+			<version>20240325.1</version>
+		</dependency>
 	</dependencies>
 
 

backend/src/main/java/org/raddatz/familienarchiv/audit/ActivityFeedRow.java

@@ -12,4 +12,9 @@ public interface ActivityFeedRow {
     UUID getDocumentId();
     Instant getHappenedAt();
     boolean isYouMentioned();
+    boolean isYouParticipated();
+    int getCount();
+    Instant getHappenedAtUntil();
+    /** Present only for COMMENT_ADDED and MENTION_CREATED — null otherwise. */
+    UUID getCommentId();
 }

backend/src/main/java/org/raddatz/familienarchiv/audit/AuditKind.java

@@ -1,5 +1,7 @@
 package org.raddatz.familienarchiv.audit;
 
+import java.util.Set;
+
 public enum AuditKind {
 
     /** Payload: none */
@@ -25,4 +27,18 @@ public enum AuditKind {
 
     /** Payload: {@code {"commentId": "uuid", "mentionedUserId": "uuid"}} */
     MENTION_CREATED,
+
+    /** Payload: {@code {"userId": "uuid", "email": "addr"}} */
+    USER_CREATED,
+
+    /** Payload: {@code {"userId": "uuid", "email": "addr"}} */
+    USER_DELETED,
+
+    /** Payload: {@code {"userId": "uuid", "email": "addr", "addedGroups": ["Admin"], "removedGroups": []}} */
+    GROUP_MEMBERSHIP_CHANGED;
+
+    public static final Set<AuditKind> ROLLUP_ELIGIBLE = Set.of(
+            TEXT_SAVED, FILE_UPLOADED, ANNOTATION_CREATED,
+            BLOCK_REVIEWED, COMMENT_ADDED, MENTION_CREATED
+    );
 }

backend/src/main/java/org/raddatz/familienarchiv/audit/AuditLogQueryRepository.java

@@ -1,10 +1,13 @@
 package org.raddatz.familienarchiv.audit;
 
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;
 
 import java.time.OffsetDateTime;
+import java.util.Collection;
 import java.util.List;
 import java.util.Optional;
 import java.util.UUID;
@@ -23,36 +26,92 @@ public interface AuditLogQueryRepository extends JpaRepository<AuditLog, UUID> {
     Optional<UUID> findMostRecentDocumentIdByActor(@Param("userId") UUID userId);
 
     @Query(value = """
-            SELECT * FROM (
-                SELECT DISTINCT ON (a.actor_id, a.document_id, a.kind, date_trunc('hour', a.happened_at))
-                    a.kind                                            AS kind,
-                    a.actor_id                                        AS actorId,
-                    CASE
-                        WHEN u.first_name IS NOT NULL AND u.last_name IS NOT NULL
-                            THEN UPPER(LEFT(u.first_name, 1)) || UPPER(LEFT(u.last_name, 1))
-                        WHEN u.first_name IS NOT NULL THEN UPPER(LEFT(u.first_name, 1))
-                        WHEN u.last_name  IS NOT NULL THEN UPPER(LEFT(u.last_name, 1))
-                        ELSE '?'
-                    END                                               AS actorInitials,
-                    COALESCE(u.color, '')                             AS actorColor,
-                    CONCAT_WS(' ', u.first_name, u.last_name)        AS actorName,
-                    a.document_id                                     AS documentId,
-                    a.happened_at                                     AS happened_at,
-                    (a.kind = 'MENTION_CREATED'
-                        AND a.payload->>'mentionedUserId' = :currentUserId) AS youMentioned
+            WITH events AS (
+                SELECT
+                    a.kind,
+                    a.actor_id,
+                    a.document_id,
+                    a.happened_at,
+                    a.payload,
+                    LAG(a.happened_at) OVER (
+                        PARTITION BY a.actor_id, a.document_id, a.kind
+                        ORDER BY a.happened_at
+                    ) AS prev_happened_at
                 FROM audit_log a
-                LEFT JOIN users u ON u.id = a.actor_id
-                WHERE a.kind IN ('TEXT_SAVED','FILE_UPLOADED','ANNOTATION_CREATED','COMMENT_ADDED','MENTION_CREATED')
+                WHERE a.kind IN (:kinds)
                   AND a.document_id IS NOT NULL
-                ORDER BY a.actor_id, a.document_id, a.kind,
-                         date_trunc('hour', a.happened_at), a.happened_at DESC
-            ) deduped
-            ORDER BY happened_at DESC
+            ),
+            sessions_marked AS (
+                SELECT
+                    kind, actor_id, document_id, happened_at, payload,
+                    CASE
+                        WHEN kind IN ('COMMENT_ADDED','MENTION_CREATED') THEN 1
+                        WHEN prev_happened_at IS NULL THEN 1
+                        WHEN EXTRACT(EPOCH FROM (happened_at - prev_happened_at)) > 7200 THEN 1
+                        ELSE 0
+                    END AS is_new_session
+                FROM events
+            ),
+            sessions AS (
+                SELECT
+                    kind, actor_id, document_id, happened_at, payload,
+                    SUM(is_new_session) OVER (
+                        PARTITION BY actor_id, document_id, kind
+                        ORDER BY happened_at
+                        ROWS UNBOUNDED PRECEDING
+                    ) AS session_id
+                FROM sessions_marked
+            ),
+            aggregated AS (
+                SELECT
+                    s.kind,
+                    s.actor_id,
+                    s.document_id,
+                    s.session_id,
+                    MIN(s.happened_at)                                            AS happened_at,
+                    CASE WHEN COUNT(*) > 1 THEN MAX(s.happened_at) ELSE NULL END  AS happened_at_until,
+                    COUNT(*)::int                                                 AS count,
+                    BOOL_OR(s.kind = 'MENTION_CREATED'
+                        AND s.payload->>'mentionedUserId' = :currentUserId)       AS you_mentioned,
+                    -- COMMENT_ADDED/MENTION_CREATED always have is_new_session=1, so each group has one row and MIN collapses to that row payload
+                    MIN(s.payload::text)::jsonb                                   AS payload
+                FROM sessions s
+                GROUP BY s.kind, s.actor_id, s.document_id, s.session_id
+            )
+            SELECT
+                ag.kind                                                AS kind,
+                ag.actor_id                                            AS actorId,
+                CASE
+                    WHEN u.first_name IS NOT NULL AND u.last_name IS NOT NULL
+                        THEN UPPER(LEFT(u.first_name, 1)) || UPPER(LEFT(u.last_name, 1))
+                    WHEN u.first_name IS NOT NULL THEN UPPER(LEFT(u.first_name, 1))
+                    WHEN u.last_name  IS NOT NULL THEN UPPER(LEFT(u.last_name, 1))
+                    ELSE '?'
+                END                                                    AS actorInitials,
+                COALESCE(u.color, '')                                  AS actorColor,
+                CONCAT_WS(' ', u.first_name, u.last_name)             AS actorName,
+                ag.document_id                                         AS documentId,
+                ag.happened_at                                         AS happened_at,
+                ag.you_mentioned                                       AS youMentioned,
+                -- payload->>'commentId' matches notifications.reference_id per AuditKind.COMMENT_ADDED contract
+                EXISTS(
+                    SELECT 1 FROM notifications n
+                    WHERE n.type = 'REPLY'
+                      AND n.recipient_id = CAST(:currentUserId AS uuid)
+                      AND n.reference_id = (ag.payload->>'commentId')::uuid
+                )                                                      AS youParticipated,
+                ag.count                                               AS count,
+                ag.happened_at_until                                   AS happenedAtUntil,
+                (ag.payload->>'commentId')::uuid                       AS commentId
+            FROM aggregated ag
+            LEFT JOIN app_users u ON u.id = ag.actor_id
+            ORDER BY ag.happened_at DESC
             LIMIT :limit
             """, nativeQuery = true)
-    List<ActivityFeedRow> findDedupedActivityFeed(
+    List<ActivityFeedRow> findRolledUpActivityFeed(
             @Param("currentUserId") String currentUserId,
-            @Param("limit") int limit);
+            @Param("limit") int limit,
+            @Param("kinds") Collection<String> kinds);
 
     @Query(value = """
             SELECT
@@ -98,7 +157,7 @@ public interface AuditLogQueryRepository extends JpaRepository<AuditLog, UUID> {
                 COALESCE(u.color, '')                                            AS actorColor,
                 CONCAT_WS(' ', u.first_name, u.last_name)                       AS actorName
             FROM audit_log a
-            LEFT JOIN users u ON u.id = a.actor_id
+            LEFT JOIN app_users u ON u.id = a.actor_id
             WHERE a.kind IN ('ANNOTATION_CREATED', 'TEXT_SAVED', 'BLOCK_REVIEWED')
               AND a.document_id IN :documentIds
               AND a.actor_id IS NOT NULL
@@ -106,4 +165,40 @@ public interface AuditLogQueryRepository extends JpaRepository<AuditLog, UUID> {
             ORDER BY a.document_id, MIN(a.happened_at)
             """, nativeQuery = true)
     List<ContributorRow> findContributorsPerDocument(@Param("documentIds") List<UUID> documentIds);
+
+    @Query(value = """
+            SELECT
+                ranked.document_id   AS documentId,
+                ranked.actorInitials AS actorInitials,
+                ranked.actorColor    AS actorColor,
+                ranked.actorName     AS actorName
+            FROM (
+                SELECT
+                    a.document_id,
+                    CASE
+                        WHEN u.first_name IS NOT NULL AND u.last_name IS NOT NULL
+                            THEN UPPER(LEFT(u.first_name, 1)) || UPPER(LEFT(u.last_name, 1))
+                        WHEN u.first_name IS NOT NULL THEN UPPER(LEFT(u.first_name, 1))
+                        WHEN u.last_name  IS NOT NULL THEN UPPER(LEFT(u.last_name, 1))
+                        ELSE '?'
+                    END                                                        AS actorInitials,
+                    COALESCE(u.color, '')                                      AS actorColor,
+                    NULLIF(CONCAT_WS(' ', u.first_name, u.last_name), '')     AS actorName,
+                    ROW_NUMBER() OVER (
+                        PARTITION BY a.document_id
+                        ORDER BY MAX(a.happened_at) DESC
+                    )                                                          AS rn
+                FROM audit_log a
+                LEFT JOIN app_users u ON u.id = a.actor_id
+                WHERE a.kind IN ('ANNOTATION_CREATED', 'TEXT_SAVED', 'BLOCK_REVIEWED')
+                  AND a.document_id IN :documentIds
+                  AND a.actor_id IS NOT NULL
+                GROUP BY a.document_id, a.actor_id, u.first_name, u.last_name, u.color
+            ) ranked
+            WHERE ranked.rn <= 4
+            ORDER BY ranked.document_id, ranked.rn
+            """, nativeQuery = true)
+    List<ContributorRow> findRecentContributorsForDocuments(@Param("documentIds") List<UUID> documentIds);
+
+    Page<AuditLog> findByKindIn(Collection<AuditKind> kinds, Pageable pageable);
 }

backend/src/main/java/org/raddatz/familienarchiv/audit/AuditLogQueryService.java

@@ -1,11 +1,17 @@
 package org.raddatz.familienarchiv.audit;
 
 import lombok.RequiredArgsConstructor;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Sort;
 import org.springframework.stereotype.Service;
 
 import java.time.OffsetDateTime;
 import java.util.*;
 
+import static org.raddatz.familienarchiv.audit.AuditKind.GROUP_MEMBERSHIP_CHANGED;
+import static org.raddatz.familienarchiv.audit.AuditKind.USER_CREATED;
+import static org.raddatz.familienarchiv.audit.AuditKind.USER_DELETED;
+
 @Service
 @RequiredArgsConstructor
 public class AuditLogQueryService {
@@ -17,7 +23,12 @@ public class AuditLogQueryService {
     }
 
     public List<ActivityFeedRow> findActivityFeed(UUID currentUserId, int limit) {
-        return queryRepository.findDedupedActivityFeed(currentUserId.toString(), limit);
+        return findActivityFeed(currentUserId, limit, AuditKind.ROLLUP_ELIGIBLE);
+    }
+
+    public List<ActivityFeedRow> findActivityFeed(UUID currentUserId, int limit, Set<AuditKind> kinds) {
+        List<String> kindNames = kinds.stream().map(Enum::name).toList();
+        return queryRepository.findRolledUpActivityFeed(currentUserId.toString(), limit, kindNames);
     }
 
     public PulseStatsRow getPulseStats(OffsetDateTime weekStart, UUID userId) {
@@ -38,7 +49,20 @@ public class AuditLogQueryService {
 
     public Map<UUID, List<ActivityActorDTO>> findContributorsPerDocument(List<UUID> documentIds) {
         if (documentIds.isEmpty()) return Map.of();
-        List<ContributorRow> rows = queryRepository.findContributorsPerDocument(documentIds);
+        return toContributorMap(queryRepository.findContributorsPerDocument(documentIds));
+    }
+
+    public Map<UUID, List<ActivityActorDTO>> findRecentContributorsPerDocument(List<UUID> documentIds) {
+        if (documentIds.isEmpty()) return Map.of();
+        return toContributorMap(queryRepository.findRecentContributorsForDocuments(documentIds));
+    }
+
+    public List<AuditLog> findRecentUserManagementEvents(int limit) {
+        PageRequest page = PageRequest.of(0, limit, Sort.by("happenedAt").descending());
+        return queryRepository.findByKindIn(Set.of(USER_CREATED, USER_DELETED, GROUP_MEMBERSHIP_CHANGED), page).getContent();
+    }
+
+    private Map<UUID, List<ActivityActorDTO>> toContributorMap(List<ContributorRow> rows) {
         Map<UUID, List<ActivityActorDTO>> result = new LinkedHashMap<>();
         for (ContributorRow row : rows) {
             result.computeIfAbsent(row.getDocumentId(), k -> new ArrayList<>())

backend/src/main/java/org/raddatz/familienarchiv/audit/AuditLogRepository.java

@@ -5,4 +5,5 @@ import org.springframework.data.jpa.repository.JpaRepository;
 import java.util.UUID;
 
 public interface AuditLogRepository extends JpaRepository<AuditLog, UUID> {
+    boolean existsByKind(AuditKind kind);
 }

backend/src/main/java/org/raddatz/familienarchiv/config/AsyncConfig.java

@@ -37,4 +37,19 @@ public class AsyncConfig {
         executor.setRejectedExecutionHandler(new ThreadPoolExecutor.AbortPolicy());
         return executor;
     }
+
+    @Bean("thumbnailExecutor")
+    public Executor thumbnailExecutor() {
+        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
+        executor.setCorePoolSize(1);
+        executor.setMaxPoolSize(2);
+        executor.setQueueCapacity(200);
+        executor.setThreadNamePrefix("Thumbnail-");
+        // CallerRunsPolicy applies back-pressure to quick-upload batches and admin backfill
+        // instead of dropping work (shared taskExecutor uses AbortPolicy). Safe because the
+        // task is dispatched via TransactionSynchronization.afterCommit, which runs on a
+        // post-commit callback thread without active transaction synchronization.
+        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
+        return executor;
+    }
 }

backend/src/main/java/org/raddatz/familienarchiv/dashboard/ActivityFeedItemDTO.java

@@ -14,5 +14,20 @@ public record ActivityFeedItemDTO(
         @Schema(requiredMode = Schema.RequiredMode.REQUIRED) UUID documentId,
         @Schema(requiredMode = Schema.RequiredMode.REQUIRED) String documentTitle,
         @Schema(requiredMode = Schema.RequiredMode.REQUIRED) OffsetDateTime happenedAt,
-        @Schema(requiredMode = Schema.RequiredMode.REQUIRED) boolean youMentioned
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED) boolean youMentioned,
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED) boolean youParticipated,
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED) int count,
+        @Nullable OffsetDateTime happenedAtUntil,
+        @Nullable
+        @Schema(
+                requiredMode = Schema.RequiredMode.NOT_REQUIRED,
+                description = "Deep-link target comment; populated only for COMMENT_ADDED and MENTION_CREATED kinds."
+        )
+        UUID commentId,
+        @Nullable
+        @Schema(
+                requiredMode = Schema.RequiredMode.NOT_REQUIRED,
+                description = "Annotation associated with the comment; populated only for COMMENT_ADDED and MENTION_CREATED kinds."
+        )
+        UUID annotationId
 ) {}

backend/src/main/java/org/raddatz/familienarchiv/dashboard/DashboardController.java

@@ -1,14 +1,19 @@
 package org.raddatz.familienarchiv.dashboard;
 
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.RequiredArgsConstructor;
+import org.raddatz.familienarchiv.audit.AuditKind;
 import org.raddatz.familienarchiv.security.Permission;
 import org.raddatz.familienarchiv.security.RequirePermission;
 import org.raddatz.familienarchiv.security.SecurityUtils;
-import org.raddatz.familienarchiv.service.UserService;
+import org.raddatz.familienarchiv.user.UserService;
 import org.springframework.security.core.Authentication;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
+import java.util.Set;
 import java.util.UUID;
 
 @RestController
@@ -35,8 +40,12 @@ public class DashboardController {
     @GetMapping("/activity")
     public List<ActivityFeedItemDTO> getActivity(
             Authentication authentication,
-            @RequestParam(defaultValue = "7") int limit) {
+            @RequestParam(defaultValue = "7") int limit,
+            @Parameter(description = "Filter by audit kinds; omit for all rollup-eligible kinds",
+                    array = @ArraySchema(schema = @Schema(implementation = AuditKind.class)))
+            @RequestParam(required = false) Set<AuditKind> kinds) {
         UUID userId = SecurityUtils.requireUserId(authentication, userService);
-        return dashboardService.getActivity(userId, Math.min(limit, 20));
+        Set<AuditKind> effectiveKinds = (kinds == null || kinds.isEmpty()) ? AuditKind.ROLLUP_ELIGIBLE : kinds;
+        return dashboardService.getActivity(userId, Math.min(limit, 40), effectiveKinds);
     }
 }

backend/src/main/java/org/raddatz/familienarchiv/dashboard/DashboardService.java

@@ -4,15 +4,17 @@ import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.raddatz.familienarchiv.audit.ActivityActorDTO;
 import org.raddatz.familienarchiv.audit.ActivityFeedRow;
+import org.raddatz.familienarchiv.audit.AuditKind;
 import org.raddatz.familienarchiv.audit.AuditLogQueryService;
 import org.raddatz.familienarchiv.audit.PulseStatsRow;
-import org.raddatz.familienarchiv.model.AppUser;
-import org.raddatz.familienarchiv.model.Document;
-import org.raddatz.familienarchiv.model.Person;
-import org.raddatz.familienarchiv.model.TranscriptionBlock;
-import org.raddatz.familienarchiv.service.DocumentService;
-import org.raddatz.familienarchiv.service.TranscriptionService;
-import org.raddatz.familienarchiv.service.UserService;
+import org.raddatz.familienarchiv.user.AppUser;
+import org.raddatz.familienarchiv.document.Document;
+import org.raddatz.familienarchiv.person.Person;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionBlock;
+import org.raddatz.familienarchiv.document.comment.CommentService;
+import org.raddatz.familienarchiv.document.DocumentService;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionService;
+import org.raddatz.familienarchiv.user.UserService;
 import org.springframework.stereotype.Service;
 
 import java.time.DayOfWeek;
@@ -32,6 +34,7 @@ public class DashboardService {
     private final DocumentService documentService;
     private final TranscriptionService transcriptionService;
     private final UserService userService;
+    private final CommentService commentService;
 
     public DashboardResumeDTO getResume(UUID userId) {
         Optional<UUID> docIdOpt = auditLogQueryService.findMostRecentDocumentForUser(userId);
@@ -79,7 +82,7 @@ public class DashboardService {
                 .toList();
 
         return new DashboardResumeDTO(docId, doc.getTitle(), caption, excerpt,
-                totalBlocks, pct, null, collaborators);
+                totalBlocks, pct, doc.getThumbnailUrl(), collaborators);
     }
 
     public DashboardPulseDTO getPulse(UUID userId) {
@@ -108,8 +111,8 @@ public class DashboardService {
         );
     }
 
-    public List<ActivityFeedItemDTO> getActivity(UUID currentUserId, int limit) {
-        List<ActivityFeedRow> rows = auditLogQueryService.findActivityFeed(currentUserId, limit);
+    public List<ActivityFeedItemDTO> getActivity(UUID currentUserId, int limit, Set<AuditKind> kinds) {
+        List<ActivityFeedRow> rows = auditLogQueryService.findActivityFeed(currentUserId, limit, kinds);
 
         List<UUID> docIds = rows.stream()
                 .map(ActivityFeedRow::getDocumentId)
@@ -125,18 +128,37 @@ public class DashboardService {
             log.warn("Activity: failed to bulk-load document titles", e);
         }
 
+        List<UUID> commentIds = rows.stream()
+                .map(ActivityFeedRow::getCommentId)
+                .filter(Objects::nonNull)
+                .distinct()
+                .toList();
+        Map<UUID, UUID> annotationByComment = commentIds.isEmpty()
+                ? Map.of()
+                : commentService.findAnnotationIdsByIds(commentIds);
+
         return rows.stream().map(row -> {
             ActivityActorDTO actor = row.getActorId() != null
                     ? new ActivityActorDTO(row.getActorInitials(), row.getActorColor(), row.getActorName())
                     : null;
             String docTitle = titleCache.getOrDefault(row.getDocumentId(), "");
+            OffsetDateTime happenedAtUntil = row.getHappenedAtUntil() != null
+                    ? row.getHappenedAtUntil().atOffset(ZoneOffset.UTC)
+                    : null;
+            UUID commentId = row.getCommentId();
+            UUID annotationId = commentId != null ? annotationByComment.get(commentId) : null;
             return new ActivityFeedItemDTO(
                     org.raddatz.familienarchiv.audit.AuditKind.valueOf(row.getKind()),
                     actor,
                     row.getDocumentId(),
                     docTitle,
                     row.getHappenedAt().atOffset(ZoneOffset.UTC),
-                    row.isYouMentioned()
+                    row.isYouMentioned(),
+                    row.isYouParticipated(),
+                    row.getCount(),
+                    happenedAtUntil,
+                    commentId,
+                    annotationId
             );
         }).toList();
     }

backend/src/main/java/org/raddatz/familienarchiv/dashboard/StatsController.java

@@ -1,25 +1,25 @@
-package org.raddatz.familienarchiv.controller;
+package org.raddatz.familienarchiv.dashboard;
 
-import org.raddatz.familienarchiv.dto.StatsDTO;
-import org.raddatz.familienarchiv.repository.DocumentRepository;
-import org.raddatz.familienarchiv.repository.PersonRepository;
+import lombok.RequiredArgsConstructor;
+import org.raddatz.familienarchiv.dashboard.StatsDTO;
+import org.raddatz.familienarchiv.security.Permission;
+import org.raddatz.familienarchiv.security.RequirePermission;
+import org.raddatz.familienarchiv.dashboard.StatsService;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
-import lombok.RequiredArgsConstructor;
-
 @RestController
 @RequestMapping("/api/stats")
 @RequiredArgsConstructor
 public class StatsController {
 
-    private final PersonRepository personRepository;
-    private final DocumentRepository documentRepository;
+    private final StatsService statsService;
 
+    @RequirePermission(Permission.READ_ALL)
     @GetMapping
     public ResponseEntity<StatsDTO> getStats() {
-        return ResponseEntity.ok(new StatsDTO(personRepository.count(), documentRepository.count()));
+        return ResponseEntity.ok(statsService.getStats());
     }
 }

backend/src/main/java/org/raddatz/familienarchiv/dashboard/StatsDTO.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.dashboard;
 
 /**
  * Aggregate counts for the dashboard/persons stats bar.

backend/src/main/java/org/raddatz/familienarchiv/dashboard/StatsService.java

@@ -0,0 +1,19 @@
+package org.raddatz.familienarchiv.dashboard;
+
+import lombok.RequiredArgsConstructor;
+import org.raddatz.familienarchiv.document.DocumentService;
+import org.raddatz.familienarchiv.person.PersonService;
+import org.raddatz.familienarchiv.dashboard.StatsDTO;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class StatsService {
+
+    private final PersonService personService;
+    private final DocumentService documentService;
+
+    public StatsDTO getStats() {
+        return new StatsDTO(personService.count(), documentService.count());
+    }
+}

backend/src/main/java/org/raddatz/familienarchiv/document/BackfillResult.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.document;
 
 import io.swagger.v3.oas.annotations.media.Schema;
 

backend/src/main/java/org/raddatz/familienarchiv/document/BatchMetadataRequest.java

@@ -0,0 +1,9 @@
+package org.raddatz.familienarchiv.document;
+
+import java.util.List;
+import java.util.UUID;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+public record BatchMetadataRequest(
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED) List<UUID> ids) {}

backend/src/main/java/org/raddatz/familienarchiv/document/BlockSource.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.model;
+package org.raddatz.familienarchiv.document;
 
 public enum BlockSource {
     MANUAL,

backend/src/main/java/org/raddatz/familienarchiv/document/BulkEditError.java

@@ -1,10 +1,9 @@
-package org.raddatz.familienarchiv.dto;
-
-import io.swagger.v3.oas.annotations.media.Schema;
+package org.raddatz.familienarchiv.document;
 
 import java.util.UUID;
 
-public record IncompleteDocumentDTO(
+import io.swagger.v3.oas.annotations.media.Schema;
+
+public record BulkEditError(
         @Schema(requiredMode = Schema.RequiredMode.REQUIRED) UUID id,
-        @Schema(requiredMode = Schema.RequiredMode.REQUIRED) String title
-) {}
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED) String message) {}

backend/src/main/java/org/raddatz/familienarchiv/document/BulkEditResult.java

@@ -0,0 +1,9 @@
+package org.raddatz.familienarchiv.document;
+
+import java.util.List;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+public record BulkEditResult(
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED) int updated,
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED) List<BulkEditError> errors) {}

backend/src/main/java/org/raddatz/familienarchiv/document/Document.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.model;
+package org.raddatz.familienarchiv.document;
 
 import jakarta.persistence.*;
 import lombok.*;
@@ -6,8 +6,15 @@ import org.hibernate.annotations.CreationTimestamp;
 import org.hibernate.annotations.UpdateTimestamp;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
 import io.swagger.v3.oas.annotations.media.Schema;
 
+import org.raddatz.familienarchiv.ocr.ScriptType;
+import org.raddatz.familienarchiv.ocr.TrainingLabel;
+import org.raddatz.familienarchiv.person.Person;
+import org.raddatz.familienarchiv.tag.Tag;
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.util.HashSet;
@@ -43,6 +50,20 @@ public class Document {
     @Column(name = "file_hash", length = 64)
     private String fileHash;
 
+    // S3 key of the generated thumbnail (e.g. "thumbnails/{docId}.jpg"); null until generated
+    @Column(name = "thumbnail_key")
+    private String thumbnailKey;
+
+    @Column(name = "thumbnail_generated_at")
+    private LocalDateTime thumbnailGeneratedAt;
+
+    @Enumerated(EnumType.STRING)
+    @Column(name = "thumbnail_aspect", length = 16)
+    private ThumbnailAspect thumbnailAspect;
+
+    @Column(name = "page_count")
+    private Integer pageCount;
+
     // Originaler Dateiname beim Upload (z.B. "Brief_Oma_1940.pdf")
     @Column(name = "original_filename", nullable = false)
     @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
@@ -117,4 +138,19 @@ public class Document {
     @Enumerated(EnumType.STRING)
     @Builder.Default
     private Set<TrainingLabel> trainingLabels = new HashSet<>();
+
+    // The `?v={thumbnailGeneratedAt}` cache-buster is load-bearing: the thumbnail
+    // endpoint sends `Cache-Control: private, max-age=31536000, immutable`
+    // (DocumentController.getDocumentThumbnail). `immutable` is only safe because
+    // this URL changes whenever the underlying file does. Dropping the query param
+    // would let browsers serve a stale thumbnail for a year after the file is
+    // replaced, and shared caches could leak one user's thumbnail to another
+    // (CWE-525).
+    @JsonProperty("thumbnailUrl")
+    public String getThumbnailUrl() {
+        if (thumbnailKey == null) return null;
+        String base = "/api/documents/" + id + "/thumbnail";
+        if (thumbnailGeneratedAt == null) return base;
+        return base + "?v=" + URLEncoder.encode(thumbnailGeneratedAt.toString(), StandardCharsets.UTF_8);
+    }
 }

backend/src/main/java/org/raddatz/familienarchiv/document/DocumentBatchMetadataDTO.java

@@ -0,0 +1,18 @@
+package org.raddatz.familienarchiv.document;
+
+import lombok.Data;
+
+import java.time.LocalDate;
+import java.util.List;
+import java.util.UUID;
+
+@Data
+public class DocumentBatchMetadataDTO {
+    private List<String> titles;
+    private UUID senderId;
+    private List<UUID> receiverIds;
+    private LocalDate documentDate;
+    private String location;
+    private List<String> tagNames;
+    private Boolean metadataComplete;
+}

backend/src/main/java/org/raddatz/familienarchiv/document/DocumentBatchSummary.java

@@ -0,0 +1,10 @@
+package org.raddatz.familienarchiv.document;
+
+import java.util.UUID;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+public record DocumentBatchSummary(
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED) UUID id,
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED) String title,
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED) String pdfUrl) {}

backend/src/main/java/org/raddatz/familienarchiv/document/DocumentBulkEditDTO.java

@@ -0,0 +1,60 @@
+package org.raddatz.familienarchiv.document;
+
+import java.util.List;
+import java.util.UUID;
+
+import jakarta.validation.constraints.Size;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+/**
+ * Request body for {@code PATCH /api/documents/bulk}. Field semantics:
+ * <ul>
+ *   <li>{@code tagNames} and {@code receiverIds} are <b>additive</b> —
+ *       merged into each document's existing set, never replacing it.</li>
+ *   <li>{@code senderId}, {@code documentLocation}, {@code archiveBox},
+ *       {@code archiveFolder} are <b>replace-on-non-blank</b> — null/blank
+ *       fields are skipped, anything else overwrites.</li>
+ * </ul>
+ *
+ * <p>Kept as a Lombok {@code @Data} POJO (not a record) for symmetry with
+ * the existing {@code DocumentUpdateDTO} and to keep test setup terse —
+ * the per-feature DTOs introduced alongside this one ({@link BulkEditError},
+ * {@link BulkEditResult}, {@link BatchMetadataRequest},
+ * {@link DocumentBatchSummary}) <i>are</i> records because they have no
+ * test-side mutation. Tracked in the cycle-1 review for follow-up.
+ *
+ * <p>Bean-validation caps below defend against payload-amplification: the
+ * 1 MiB SvelteKit proxy cap allows ~26k UUIDs through to the backend, and
+ * Jetty's default body limit is 8 MB. {@code @Size} guards catch malformed
+ * clients without depending on those outer bounds.
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class DocumentBulkEditDTO {
+
+    // No @Size cap here on purpose: the controller's BULK_EDIT_MAX_IDS check
+    // returns the typed BULK_EDIT_TOO_MANY_IDS error code, which the frontend
+    // maps to a localised "Maximal 500 …" message via Paraglide. A bean-
+    // validation @Size would short-circuit that with a generic VALIDATION_ERROR.
+    private List<UUID> documentIds;
+
+    @Size(max = 200, message = "tagNames must not exceed 200 entries")
+    private List<@Size(max = 200, message = "tagName must not exceed 200 chars") String> tagNames;
+
+    private UUID senderId;
+
+    @Size(max = 200, message = "receiverIds must not exceed 200 entries")
+    private List<UUID> receiverIds;
+
+    @Size(max = 255, message = "documentLocation must not exceed 255 chars")
+    private String documentLocation;
+
+    @Size(max = 255, message = "archiveBox must not exceed 255 chars")
+    private String archiveBox;
+
+    @Size(max = 255, message = "archiveFolder must not exceed 255 chars")
+    private String archiveFolder;
+}

backend/src/main/java/org/raddatz/familienarchiv/document/DocumentController.java

@@ -1,8 +1,9 @@
-package org.raddatz.familienarchiv.controller;
+package org.raddatz.familienarchiv.document;
 
 import java.io.IOException;
 import java.time.LocalDate;
 import java.util.ArrayList;
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
@@ -13,25 +14,38 @@ import java.util.UUID;
 
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
-import org.raddatz.familienarchiv.dto.DocumentSearchResult;
-import org.raddatz.familienarchiv.dto.DocumentUpdateDTO;
-import org.raddatz.familienarchiv.dto.TagOperator;
-import org.raddatz.familienarchiv.dto.DocumentVersionSummary;
+import jakarta.validation.Valid;
+import jakarta.validation.constraints.Max;
+import jakarta.validation.constraints.Min;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
+import org.springframework.validation.annotation.Validated;
+import org.raddatz.familienarchiv.document.BatchMetadataRequest;
+import org.raddatz.familienarchiv.document.BulkEditError;
+import org.raddatz.familienarchiv.document.BulkEditResult;
+import org.raddatz.familienarchiv.document.DocumentBatchMetadataDTO;
+import org.raddatz.familienarchiv.document.DocumentBatchSummary;
+import org.raddatz.familienarchiv.document.DocumentBulkEditDTO;
+import org.raddatz.familienarchiv.document.DocumentSearchResult;
+import org.raddatz.familienarchiv.document.DocumentUpdateDTO;
+import org.raddatz.familienarchiv.tag.TagOperator;
+import org.raddatz.familienarchiv.document.DocumentVersionSummary;
+import org.raddatz.familienarchiv.document.IncompleteDocumentDTO;
 import org.raddatz.familienarchiv.exception.DomainException;
 import org.raddatz.familienarchiv.exception.ErrorCode;
-import org.raddatz.familienarchiv.model.Document;
-import org.raddatz.familienarchiv.dto.DocumentSort;
-import org.raddatz.familienarchiv.model.DocumentStatus;
-import org.raddatz.familienarchiv.model.TrainingLabel;
-import org.raddatz.familienarchiv.model.DocumentVersion;
-import org.raddatz.familienarchiv.model.AppUser;
+import org.raddatz.familienarchiv.document.Document;
+import org.raddatz.familienarchiv.document.DocumentSort;
+import org.raddatz.familienarchiv.document.DocumentStatus;
+import org.raddatz.familienarchiv.ocr.TrainingLabel;
+import org.raddatz.familienarchiv.document.DocumentVersion;
+import org.raddatz.familienarchiv.user.AppUser;
 import org.raddatz.familienarchiv.security.Permission;
 import org.raddatz.familienarchiv.security.RequirePermission;
 import org.raddatz.familienarchiv.security.SecurityUtils;
-import org.raddatz.familienarchiv.service.DocumentService;
-import org.raddatz.familienarchiv.service.DocumentVersionService;
-import org.raddatz.familienarchiv.service.FileService;
-import org.raddatz.familienarchiv.service.UserService;
+import org.raddatz.familienarchiv.document.DocumentService;
+import org.raddatz.familienarchiv.document.DocumentVersionService;
+import org.raddatz.familienarchiv.filestorage.FileService;
+import org.raddatz.familienarchiv.user.UserService;
 import org.springframework.data.domain.Sort;
 import org.springframework.security.core.Authentication;
 import org.springframework.http.HttpHeaders;
@@ -61,6 +75,7 @@ import lombok.extern.slf4j.Slf4j;
 @RequestMapping("/api/documents")
 @RequiredArgsConstructor
 @Slf4j
+@Validated
 public class DocumentController {
 
     private final DocumentService documentService;
@@ -93,6 +108,31 @@ public class DocumentController {
         }
     }
 
+    // --- THUMBNAIL ---
+    @GetMapping("/{id}/thumbnail")
+    public ResponseEntity<InputStreamResource> getDocumentThumbnail(@PathVariable UUID id) {
+        Document doc = documentService.getDocumentById(id);
+
+        if (doc.getThumbnailKey() == null) {
+            throw DomainException.notFound(ErrorCode.FILE_NOT_FOUND, "No thumbnail for document: " + id);
+        }
+
+        try {
+            FileService.S3FileDownload download = fileService.downloadFile(doc.getThumbnailKey());
+            return ResponseEntity.ok()
+                    .contentType(MediaType.IMAGE_JPEG)
+                    // `private` (not `public`) prevents shared caches from serving one user's
+                    // thumbnail to another (CWE-525). `immutable` is safe because the URL
+                    // carries a ?v=<thumbnailGeneratedAt> cache-buster that changes whenever
+                    // the underlying file is replaced.
+                    .header(HttpHeaders.CACHE_CONTROL, "private, max-age=31536000, immutable")
+                    .body(download.resource());
+        } catch (FileService.StorageFileNotFoundException e) {
+            throw DomainException.notFound(ErrorCode.FILE_NOT_FOUND,
+                    "Thumbnail missing in storage: " + doc.getThumbnailKey());
+        }
+    }
+
     // --- METADATA ---
     @GetMapping("/{id}")
     public Document getDocument(@PathVariable UUID id) {
@@ -161,6 +201,7 @@ public class DocumentController {
     @RequirePermission(Permission.WRITE_ALL)
     public QuickUploadResult quickUpload(
             @RequestPart(value = "files", required = false) List<MultipartFile> files,
+            @RequestPart(value = "metadata", required = false) DocumentBatchMetadataDTO metadata,
             Authentication authentication) {
         List<Document> created = new ArrayList<>();
         List<Document> updated = new ArrayList<>();
@@ -170,14 +211,21 @@ public class DocumentController {
             return new QuickUploadResult(created, updated, errors);
         }
 
+        documentService.validateBatch(files.size(), metadata);
+
         UUID actorId = requireUserId(authentication);
-        for (MultipartFile file : files) {
+        long totalBytes = files.stream().mapToLong(MultipartFile::getSize).sum();
+
+        for (int i = 0; i < files.size(); i++) {
+            MultipartFile file = files.get(i);
             if (!ALLOWED_CONTENT_TYPES.contains(file.getContentType())) {
                 errors.add(new UploadError(file.getOriginalFilename(), "UNSUPPORTED_FILE_TYPE"));
                 continue;
             }
             try {
-                DocumentService.StoreResult result = documentService.storeDocument(file, actorId);
+                DocumentService.StoreResult result = metadata != null
+                        ? documentService.storeDocumentWithBatchMetadata(file, metadata, i, actorId)
+                        : documentService.storeDocument(file, actorId);
                 if (result.isNew()) {
                     created.add(result.document());
                 } else {
@@ -189,15 +237,123 @@ public class DocumentController {
             }
         }
 
+        log.info("quickUpload actor={} files={} totalBytes={} withMetadata={} created={} updated={} errors={}",
+                actorId, files.size(), totalBytes, metadata != null,
+                created.size(), updated.size(), errors.size());
+
         return new QuickUploadResult(created, updated, errors);
     }
 
+    // --- BULK EDIT ---
+
+    private static final int BULK_EDIT_MAX_IDS = 500;
+    /** Hard cap for {@code GET /api/documents/ids}: prevents an unfiltered
+     *  call from materialising the entire {@code documents} table into JSON.
+     *  Generous enough for real-world "Alle X editieren" against the family
+     *  archive's bounded scale (~1500 docs today, expected growth to ~5k). */
+    private static final int BULK_EDIT_FILTER_MAX_IDS = 5000;
+
+    @PatchMapping("/bulk")
+    @RequirePermission(Permission.WRITE_ALL)
+    public BulkEditResult patchBulk(
+            @RequestBody @Valid DocumentBulkEditDTO dto,
+            Authentication authentication) {
+        if (dto.getDocumentIds() == null || dto.getDocumentIds().isEmpty()) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "documentIds is required");
+        }
+        if (dto.getDocumentIds().size() > BULK_EDIT_MAX_IDS) {
+            throw DomainException.badRequest(ErrorCode.BULK_EDIT_TOO_MANY_IDS,
+                    "Maximum " + BULK_EDIT_MAX_IDS + " documents per request, got: " + dto.getDocumentIds().size());
+        }
+
+        UUID actorId = requireUserId(authentication);
+        int updated = 0;
+        List<BulkEditError> errors = new ArrayList<>();
+
+        // Dedupe duplicate document IDs while preserving submission order. A
+        // double-click on "Alle X editieren" would otherwise hit each document
+        // twice and inflate the `updated` count returned to the user.
+        LinkedHashSet<UUID> uniqueIds = new LinkedHashSet<>(dto.getDocumentIds());
+
+        for (UUID id : uniqueIds) {
+            try {
+                documentService.applyBulkEditToDocument(id, dto, actorId);
+                updated++;
+            } catch (DomainException e) {
+                errors.add(new BulkEditError(id, sanitizeForLog(e.getMessage())));
+            } catch (Exception e) {
+                errors.add(new BulkEditError(id, "Internal error"));
+                log.warn("Bulk edit failed for document {}: {}", id, sanitizeForLog(e.getMessage()));
+            }
+        }
+
+        log.info("bulkEdit actor={} documentIds={} unique={} updated={} errors={}",
+                actorId, dto.getDocumentIds().size(), uniqueIds.size(), updated, errors.size());
+
+        return new BulkEditResult(updated, errors);
+    }
+
+    /** CRLF strip for any log line interpolating a free-form string (e.g.
+     *  {@link Throwable#getMessage()}). Defends against CWE-117 log injection. */
+    private static String sanitizeForLog(String s) {
+        return s == null ? null : s.replaceAll("[\\r\\n]", "_");
+    }
+
+    @GetMapping("/ids")
+    @RequirePermission(Permission.WRITE_ALL)
+    public List<UUID> getDocumentIds(
+            @RequestParam(required = false) String q,
+            @RequestParam(required = false) LocalDate from,
+            @RequestParam(required = false) LocalDate to,
+            @RequestParam(required = false) UUID senderId,
+            @RequestParam(required = false) UUID receiverId,
+            @RequestParam(required = false, name = "tag") List<String> tags,
+            @RequestParam(required = false) String tagQ,
+            @RequestParam(required = false) DocumentStatus status,
+            @RequestParam(required = false) String tagOp,
+            Authentication authentication) {
+        TagOperator operator = "OR".equalsIgnoreCase(tagOp) ? TagOperator.OR : TagOperator.AND;
+        List<UUID> ids = documentService.findIdsForFilter(q, from, to, senderId, receiverId, tags, tagQ, status, operator);
+        if (ids.size() > BULK_EDIT_FILTER_MAX_IDS) {
+            throw DomainException.badRequest(ErrorCode.BULK_EDIT_TOO_MANY_IDS,
+                    "Filter matches " + ids.size() + " documents — refine filter (max " + BULK_EDIT_FILTER_MAX_IDS + ")");
+        }
+        UUID actorId = requireUserId(authentication);
+        log.info("documentIds actor={} matched={}", actorId, ids.size());
+        return ids;
+    }
+
+    @PostMapping(value = "/batch-metadata", consumes = MediaType.APPLICATION_JSON_VALUE)
+    @RequirePermission(Permission.READ_ALL)
+    public List<DocumentBatchSummary> batchMetadata(@RequestBody @Valid BatchMetadataRequest request, Authentication authentication) {
+        if (request == null || request.ids() == null || request.ids().isEmpty()) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "ids is required");
+        }
+        if (request.ids().size() > BULK_EDIT_MAX_IDS) {
+            throw DomainException.badRequest(ErrorCode.BULK_EDIT_TOO_MANY_IDS,
+                    "Maximum " + BULK_EDIT_MAX_IDS + " ids per request, got: " + request.ids().size());
+        }
+        UUID actorId = requireUserId(authentication);
+        log.info("batchMetadata actor={} ids={}", actorId, request.ids().size());
+        return documentService.batchMetadata(request.ids());
+    }
+
     @GetMapping("/incomplete-count")
+    @RequirePermission(Permission.WRITE_ALL)
     public Map<String, Long> getIncompleteCount() {
         return Map.of("count", documentService.getIncompleteCount());
     }
 
+    @GetMapping("/incomplete")
+    @RequirePermission(Permission.WRITE_ALL)
+    public List<IncompleteDocumentDTO> getIncomplete(
+            @Parameter(description = "Maximum number of results (server caps at 200)")
+            @RequestParam(defaultValue = "50") int size) {
+        return documentService.findIncompleteDocuments(Math.min(size, 200));
+    }
+
     @GetMapping("/incomplete/next")
+    @RequirePermission(Permission.WRITE_ALL)
     public ResponseEntity<Document> getNextIncomplete(@RequestParam UUID excludeId) {
         return documentService.findNextIncompleteDocument(excludeId)
                 .map(ResponseEntity::ok)
@@ -216,14 +372,20 @@ public class DocumentController {
             @Parameter(description = "Filter by document status") @RequestParam(required = false) DocumentStatus status,
             @Parameter(description = "Sort field") @RequestParam(required = false) DocumentSort sort,
             @Parameter(description = "Sort direction: ASC or DESC") @RequestParam(required = false, defaultValue = "DESC") String dir,
-            @Parameter(description = "Tag operator: AND (default) or OR") @RequestParam(required = false) String tagOp) {
+            @Parameter(description = "Tag operator: AND (default) or OR") @RequestParam(required = false) String tagOp,
+            // @Max on page guards against overflow when pageable.getOffset() is computed
+            // as page * size — Integer.MAX_VALUE * 50 would wrap to a negative long, which
+            // Hibernate cheerfully turns into an invalid SQL OFFSET.
+            @Parameter(description = "Page number (0-indexed)") @RequestParam(defaultValue = "0") @Min(0) @Max(100_000) int page,
+            @Parameter(description = "Page size (max 100)") @RequestParam(defaultValue = "50") @Min(1) @Max(100) int size) {
         if (!"ASC".equalsIgnoreCase(dir) && !"DESC".equalsIgnoreCase(dir)) {
             throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "dir must be ASC or DESC");
         }
         // tagOp is a raw String at the HTTP boundary; any value other than "OR" (case-insensitive)
         // defaults to AND, which matches the frontend default and keeps old clients working.
         TagOperator operator = "OR".equalsIgnoreCase(tagOp) ? TagOperator.OR : TagOperator.AND;
-        return ResponseEntity.ok(documentService.searchDocuments(q, from, to, senderId, receiverId, tags, tagQ, status, sort, dir, operator));
+        Pageable pageable = PageRequest.of(page, size);
+        return ResponseEntity.ok(documentService.searchDocuments(q, from, to, senderId, receiverId, tags, tagQ, status, sort, dir, operator, pageable));
     }
 
     // --- TRAINING LABELS ---

backend/src/main/java/org/raddatz/familienarchiv/document/DocumentRepository.java

@@ -1,7 +1,9 @@
-package org.raddatz.familienarchiv.repository;
+package org.raddatz.familienarchiv.document;
 
-import org.raddatz.familienarchiv.model.Document;
-import org.raddatz.familienarchiv.model.DocumentStatus;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionQueueProjection;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionWeeklyStatsProjection;
+import org.raddatz.familienarchiv.document.Document;
+import org.raddatz.familienarchiv.document.DocumentStatus;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.domain.Sort;
@@ -46,6 +48,8 @@ public interface DocumentRepository extends JpaRepository<Document, UUID>, JpaSp
 
     List<Document> findByFileHashIsNullAndFilePathIsNotNull();
 
+    List<Document> findByFilePathIsNotNullAndThumbnailKeyIsNull();
+
     @Query("SELECT d.id, d.title FROM Document d WHERE d.id IN :ids")
     List<Object[]> findIdAndTitleByIdIn(@Param("ids") Collection<UUID> ids);
 
@@ -85,7 +89,7 @@ public interface DocumentRepository extends JpaRepository<Document, UUID>, JpaSp
             SELECT d.id FROM documents d
             CROSS JOIN LATERAL (
                 SELECT CASE WHEN websearch_to_tsquery('german', :query)::text <> ''
-                            THEN to_tsquery('german', regexp_replace(
+                            THEN to_tsquery('simple', regexp_replace(
                                      websearch_to_tsquery('german', :query)::text,
                                      '''([^'']+)''',
                                      '''\\1'':*',
@@ -147,7 +151,7 @@ public interface DocumentRepository extends JpaRepository<Document, UUID>, JpaSp
             FROM documents d
             CROSS JOIN LATERAL (
                 SELECT CASE WHEN websearch_to_tsquery('german', :query)::text <> ''
-                            THEN to_tsquery('german', regexp_replace(
+                            THEN to_tsquery('simple', regexp_replace(
                                      websearch_to_tsquery('german', :query)::text,
                                      '''([^'']+)''',
                                      '''\\1'':*',

backend/src/main/java/org/raddatz/familienarchiv/document/DocumentSearchItem.java

@@ -0,0 +1,18 @@
+package org.raddatz.familienarchiv.document;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import org.raddatz.familienarchiv.audit.ActivityActorDTO;
+import org.raddatz.familienarchiv.document.Document;
+
+import java.util.List;
+
+public record DocumentSearchItem(
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+        Document document,
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+        SearchMatchData matchData,
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+        int completionPercentage,
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+        List<ActivityActorDTO> contributors
+) {}

backend/src/main/java/org/raddatz/familienarchiv/document/DocumentSearchResult.java

@@ -0,0 +1,38 @@
+package org.raddatz.familienarchiv.document;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import org.springframework.data.domain.Pageable;
+
+import java.util.List;
+
+public record DocumentSearchResult(
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+        List<DocumentSearchItem> items,
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+        long totalElements,
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+        int pageNumber,
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+        int pageSize,
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+        int totalPages
+) {
+    /**
+     * Single-page convenience factory used by empty-result shortcuts and by tests that
+     * don't care about paging. Treats the whole list as page 0 of itself.
+     */
+    public static DocumentSearchResult of(List<DocumentSearchItem> items) {
+        int size = items.size();
+        return new DocumentSearchResult(items, size, 0, size, size == 0 ? 0 : 1);
+    }
+
+    /**
+     * Paged factory used by the service when it has a real Pageable + full match count
+     * (e.g. from Spring's Page<T> or from an in-memory sort-then-slice).
+     */
+    public static DocumentSearchResult paged(List<DocumentSearchItem> slice, Pageable pageable, long totalElements) {
+        int pageSize = pageable.getPageSize();
+        int totalPages = pageSize == 0 ? 0 : (int) ((totalElements + pageSize - 1) / pageSize);
+        return new DocumentSearchResult(slice, totalElements, pageable.getPageNumber(), pageSize, totalPages);
+    }
+}

backend/src/main/java/org/raddatz/familienarchiv/document/DocumentService.java

@@ -1,29 +1,44 @@
-package org.raddatz.familienarchiv.service;
+package org.raddatz.familienarchiv.document;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 
+import org.raddatz.familienarchiv.audit.ActivityActorDTO;
 import org.raddatz.familienarchiv.audit.AuditKind;
+import org.raddatz.familienarchiv.audit.AuditLogQueryService;
 import org.raddatz.familienarchiv.audit.AuditService;
-import org.raddatz.familienarchiv.dto.DocumentSearchResult;
-import org.raddatz.familienarchiv.dto.DocumentSort;
-import org.raddatz.familienarchiv.dto.DocumentUpdateDTO;
-import org.raddatz.familienarchiv.dto.IncompleteDocumentDTO;
-import org.raddatz.familienarchiv.dto.MatchOffset;
-import org.raddatz.familienarchiv.dto.SearchMatchData;
-import org.raddatz.familienarchiv.dto.TagOperator;
-import org.raddatz.familienarchiv.model.Document;
-import org.raddatz.familienarchiv.model.DocumentStatus;
-import org.raddatz.familienarchiv.model.ScriptType;
-import org.raddatz.familienarchiv.model.TrainingLabel;
-import org.raddatz.familienarchiv.model.Person;
-import org.raddatz.familienarchiv.model.Tag;
-import org.raddatz.familienarchiv.repository.DocumentRepository;
+import org.raddatz.familienarchiv.document.DocumentBatchMetadataDTO;
+import org.raddatz.familienarchiv.document.DocumentBatchSummary;
+import org.raddatz.familienarchiv.document.DocumentBulkEditDTO;
+import org.raddatz.familienarchiv.document.DocumentSearchItem;
+import org.raddatz.familienarchiv.document.DocumentSearchResult;
+import org.raddatz.familienarchiv.document.DocumentSort;
+import org.raddatz.familienarchiv.document.DocumentUpdateDTO;
+import org.raddatz.familienarchiv.document.IncompleteDocumentDTO;
+import org.raddatz.familienarchiv.document.MatchOffset;
+import org.raddatz.familienarchiv.document.SearchMatchData;
+import org.raddatz.familienarchiv.document.annotation.AnnotationService;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionBlockQueryService;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionQueueProjection;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionWeeklyStatsProjection;
+import org.raddatz.familienarchiv.tag.TagOperator;
+import org.raddatz.familienarchiv.document.Document;
+import org.raddatz.familienarchiv.document.DocumentStatus;
+import org.raddatz.familienarchiv.ocr.ScriptType;
+import org.raddatz.familienarchiv.ocr.TrainingLabel;
+import org.raddatz.familienarchiv.person.Person;
+import org.raddatz.familienarchiv.tag.Tag;
+import org.raddatz.familienarchiv.document.DocumentRepository;
+import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
 import org.springframework.data.domain.Sort;
 import org.springframework.data.jpa.domain.Specification;
 import org.raddatz.familienarchiv.exception.DomainException;
 import org.raddatz.familienarchiv.exception.ErrorCode;
+import org.raddatz.familienarchiv.person.PersonService;
+import org.raddatz.familienarchiv.filestorage.FileService;
+import org.raddatz.familienarchiv.tag.TagService;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.StringUtils;
@@ -45,7 +60,7 @@ import java.util.Objects;
 import java.util.Optional;
 import java.util.Set;
 import java.util.UUID;
-import static org.raddatz.familienarchiv.repository.DocumentSpecifications.*;
+import static org.raddatz.familienarchiv.document.DocumentSpecifications.*;
 
 @Service
 @RequiredArgsConstructor
@@ -59,9 +74,48 @@ public class DocumentService {
     private final DocumentVersionService documentVersionService;
     private final AnnotationService annotationService;
     private final AuditService auditService;
+    private final TranscriptionBlockQueryService transcriptionBlockQueryService;
+    private final AuditLogQueryService auditLogQueryService;
+    private final ThumbnailAsyncRunner thumbnailAsyncRunner;
 
     public record StoreResult(Document document, boolean isNew) {}
 
+    public long count() {
+        return documentRepository.count();
+    }
+
+    public Optional<Document> findById(UUID id) {
+        return documentRepository.findById(id);
+    }
+
+    public List<Document> findForThumbnailBackfill() {
+        return documentRepository.findByFilePathIsNotNullAndThumbnailKeyIsNull();
+    }
+
+    public Optional<Document> findByOriginalFilename(String originalFilename) {
+        return documentRepository.findByOriginalFilename(originalFilename);
+    }
+
+    public Document save(Document doc) {
+        return documentRepository.save(doc);
+    }
+
+    public List<TranscriptionQueueProjection> findSegmentationQueue(int limit) {
+        return documentRepository.findSegmentationQueue(limit);
+    }
+
+    public List<TranscriptionQueueProjection> findTranscriptionQueue(int limit) {
+        return documentRepository.findTranscriptionQueue(limit);
+    }
+
+    public List<TranscriptionQueueProjection> findReadyToReadQueue(int limit) {
+        return documentRepository.findReadyToReadQueue(limit);
+    }
+
+    public TranscriptionWeeklyStatsProjection findWeeklyStats() {
+        return documentRepository.findWeeklyStats();
+    }
+
     public Map<UUID, String> findTitlesByIds(Collection<UUID> ids) {
         if (ids.isEmpty()) return Map.of();
         Map<UUID, String> titles = new HashMap<>();
@@ -120,9 +174,56 @@ public class DocumentService {
         if (wasPlaceholder) {
             auditService.logAfterCommit(AuditKind.FILE_UPLOADED, actorId, saved.getId(), null);
         }
+        thumbnailAsyncRunner.dispatchAfterCommit(saved.getId());
         return new StoreResult(saved, isNew);
     }
 
+    public void validateBatch(int fileCount, DocumentBatchMetadataDTO metadata) {
+        // 50-file hard cap keeps FormData requests at a manageable size and protects against runaway bulk uploads.
+        if (fileCount > 50) {
+            throw DomainException.badRequest(ErrorCode.BATCH_TOO_LARGE, "Batch exceeds maximum of 50 files per request");
+        }
+        if (metadata != null && metadata.getTitles() != null && metadata.getTitles().size() > fileCount) {
+            throw DomainException.badRequest(ErrorCode.VALIDATION_ERROR, "titles count must not exceed files count");
+        }
+    }
+
+    @Transactional
+    public StoreResult storeDocumentWithBatchMetadata(
+            MultipartFile file, DocumentBatchMetadataDTO metadata, int fileIndex, UUID actorId) throws IOException {
+        StoreResult base = storeDocument(file, actorId);
+        Document doc = applyBatchMetadata(base.document(), metadata, fileIndex);
+        return new StoreResult(documentRepository.save(doc), base.isNew());
+    }
+
+    private Document applyBatchMetadata(Document doc, DocumentBatchMetadataDTO metadata, int fileIndex) {
+        if (metadata.getTitles() != null && fileIndex < metadata.getTitles().size()) {
+            doc.setTitle(metadata.getTitles().get(fileIndex));
+        }
+        if (metadata.getSenderId() != null) {
+            doc.setSender(personService.getById(metadata.getSenderId()));
+        }
+        if (metadata.getReceiverIds() != null && !metadata.getReceiverIds().isEmpty()) {
+            doc.setReceivers(new HashSet<>(personService.getAllById(metadata.getReceiverIds())));
+        }
+        if (metadata.getDocumentDate() != null) {
+            doc.setDocumentDate(metadata.getDocumentDate());
+        }
+        if (metadata.getLocation() != null) {
+            doc.setLocation(metadata.getLocation());
+        }
+        if (metadata.getMetadataComplete() != null) {
+            doc.setMetadataComplete(metadata.getMetadataComplete());
+        }
+        if (metadata.getTagNames() != null && !metadata.getTagNames().isEmpty()) {
+            UUID docId = doc.getId();
+            updateDocumentTags(docId, metadata.getTagNames());
+            doc = documentRepository.findById(docId)
+                    .orElseThrow(() -> DomainException.notFound(ErrorCode.DOCUMENT_NOT_FOUND, "Not found after batch metadata: " + docId));
+        }
+        return doc;
+    }
+
     @Transactional
     public Document createDocument(DocumentUpdateDTO dto, MultipartFile file) throws IOException {
         String filename = (file != null && !file.isEmpty())
@@ -182,7 +283,8 @@ public class DocumentService {
         }
 
         // Datei
-        if (file != null && !file.isEmpty()) {
+        boolean fileUploaded = file != null && !file.isEmpty();
+        if (fileUploaded) {
             FileService.UploadResult upload = fileService.uploadFile(file, file.getOriginalFilename());
             doc.setFilePath(upload.s3Key());
             doc.setFileHash(upload.fileHash());
@@ -192,6 +294,9 @@ public class DocumentService {
 
         Document finalDoc = documentRepository.save(doc);
         documentVersionService.recordVersion(finalDoc);
+        if (fileUploaded) {
+            thumbnailAsyncRunner.dispatchAfterCommit(finalDoc.getId());
+        }
         return finalDoc;
     }
 
@@ -209,6 +314,8 @@ public class DocumentService {
         doc.setTranscription(dto.getTranscription());
         doc.setSummary(dto.getSummary());
         doc.setDocumentLocation(dto.getDocumentLocation());
+        doc.setArchiveBox(dto.getArchiveBox());
+        doc.setArchiveFolder(dto.getArchiveFolder());
 
         List<String> tags = new ArrayList<>();
         if (dto.getTags() != null && !dto.getTags().isBlank()) {
@@ -244,7 +351,8 @@ public class DocumentService {
         }
 
         // 4. Datei austauschen (nur wenn eine neue ausgewählt wurde)
-        if (newFile != null && !newFile.isEmpty()) {
+        boolean fileReplaced = newFile != null && !newFile.isEmpty();
+        if (fileReplaced) {
             FileService.UploadResult upload = fileService.uploadFile(newFile, newFile.getOriginalFilename());
             doc.setFilePath(upload.s3Key());
             doc.setFileHash(upload.fileHash());
@@ -263,26 +371,153 @@ public class DocumentService {
             auditService.logAfterCommit(AuditKind.METADATA_UPDATED, actorId, saved.getId(), null);
         }
 
+        if (fileReplaced) {
+            thumbnailAsyncRunner.dispatchAfterCommit(saved.getId());
+        }
+
         return saved;
     }
 
     public Document updateDocumentTags(UUID docId, List<String> tagNames) {
         Document doc = documentRepository.findById(docId)
                 .orElseThrow(() -> DomainException.notFound(ErrorCode.DOCUMENT_NOT_FOUND, "Document not found: " + docId));
+        doc.setTags(resolveTags(tagNames));
+        return documentRepository.save(doc);
+    }
 
-        Set<Tag> newTags = new HashSet<>();
-
+    /**
+     * Resolves a list of tag-name strings to {@link Tag} entities, trimming
+     * whitespace and skipping blank entries. Single source of truth for
+     * "name string → Tag" so the find-or-create policy stays consistent
+     * across single-doc updates ({@link #updateDocumentTags}), bulk edits
+     * ({@link #applyBulkEditToDocument}), and the upload-batch path
+     * ({@code applyBatchMetadata}).
+     */
+    private Set<Tag> resolveTags(List<String> tagNames) {
+        if (tagNames == null || tagNames.isEmpty()) return new HashSet<>();
+        Set<Tag> resolved = new HashSet<>();
         for (String name : tagNames) {
-            // Clean the string
             String cleanName = name.trim();
-            if (cleanName.isEmpty())
-                continue;
+            if (cleanName.isEmpty()) continue;
+            resolved.add(tagService.findOrCreate(cleanName));
+        }
+        return resolved;
+    }
 
-            newTags.add(tagService.findOrCreate(cleanName));
+    /**
+     * Returns all document IDs matching the given filter parameters, ignoring
+     * pagination. Used by the bulk-edit "Alle X editieren" fast path so the
+     * frontend can replace the selection with every match across pages in one
+     * round-trip.
+     */
+    @Transactional(readOnly = true)
+    public List<UUID> findIdsForFilter(String text, LocalDate from, LocalDate to, UUID sender, UUID receiver,
+                                       List<String> tags, String tagQ, DocumentStatus status, TagOperator tagOperator) {
+        boolean hasText = StringUtils.hasText(text);
+        List<UUID> rankedIds = null;
+        if (hasText) {
+            rankedIds = documentRepository.findRankedIdsByFts(text);
+            if (rankedIds.isEmpty()) return List.of();
         }
 
-        doc.setTags(newTags);
-        return documentRepository.save(doc);
+        Specification<Document> spec = buildSearchSpec(
+                hasText, rankedIds, from, to, sender, receiver, tags, tagQ, status, tagOperator);
+        return documentRepository.findAll(spec).stream().map(Document::getId).toList();
+    }
+
+    /**
+     * Single source of truth for the search Specification chain. Shared by
+     * {@link #searchDocuments} (paged + sorted) and {@link #findIdsForFilter}
+     * (uncapped, ID-only). Caller does its own FTS short-circuit when the
+     * full-text query returned no rows.
+     */
+    private Specification<Document> buildSearchSpec(boolean hasText, List<UUID> ftsIds,
+                                                    LocalDate from, LocalDate to,
+                                                    UUID sender, UUID receiver,
+                                                    List<String> tags, String tagQ,
+                                                    DocumentStatus status, TagOperator tagOperator) {
+        boolean useOrLogic = tagOperator == TagOperator.OR;
+        List<Set<UUID>> expandedTagSets = tagService.expandTagNamesToDescendantIdSets(tags);
+        Specification<Document> textSpec = hasText ? hasIds(ftsIds) : (root, query, cb) -> null;
+        return Specification.where(textSpec)
+                .and(isBetween(from, to))
+                .and(hasSender(sender))
+                .and(hasReceiver(receiver))
+                .and(hasTags(expandedTagSets, useOrLogic))
+                .and(hasTagPartial(tagQ))
+                .and(hasStatus(status));
+    }
+
+    /**
+     * Returns lightweight summaries (id, title, server PDF URL) for the given
+     * document IDs. Unknown IDs are silently dropped — the consumer is the
+     * bulk-edit page's left strip, where missing previews would already be
+     * obvious; surfacing them as errors here adds no value.
+     */
+    @Transactional(readOnly = true)
+    public List<DocumentBatchSummary> batchMetadata(List<UUID> ids) {
+        if (ids == null || ids.isEmpty()) return List.of();
+        return documentRepository.findAllById(ids).stream()
+                .map(d -> new DocumentBatchSummary(
+                        d.getId(),
+                        d.getTitle() != null ? d.getTitle() : d.getOriginalFilename(),
+                        "/api/documents/" + d.getId() + "/file"))
+                .toList();
+    }
+
+    /**
+     * Applies a bulk-edit DTO to a single document atomically.
+     * Tags and receivers are additive (merged into existing sets); sender and the
+     * three location fields are replace-on-non-blank (null/blank means "no change").
+     * Wrapped in its own transaction so a failure on one document never partially
+     * mutates another in the controller's batch loop.
+     *
+     * Each successful update emits a {@link AuditKind#METADATA_UPDATED} audit
+     * event tagged {@code source=BULK_EDIT} and writes a row to
+     * {@code document_versions} so the family archive's "who changed what"
+     * trail stays complete across both single- and bulk-doc edit paths.
+     *
+     * NOTE on N+1: tag and person resolution happens per-document. With 500
+     * documents × 10 tags this fans out to ~5000 tag-resolve queries per
+     * request. Acceptable today because the family archive is bounded at
+     * ~1500 documents total. Tracked as a perf follow-up.
+     */
+    @Transactional
+    public Document applyBulkEditToDocument(UUID id, DocumentBulkEditDTO dto, UUID actorId) {
+        Document doc = documentRepository.findById(id)
+                .orElseThrow(() -> DomainException.notFound(ErrorCode.DOCUMENT_NOT_FOUND, "Document not found: " + id));
+
+        if (dto.getTagNames() != null && !dto.getTagNames().isEmpty()) {
+            Set<Tag> merged = new HashSet<>(doc.getTags());
+            merged.addAll(resolveTags(dto.getTagNames()));
+            doc.setTags(merged);
+        }
+
+        if (dto.getSenderId() != null) {
+            doc.setSender(personService.getById(dto.getSenderId()));
+        }
+
+        if (dto.getReceiverIds() != null && !dto.getReceiverIds().isEmpty()) {
+            Set<Person> merged = new HashSet<>(doc.getReceivers());
+            merged.addAll(personService.getAllById(dto.getReceiverIds()));
+            doc.setReceivers(merged);
+        }
+
+        if (StringUtils.hasText(dto.getDocumentLocation())) {
+            doc.setDocumentLocation(dto.getDocumentLocation());
+        }
+        if (StringUtils.hasText(dto.getArchiveBox())) {
+            doc.setArchiveBox(dto.getArchiveBox());
+        }
+        if (StringUtils.hasText(dto.getArchiveFolder())) {
+            doc.setArchiveFolder(dto.getArchiveFolder());
+        }
+
+        Document saved = documentRepository.save(doc);
+        documentVersionService.recordVersion(saved);
+        auditService.logAfterCommit(AuditKind.METADATA_UPDATED, actorId, saved.getId(),
+                Map.of("source", "BULK_EDIT"));
+        return saved;
     }
 
     /**
@@ -324,6 +559,7 @@ public class DocumentService {
         }
         Document saved = documentRepository.save(doc);
         documentVersionService.recordVersion(saved);
+        thumbnailAsyncRunner.dispatchAfterCommit(saved.getId());
         if (wasPlaceholder) {
             auditService.logAfterCommit(AuditKind.FILE_UPLOADED, actorId, saved.getId(), null);
         }
@@ -338,38 +574,30 @@ public class DocumentService {
     }
 
     // 1. Allgemeine Suche (für das Suchfeld im Frontend)
-    public DocumentSearchResult searchDocuments(String text, LocalDate from, LocalDate to, UUID sender, UUID receiver, List<String> tags, String tagQ, DocumentStatus status, DocumentSort sort, String dir, TagOperator tagOperator) {
+    public DocumentSearchResult searchDocuments(String text, LocalDate from, LocalDate to, UUID sender, UUID receiver, List<String> tags, String tagQ, DocumentStatus status, DocumentSort sort, String dir, TagOperator tagOperator, Pageable pageable) {
         boolean hasText = StringUtils.hasText(text);
         List<UUID> rankedIds = null;
 
         if (hasText) {
             rankedIds = documentRepository.findRankedIdsByFts(text);
-            if (rankedIds.isEmpty()) return DocumentSearchResult.withMatchData(List.of(), Map.of());
+            if (rankedIds.isEmpty()) return DocumentSearchResult.of(List.of());
         }
 
-        boolean useOrLogic = tagOperator == TagOperator.OR;
-        List<Set<UUID>> expandedTagSets = tagService.expandTagNamesToDescendantIdSets(tags);
+        Specification<Document> spec = buildSearchSpec(
+                hasText, rankedIds, from, to, sender, receiver, tags, tagQ, status, tagOperator);
 
-        Specification<Document> textSpec = hasText ? hasIds(rankedIds) : (root, query, cb) -> null;
-        Specification<Document> spec = Specification.where(textSpec)
-                .and(isBetween(from, to))
-                .and(hasSender(sender))
-                .and(hasReceiver(receiver))
-                .and(hasTags(expandedTagSets, useOrLogic))
-                .and(hasTagPartial(tagQ))
-                .and(hasStatus(status));
-
-        // SENDER and RECEIVER are sorted in-memory because JPA's Sort.by("sender.lastName")
-        // generates an INNER JOIN that silently drops documents with null sender/receivers.
+        // SENDER, RECEIVER and RELEVANCE sorts load the full match set and slice in memory.
+        // JPA's Sort.by("sender.lastName") generates an INNER JOIN that silently drops
+        // documents with null sender/receivers; RELEVANCE maps a DB order to an external
+        // rank list. Cost scales linearly with match count — acceptable while documents
+        // stays under ~10k rows. Past that, replace with SQL-level LEFT JOIN sort.
         if (sort == DocumentSort.RECEIVER) {
-            List<Document> results = documentRepository.findAll(spec);
-            List<Document> sorted = sortByFirstReceiver(results, dir);
-            return DocumentSearchResult.withMatchData(resolveDocumentTagColors(sorted), enrichWithMatchData(sorted, text));
+            List<Document> sorted = sortByFirstReceiver(documentRepository.findAll(spec), dir);
+            return buildResultPaged(pageSlice(sorted, pageable), text, pageable, sorted.size());
         }
         if (sort == DocumentSort.SENDER) {
-            List<Document> results = documentRepository.findAll(spec);
-            List<Document> sorted = sortBySender(results, dir);
-            return DocumentSearchResult.withMatchData(resolveDocumentTagColors(sorted), enrichWithMatchData(sorted, text));
+            List<Document> sorted = sortBySender(documentRepository.findAll(spec), dir);
+            return buildResultPaged(pageSlice(sorted, pageable), text, pageable, sorted.size());
         }
 
         // RELEVANCE: default when text present and no explicit sort given
@@ -382,12 +610,43 @@ public class DocumentService {
                     .sorted(Comparator.comparingInt(
                             doc -> rankMap.getOrDefault(doc.getId(), Integer.MAX_VALUE)))
                     .toList();
-            return DocumentSearchResult.withMatchData(resolveDocumentTagColors(sorted), enrichWithMatchData(sorted, text));
+            return buildResultPaged(pageSlice(sorted, pageable), text, pageable, sorted.size());
         }
 
-        Sort springSort = resolveSort(sort, dir);
-        List<Document> results = documentRepository.findAll(spec, springSort);
-        return DocumentSearchResult.withMatchData(resolveDocumentTagColors(results), enrichWithMatchData(results, text));
+        // Fast path — push sort + paging into the DB and enrich only the returned slice.
+        PageRequest pageRequest = PageRequest.of(pageable.getPageNumber(), pageable.getPageSize(), resolveSort(sort, dir));
+        Page<Document> page = documentRepository.findAll(spec, pageRequest);
+        return buildResultPaged(page.getContent(), text, pageable, page.getTotalElements());
+    }
+
+    private static <T> List<T> pageSlice(List<T> sorted, Pageable pageable) {
+        int from = Math.min((int) pageable.getOffset(), sorted.size());
+        int to = Math.min(from + pageable.getPageSize(), sorted.size());
+        return sorted.subList(from, to);
+    }
+
+    private DocumentSearchResult buildResultPaged(List<Document> slice, String text, Pageable pageable, long totalElements) {
+        return DocumentSearchResult.paged(enrichItems(slice, text), pageable, totalElements);
+    }
+
+    private List<DocumentSearchItem> enrichItems(List<Document> documents, String text) {
+        List<Document> colorResolved = resolveDocumentTagColors(documents);
+        Map<UUID, SearchMatchData> matchData = enrichWithMatchData(colorResolved, text);
+
+        List<UUID> docIds = colorResolved.stream().map(Document::getId).toList();
+        Map<UUID, Integer> completionByDoc = fetchCompletionPercentages(docIds);
+        Map<UUID, List<ActivityActorDTO>> contributorsByDoc = auditLogQueryService.findRecentContributorsPerDocument(docIds);
+
+        return colorResolved.stream().map(doc -> new DocumentSearchItem(
+                doc,
+                matchData.getOrDefault(doc.getId(), SearchMatchData.empty()),
+                completionByDoc.getOrDefault(doc.getId(), 0),
+                contributorsByDoc.getOrDefault(doc.getId(), List.of())
+        )).toList();
+    }
+
+    private Map<UUID, Integer> fetchCompletionPercentages(List<UUID> docIds) {
+        return transcriptionBlockQueryService.getCompletionStats(docIds);
     }
 
     private Sort resolveSort(DocumentSort sort, String dir) {
@@ -517,7 +776,7 @@ public class DocumentService {
         PageRequest pageable = PageRequest.of(0, size, Sort.by(Sort.Direction.DESC, "createdAt"));
         return documentRepository.findByMetadataCompleteFalse(pageable)
                 .stream()
-                .map(doc -> new IncompleteDocumentDTO(doc.getId(), doc.getTitle()))
+                .map(doc -> new IncompleteDocumentDTO(doc.getId(), doc.getTitle(), doc.getCreatedAt()))
                 .toList();
     }
 

backend/src/main/java/org/raddatz/familienarchiv/document/DocumentSort.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.document;
 
 public enum DocumentSort {
     DATE, TITLE, SENDER, RECEIVER, UPLOAD_DATE, RELEVANCE

backend/src/main/java/org/raddatz/familienarchiv/document/DocumentSpecifications.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.repository;
+package org.raddatz.familienarchiv.document;
 
 import jakarta.persistence.criteria.*;
 import java.time.LocalDate;
@@ -7,9 +7,9 @@ import java.util.List;
 import java.util.Set;
 import java.util.UUID;
 
-import org.raddatz.familienarchiv.model.Document;
-import org.raddatz.familienarchiv.model.DocumentStatus;
-import org.raddatz.familienarchiv.model.Tag;
+import org.raddatz.familienarchiv.document.Document;
+import org.raddatz.familienarchiv.document.DocumentStatus;
+import org.raddatz.familienarchiv.tag.Tag;
 import org.springframework.data.jpa.domain.Specification;
 import org.springframework.util.StringUtils;
 

backend/src/main/java/org/raddatz/familienarchiv/document/DocumentStatus.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.model;
+package org.raddatz.familienarchiv.document;
 
 public enum DocumentStatus {
     PLACEHOLDER, // Durch Excel angelegt, aber Datei fehlt noch

backend/src/main/java/org/raddatz/familienarchiv/document/DocumentUpdateDTO.java

@@ -1,11 +1,11 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.document;
 
 import java.time.LocalDate;
 import java.util.List;
 import java.util.UUID;
 
 import lombok.Data;
-import org.raddatz.familienarchiv.model.ScriptType;
+import org.raddatz.familienarchiv.ocr.ScriptType;
 
 @Data
 public class DocumentUpdateDTO {
@@ -13,6 +13,8 @@ public class DocumentUpdateDTO {
     private LocalDate documentDate;
     private String location;
     private String documentLocation;
+    private String archiveBox;
+    private String archiveFolder;
     private String transcription;
     private String summary;
     private UUID senderId;

backend/src/main/java/org/raddatz/familienarchiv/document/DocumentVersion.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.model;
+package org.raddatz.familienarchiv.document;
 
 import jakarta.persistence.*;
 import lombok.*;

backend/src/main/java/org/raddatz/familienarchiv/document/DocumentVersionRepository.java

@@ -1,6 +1,6 @@
-package org.raddatz.familienarchiv.repository;
+package org.raddatz.familienarchiv.document;
 
-import org.raddatz.familienarchiv.model.DocumentVersion;
+import org.raddatz.familienarchiv.document.DocumentVersion;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 

backend/src/main/java/org/raddatz/familienarchiv/document/DocumentVersionService.java

@@ -1,18 +1,19 @@
-package org.raddatz.familienarchiv.service;
+package org.raddatz.familienarchiv.document;
 
 import tools.jackson.core.type.TypeReference;
 import tools.jackson.databind.ObjectMapper;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.raddatz.familienarchiv.dto.DocumentVersionSummary;
+import org.raddatz.familienarchiv.document.DocumentVersionSummary;
 import org.raddatz.familienarchiv.exception.DomainException;
 import org.raddatz.familienarchiv.exception.ErrorCode;
-import org.raddatz.familienarchiv.model.AppUser;
-import org.raddatz.familienarchiv.model.Document;
-import org.raddatz.familienarchiv.model.DocumentVersion;
-import org.raddatz.familienarchiv.model.Person;
-import org.raddatz.familienarchiv.model.Tag;
-import org.raddatz.familienarchiv.repository.DocumentVersionRepository;
+import org.raddatz.familienarchiv.user.AppUser;
+import org.raddatz.familienarchiv.user.UserService;
+import org.raddatz.familienarchiv.document.Document;
+import org.raddatz.familienarchiv.document.DocumentVersion;
+import org.raddatz.familienarchiv.person.Person;
+import org.raddatz.familienarchiv.tag.Tag;
+import org.raddatz.familienarchiv.document.DocumentVersionRepository;
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.stereotype.Service;

backend/src/main/java/org/raddatz/familienarchiv/document/DocumentVersionSummary.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.document;
 
 import io.swagger.v3.oas.annotations.media.Schema;
 

backend/src/main/java/org/raddatz/familienarchiv/document/IncompleteDocumentDTO.java

@@ -0,0 +1,12 @@
+package org.raddatz.familienarchiv.document;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+public record IncompleteDocumentDTO(
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED) UUID id,
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED) String title,
+        @Schema(requiredMode = Schema.RequiredMode.REQUIRED) LocalDateTime uploadedAt
+) {}

backend/src/main/java/org/raddatz/familienarchiv/document/MatchOffset.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.document;
 
 import io.swagger.v3.oas.annotations.media.Schema;
 

backend/src/main/java/org/raddatz/familienarchiv/document/SearchMatchData.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.document;
 
 import io.swagger.v3.oas.annotations.media.Schema;
 

backend/src/main/java/org/raddatz/familienarchiv/document/ThumbnailAspect.java

@@ -0,0 +1,6 @@
+package org.raddatz.familienarchiv.document;
+
+public enum ThumbnailAspect {
+    PORTRAIT,
+    LANDSCAPE
+}

backend/src/main/java/org/raddatz/familienarchiv/document/ThumbnailAsyncRunner.java

@@ -0,0 +1,91 @@
+package org.raddatz.familienarchiv.document;
+
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.raddatz.familienarchiv.document.Document;
+import org.springframework.scheduling.annotation.Async;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.support.TransactionSynchronization;
+import org.springframework.transaction.support.TransactionSynchronizationManager;
+
+import java.util.Optional;
+import java.util.UUID;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+/**
+ * Bridges document upload paths to asynchronous thumbnail generation. Use
+ * {@link #dispatchAfterCommit(UUID)} from inside {@code @Transactional} service methods —
+ * it registers a post-commit hook so the async task only fires when the surrounding
+ * transaction actually commits, and is silently skipped on rollback. Mirrors
+ * {@link org.raddatz.familienarchiv.audit.AuditService#logAfterCommit}.
+ */
+@Service
+@RequiredArgsConstructor
+@Slf4j
+public class ThumbnailAsyncRunner {
+
+    private final DocumentRepository documentRepository;
+    private final ThumbnailService thumbnailService;
+
+    /** Per-document timeout for the whole generate() call — defense against corrupt PDFs. */
+    private long generateTimeoutSeconds = 30L;
+
+    /**
+     * Registers a post-commit hook that triggers asynchronous thumbnail generation for the
+     * given document. When no transaction is active the task is dispatched immediately.
+     * Safe to call from inside {@code @Transactional} service methods.
+     */
+    public void dispatchAfterCommit(UUID documentId) {
+        if (TransactionSynchronizationManager.isSynchronizationActive()) {
+            TransactionSynchronizationManager.registerSynchronization(new TransactionSynchronization() {
+                @Override
+                public void afterCommit() {
+                    generateAsync(documentId);
+                }
+            });
+        } else {
+            generateAsync(documentId);
+        }
+    }
+
+    /**
+     * Runs thumbnail generation on the {@code thumbnailExecutor} pool, wrapped in a watchdog
+     * timeout so a hung PDFBox render cannot occupy a pool thread indefinitely. Never throws:
+     * all errors and timeouts are logged and swallowed so upload paths are not affected.
+     */
+    @Async("thumbnailExecutor")
+    public void generateAsync(UUID documentId) {
+        Optional<Document> docOpt = documentRepository.findById(documentId);
+        if (docOpt.isEmpty()) {
+            log.warn("Thumbnail generation skipped: document not found id={}", documentId);
+            return;
+        }
+        Document doc = docOpt.get();
+
+        ExecutorService timeoutWorker = Executors.newSingleThreadExecutor(r -> {
+            Thread t = new Thread(r, "Thumbnail-Render-" + documentId);
+            t.setDaemon(true);
+            return t;
+        });
+        try {
+            Future<ThumbnailService.Outcome> future = timeoutWorker.submit(
+                    () -> thumbnailService.generate(doc));
+            try {
+                future.get(generateTimeoutSeconds, TimeUnit.SECONDS);
+            } catch (TimeoutException e) {
+                future.cancel(true);
+                log.warn("Thumbnail generation timed out after {}s for doc={}",
+                        generateTimeoutSeconds, documentId);
+            } catch (Exception e) {
+                log.warn("Thumbnail generation errored for doc={} reason={}",
+                        documentId, e.getMessage());
+            }
+        } finally {
+            timeoutWorker.shutdownNow();
+        }
+    }
+}

backend/src/main/java/org/raddatz/familienarchiv/document/ThumbnailBackfillService.java

@@ -0,0 +1,103 @@
+package org.raddatz.familienarchiv.document;
+
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.raddatz.familienarchiv.exception.DomainException;
+import org.raddatz.familienarchiv.exception.ErrorCode;
+import org.raddatz.familienarchiv.document.Document;
+import org.springframework.scheduling.annotation.Async;
+import org.springframework.stereotype.Service;
+
+import java.time.Duration;
+import java.time.LocalDateTime;
+import java.util.List;
+
+/**
+ * Sequentially regenerates thumbnails for documents that have a file attached but no
+ * thumbnail yet. Runs on the {@code thumbnailExecutor} pool — single-threaded iteration
+ * is intentional: PDFBox + ImageIO are memory-heavy and we cap peak usage by processing
+ * documents one at a time. Only one backfill can run at a time; concurrent starts are
+ * rejected with {@link ErrorCode#THUMBNAIL_BACKFILL_ALREADY_RUNNING}.
+ */
+@Service
+@RequiredArgsConstructor
+@Slf4j
+public class ThumbnailBackfillService {
+
+    public enum State { IDLE, RUNNING, DONE, FAILED }
+
+    public record BackfillStatus(
+            State state,
+            String message,
+            int total,
+            int processed,
+            int skipped,
+            int failed,
+            LocalDateTime startedAt
+    ) {}
+
+    private final DocumentService documentService;
+    private final ThumbnailService thumbnailService;
+
+    private volatile BackfillStatus currentStatus = new BackfillStatus(
+            State.IDLE, "Kein Backfill gestartet.", 0, 0, 0, 0, null);
+
+    public BackfillStatus getStatus() {
+        return currentStatus;
+    }
+
+    @Async("thumbnailExecutor")
+    public void runBackfillAsync() {
+        if (currentStatus.state() == State.RUNNING) {
+            throw DomainException.conflict(ErrorCode.THUMBNAIL_BACKFILL_ALREADY_RUNNING,
+                    "Thumbnail-Backfill läuft bereits");
+        }
+
+        LocalDateTime startedAt = LocalDateTime.now();
+        List<Document> docs;
+        try {
+            docs = documentService.findForThumbnailBackfill();
+        } catch (Exception e) {
+            currentStatus = new BackfillStatus(State.FAILED,
+                    "Backfill fehlgeschlagen: " + e.getMessage(),
+                    0, 0, 0, 0, startedAt);
+            log.warn("Thumbnail backfill aborted before starting: {}", e.getMessage());
+            return;
+        }
+
+        int total = docs.size();
+        currentStatus = new BackfillStatus(State.RUNNING,
+                "Backfill läuft…", total, 0, 0, 0, startedAt);
+        log.info("Thumbnail backfill started: total={}", total);
+
+        int processed = 0;
+        int skipped = 0;
+        int failed = 0;
+        for (Document doc : docs) {
+            ThumbnailService.Outcome outcome;
+            try {
+                outcome = thumbnailService.generate(doc);
+            } catch (Exception e) {
+                log.warn("Thumbnail generation failed for doc={} reason={}",
+                        doc.getId(), e.getMessage());
+                outcome = ThumbnailService.Outcome.FAILED;
+            }
+            switch (outcome) {
+                case SUCCESS -> processed++;
+                case SKIPPED -> skipped++;
+                case FAILED -> failed++;
+            }
+            currentStatus = new BackfillStatus(State.RUNNING,
+                    "Backfill läuft…", total, processed, skipped, failed, startedAt);
+        }
+
+        long durationMs = Duration.between(startedAt, LocalDateTime.now()).toMillis();
+        log.info("Thumbnail backfill complete: total={} processed={} skipped={} failed={} durationMs={}",
+                total, processed, skipped, failed, durationMs);
+
+        currentStatus = new BackfillStatus(State.DONE,
+                String.format("Fertig: %d erzeugt, %d übersprungen, %d fehlgeschlagen.",
+                        processed, skipped, failed),
+                total, processed, skipped, failed, startedAt);
+    }
+}

backend/src/main/java/org/raddatz/familienarchiv/document/ThumbnailService.java

@@ -0,0 +1,233 @@
+package org.raddatz.familienarchiv.document;
+
+import lombok.extern.slf4j.Slf4j;
+import org.apache.pdfbox.Loader;
+import org.apache.pdfbox.io.RandomAccessReadBuffer;
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.rendering.ImageType;
+import org.apache.pdfbox.rendering.PDFRenderer;
+import org.raddatz.familienarchiv.document.Document;
+import org.raddatz.familienarchiv.document.ThumbnailAspect;
+import org.raddatz.familienarchiv.filestorage.FileService;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import software.amazon.awssdk.core.sync.RequestBody;
+import software.amazon.awssdk.services.s3.S3Client;
+import software.amazon.awssdk.services.s3.model.PutObjectRequest;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageIO;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.ImageWriter;
+import javax.imageio.stream.ImageOutputStream;
+import java.awt.Graphics2D;
+import java.awt.RenderingHints;
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.time.LocalDateTime;
+import java.util.Set;
+import java.util.UUID;
+
+/**
+ * Generates JPEG thumbnail previews for documents (PDF first-page or scaled-down image)
+ * and uploads them to the S3 thumbnails/ prefix. Fire-and-forget from upload paths via
+ * {@link ThumbnailAsyncRunner}; also invoked by {@link ThumbnailBackfillService} for
+ * historical documents. Explicitly does not throw — failures are returned as
+ * {@link Outcome#FAILED} so the backfill can account for them without aborting the run.
+ */
+@Service
+@Slf4j
+public class ThumbnailService {
+
+    public enum Outcome { SUCCESS, SKIPPED, FAILED }
+
+    private static final int THUMBNAIL_WIDTH = 240;
+    private static final float JPEG_QUALITY = 0.85f;
+    private static final int PDF_RENDER_DPI = 100;
+    // Anything below this w/h ratio stays PORTRAIT — near-square A4 scans should
+    // render in the portrait tile rather than flipping to landscape at 1.01.
+    private static final float LANDSCAPE_THRESHOLD = 1.1f;
+    private static final String PDF_CONTENT_TYPE = "application/pdf";
+    private static final Set<String> IMAGE_CONTENT_TYPES =
+            Set.of("image/jpeg", "image/png", "image/tiff");
+
+    // Deterministic S3 key — `thumbnails/{docId}.jpg`. When a document's file is replaced
+    // the regenerated thumbnail overwrites this same key via PutObject, so we never
+    // orphan old thumbnails. The URL-level cache buster is the `thumbnail_generated_at`
+    // timestamp (see /api/documents/{id}/thumbnail ?v= param).
+    private static final String THUMBNAIL_KEY_PREFIX = "thumbnails/";
+    private static final String THUMBNAIL_KEY_SUFFIX = ".jpg";
+
+    private final FileService fileService;
+    private final S3Client s3Client;
+    private final DocumentRepository documentRepository;
+
+    @Value("${app.s3.bucket}")
+    private String bucketName;
+
+    public ThumbnailService(FileService fileService, S3Client s3Client,
+                            DocumentRepository documentRepository) {
+        this.fileService = fileService;
+        this.s3Client = s3Client;
+        this.documentRepository = documentRepository;
+    }
+
+    public Outcome generate(Document doc) {
+        if (doc.getFilePath() == null) {
+            log.debug("Document {} has no filePath, skipping thumbnail", doc.getId());
+            return Outcome.SKIPPED;
+        }
+        String contentType = doc.getContentType();
+        if (contentType == null || !isSupported(contentType)) {
+            log.warn("Document {} has unsupported contentType {}, skipping thumbnail",
+                    doc.getId(), contentType);
+            return Outcome.SKIPPED;
+        }
+
+        SourcePreview preview = readSourcePreview(doc, contentType);
+        if (preview == null
+                || preview.image().getWidth() <= 0 || preview.image().getHeight() <= 0) {
+            log.warn("Thumbnail source has invalid dimensions for doc={}", doc.getId());
+            return Outcome.FAILED;
+        }
+
+        byte[] jpeg = encodeThumbnail(preview.image(), doc.getId());
+        if (jpeg == null) return Outcome.FAILED;
+
+        String thumbnailKey = thumbnailKeyFor(doc.getId());
+        if (!uploadToStorage(thumbnailKey, jpeg, doc.getId())) return Outcome.FAILED;
+
+        ThumbnailResult result = new ThumbnailResult(
+                thumbnailKey, aspectOf(preview.image()), preview.pageCount());
+        return persistThumbnailMetadata(doc, result);
+    }
+
+    private static ThumbnailAspect aspectOf(BufferedImage source) {
+        float ratio = (float) source.getWidth() / source.getHeight();
+        return ratio > LANDSCAPE_THRESHOLD ? ThumbnailAspect.LANDSCAPE : ThumbnailAspect.PORTRAIT;
+    }
+
+    // First-page image + total page count for the source file. Page count is always
+    // 1 for image uploads; for PDFs it comes straight from PDDocument.
+    private record SourcePreview(BufferedImage image, int pageCount) {}
+
+    // Everything the generate pipeline has already committed to storage and
+    // now wants stamped onto the Document entity in a single save call.
+    private record ThumbnailResult(String key, ThumbnailAspect aspect, int pageCount) {}
+
+    private static String thumbnailKeyFor(UUID documentId) {
+        return THUMBNAIL_KEY_PREFIX + documentId + THUMBNAIL_KEY_SUFFIX;
+    }
+
+    private SourcePreview readSourcePreview(Document doc, String contentType) {
+        try {
+            return PDF_CONTENT_TYPE.equals(contentType)
+                    ? renderPdfFirstPage(doc.getFilePath())
+                    : new SourcePreview(readImage(doc.getFilePath()), 1);
+        } catch (Exception e) {
+            log.warn("Thumbnail source read failed for doc={} reason={}",
+                    doc.getId(), e.getMessage());
+            return null;
+        }
+    }
+
+    private byte[] encodeThumbnail(BufferedImage source, UUID documentId) {
+        try {
+            BufferedImage scaled = scaleToWidth(source, THUMBNAIL_WIDTH);
+            return encodeJpeg(scaled, JPEG_QUALITY);
+        } catch (Exception e) {
+            log.warn("Thumbnail JPEG encoding failed for doc={} reason={}",
+                    documentId, e.getMessage());
+            return null;
+        }
+    }
+
+    private boolean uploadToStorage(String thumbnailKey, byte[] jpeg, UUID documentId) {
+        try {
+            s3Client.putObject(
+                    PutObjectRequest.builder()
+                            .bucket(bucketName)
+                            .key(thumbnailKey)
+                            .contentType("image/jpeg")
+                            .build(),
+                    RequestBody.fromBytes(jpeg));
+            return true;
+        } catch (Exception e) {
+            log.warn("Thumbnail upload failed for doc={} key={} reason={}",
+                    documentId, thumbnailKey, e.getMessage());
+            return false;
+        }
+    }
+
+    private Outcome persistThumbnailMetadata(Document doc, ThumbnailResult result) {
+        try {
+            doc.setThumbnailKey(result.key());
+            doc.setThumbnailGeneratedAt(LocalDateTime.now());
+            doc.setThumbnailAspect(result.aspect());
+            doc.setPageCount(result.pageCount());
+            documentRepository.save(doc);
+            return Outcome.SUCCESS;
+        } catch (Exception e) {
+            // Thumbnail is already in S3 but the entity update failed. Because the S3
+            // key is deterministic (thumbnails/{docId}.jpg), the next successful run
+            // — either a re-upload of this document or the admin backfill — will
+            // overwrite it cleanly. Logging distinctly so an operator tracking
+            // backfill totals can spot the database-side issue.
+            log.warn("Thumbnail persist failed for doc={} (orphaned in storage as {}): {}",
+                    doc.getId(), result.key(), e.getMessage());
+            return Outcome.FAILED;
+        }
+    }
+
+    private boolean isSupported(String contentType) {
+        return PDF_CONTENT_TYPE.equals(contentType) || IMAGE_CONTENT_TYPES.contains(contentType);
+    }
+
+    private SourcePreview renderPdfFirstPage(String s3Key) throws IOException {
+        try (InputStream in = fileService.downloadFileStream(s3Key);
+             PDDocument pdf = Loader.loadPDF(new RandomAccessReadBuffer(in))) {
+            PDFRenderer renderer = new PDFRenderer(pdf);
+            BufferedImage image = renderer.renderImageWithDPI(0, PDF_RENDER_DPI, ImageType.RGB);
+            return new SourcePreview(image, pdf.getNumberOfPages());
+        }
+    }
+
+    private BufferedImage readImage(String s3Key) throws IOException {
+        try (InputStream in = fileService.downloadFileStream(s3Key)) {
+            BufferedImage img = ImageIO.read(in);
+            if (img == null) {
+                throw new IOException("No ImageIO reader available for " + s3Key);
+            }
+            return img;
+        }
+    }
+
+    private BufferedImage scaleToWidth(BufferedImage source, int targetWidth) {
+        int sourceWidth = source.getWidth();
+        int sourceHeight = source.getHeight();
+        int targetHeight = Math.max(1, Math.round((float) targetWidth * sourceHeight / sourceWidth));
+        BufferedImage scaled = new BufferedImage(targetWidth, targetHeight, BufferedImage.TYPE_INT_RGB);
+        Graphics2D g = scaled.createGraphics();
+        g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
+        g.drawImage(source, 0, 0, targetWidth, targetHeight, null);
+        g.dispose();
+        return scaled;
+    }
+
+    private byte[] encodeJpeg(BufferedImage image, float quality) throws IOException {
+        ByteArrayOutputStream bos = new ByteArrayOutputStream();
+        ImageWriter writer = ImageIO.getImageWritersByFormatName("jpg").next();
+        ImageWriteParam param = writer.getDefaultWriteParam();
+        param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
+        param.setCompressionQuality(quality);
+        try (ImageOutputStream out = ImageIO.createImageOutputStream(bos)) {
+            writer.setOutput(out);
+            writer.write(null, new IIOImage(image, null, null), param);
+        } finally {
+            writer.dispose();
+        }
+        return bos.toByteArray();
+    }
+}

backend/src/main/java/org/raddatz/familienarchiv/document/annotation/AnnotationController.java

@@ -1,17 +1,17 @@
-package org.raddatz.familienarchiv.controller;
+package org.raddatz.familienarchiv.document.annotation;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.raddatz.familienarchiv.dto.CreateAnnotationDTO;
-import org.raddatz.familienarchiv.dto.UpdateAnnotationDTO;
-import org.raddatz.familienarchiv.model.AppUser;
-import org.raddatz.familienarchiv.model.Document;
-import org.raddatz.familienarchiv.model.DocumentAnnotation;
+import org.raddatz.familienarchiv.document.annotation.CreateAnnotationDTO;
+import org.raddatz.familienarchiv.document.annotation.UpdateAnnotationDTO;
+import org.raddatz.familienarchiv.user.AppUser;
+import org.raddatz.familienarchiv.document.Document;
+import org.raddatz.familienarchiv.document.annotation.DocumentAnnotation;
 import org.raddatz.familienarchiv.security.Permission;
 import org.raddatz.familienarchiv.security.RequirePermission;
-import org.raddatz.familienarchiv.service.AnnotationService;
-import org.raddatz.familienarchiv.service.DocumentService;
-import org.raddatz.familienarchiv.service.UserService;
+import org.raddatz.familienarchiv.document.annotation.AnnotationService;
+import org.raddatz.familienarchiv.document.DocumentService;
+import org.raddatz.familienarchiv.user.UserService;
 import jakarta.validation.Valid;
 import org.springframework.http.HttpStatus;
 import org.springframework.security.core.Authentication;

backend/src/main/java/org/raddatz/familienarchiv/document/annotation/AnnotationRepository.java

@@ -1,6 +1,6 @@
-package org.raddatz.familienarchiv.repository;
+package org.raddatz.familienarchiv.document.annotation;
 
-import org.raddatz.familienarchiv.model.DocumentAnnotation;
+import org.raddatz.familienarchiv.document.annotation.DocumentAnnotation;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 import java.util.List;

backend/src/main/java/org/raddatz/familienarchiv/document/annotation/AnnotationService.java

@@ -1,22 +1,23 @@
-package org.raddatz.familienarchiv.service;
+package org.raddatz.familienarchiv.document.annotation;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.raddatz.familienarchiv.audit.AuditKind;
 import org.raddatz.familienarchiv.audit.AuditService;
-import org.raddatz.familienarchiv.dto.CreateAnnotationDTO;
-import org.raddatz.familienarchiv.dto.UpdateAnnotationDTO;
+import org.raddatz.familienarchiv.document.annotation.CreateAnnotationDTO;
+import org.raddatz.familienarchiv.document.annotation.UpdateAnnotationDTO;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionBlockRepository;
 import org.raddatz.familienarchiv.exception.DomainException;
 import org.raddatz.familienarchiv.exception.ErrorCode;
-import org.raddatz.familienarchiv.model.DocumentAnnotation;
-import org.raddatz.familienarchiv.repository.AnnotationRepository;
-import org.raddatz.familienarchiv.repository.TranscriptionBlockRepository;
+import org.raddatz.familienarchiv.document.annotation.DocumentAnnotation;
+import org.raddatz.familienarchiv.document.annotation.AnnotationRepository;
 import org.springframework.dao.DataIntegrityViolationException;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 import java.util.UUID;
 
 @Slf4j
@@ -25,13 +26,27 @@ import java.util.UUID;
 public class AnnotationService {
 
     private final AnnotationRepository annotationRepository;
-    private final TranscriptionBlockRepository blockRepository;
+    private final TranscriptionBlockRepository transcriptionBlockRepository;
     private final AuditService auditService;
 
     public List<DocumentAnnotation> listAnnotations(UUID documentId) {
         return annotationRepository.findByDocumentId(documentId);
     }
 
+    public Optional<DocumentAnnotation> findById(UUID id) {
+        return annotationRepository.findById(id);
+    }
+
+    @Transactional
+    public void deleteById(UUID annotationId) {
+        annotationRepository.deleteById(annotationId);
+    }
+
+    @Transactional
+    public void deleteAllById(java.util.Collection<UUID> annotationIds) {
+        annotationRepository.deleteAllById(annotationIds);
+    }
+
     @Transactional
     public DocumentAnnotation createAnnotation(UUID documentId, CreateAnnotationDTO dto, UUID userId, String fileHash) {
         DocumentAnnotation annotation = DocumentAnnotation.builder()
@@ -103,7 +118,7 @@ public class AnnotationService {
             throw DomainException.forbidden("Only the annotation author can delete it");
         }
 
-        blockRepository.deleteByAnnotationId(annotationId);
+        transcriptionBlockRepository.deleteByAnnotationId(annotationId);
         annotationRepository.delete(annotation);
     }
 

backend/src/main/java/org/raddatz/familienarchiv/document/annotation/CreateAnnotationDTO.java

@@ -1,7 +1,8 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.document.annotation;
 
 import jakarta.validation.Valid;
 import jakarta.validation.constraints.DecimalMax;
+import org.raddatz.familienarchiv.document.annotation.UniquePoints;
 import jakarta.validation.constraints.DecimalMin;
 import jakarta.validation.constraints.Size;
 import lombok.AllArgsConstructor;

backend/src/main/java/org/raddatz/familienarchiv/document/annotation/DocumentAnnotation.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.model;
+package org.raddatz.familienarchiv.document.annotation;
 
 import io.swagger.v3.oas.annotations.media.Schema;
 import jakarta.persistence.*;

backend/src/main/java/org/raddatz/familienarchiv/document/annotation/PolygonConverter.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.model;
+package org.raddatz.familienarchiv.document.annotation;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.core.type.TypeReference;

backend/src/main/java/org/raddatz/familienarchiv/document/annotation/UniquePoints.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.document.annotation;
 
 import jakarta.validation.Constraint;
 import jakarta.validation.Payload;

backend/src/main/java/org/raddatz/familienarchiv/document/annotation/UniquePointsValidator.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.document.annotation;
 
 import jakarta.validation.ConstraintValidator;
 import jakarta.validation.ConstraintValidatorContext;

backend/src/main/java/org/raddatz/familienarchiv/document/annotation/UpdateAnnotationDTO.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.document.annotation;
 
 import jakarta.validation.constraints.DecimalMax;
 import jakarta.validation.constraints.DecimalMin;

backend/src/main/java/org/raddatz/familienarchiv/document/comment/CommentController.java

@@ -1,14 +1,14 @@
-package org.raddatz.familienarchiv.controller;
+package org.raddatz.familienarchiv.document.comment;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.raddatz.familienarchiv.dto.CreateCommentDTO;
-import org.raddatz.familienarchiv.model.AppUser;
-import org.raddatz.familienarchiv.model.DocumentComment;
+import org.raddatz.familienarchiv.document.comment.CreateCommentDTO;
+import org.raddatz.familienarchiv.user.AppUser;
+import org.raddatz.familienarchiv.document.comment.DocumentComment;
 import org.raddatz.familienarchiv.security.Permission;
 import org.raddatz.familienarchiv.security.RequirePermission;
-import org.raddatz.familienarchiv.service.CommentService;
-import org.raddatz.familienarchiv.service.UserService;
+import org.raddatz.familienarchiv.document.comment.CommentService;
+import org.raddatz.familienarchiv.user.UserService;
 import org.springframework.http.HttpStatus;
 import org.springframework.security.core.Authentication;
 import org.springframework.web.bind.annotation.*;
@@ -24,67 +24,6 @@ public class CommentController {
     private final CommentService commentService;
     private final UserService userService;
 
-    // ─── General document comments ────────────────────────────────────────────
-
-    @GetMapping("/api/documents/{documentId}/comments")
-    public List<DocumentComment> getDocumentComments(@PathVariable UUID documentId) {
-        return commentService.getCommentsForDocument(documentId);
-    }
-
-    @PostMapping("/api/documents/{documentId}/comments")
-    @ResponseStatus(HttpStatus.CREATED)
-    @RequirePermission({Permission.ANNOTATE_ALL, Permission.WRITE_ALL})
-    public DocumentComment postDocumentComment(
-            @PathVariable UUID documentId,
-            @RequestBody CreateCommentDTO dto,
-            Authentication authentication) {
-        AppUser author = resolveUser(authentication);
-        return commentService.postComment(documentId, null, dto.getContent(), dto.getMentionedUserIds(), author);
-    }
-
-    @PostMapping("/api/documents/{documentId}/comments/{commentId}/replies")
-    @ResponseStatus(HttpStatus.CREATED)
-    @RequirePermission({Permission.ANNOTATE_ALL, Permission.WRITE_ALL})
-    public DocumentComment replyToDocumentComment(
-            @PathVariable UUID documentId,
-            @PathVariable UUID commentId,
-            @RequestBody CreateCommentDTO dto,
-            Authentication authentication) {
-        AppUser author = resolveUser(authentication);
-        return commentService.replyToComment(documentId, commentId, dto.getContent(), dto.getMentionedUserIds(), author);
-    }
-
-    // ─── Annotation comments ──────────────────────────────────────────────────
-
-    @GetMapping("/api/documents/{documentId}/annotations/{annotationId}/comments")
-    public List<DocumentComment> getAnnotationComments(@PathVariable UUID annotationId) {
-        return commentService.getCommentsForAnnotation(annotationId);
-    }
-
-    @PostMapping("/api/documents/{documentId}/annotations/{annotationId}/comments")
-    @ResponseStatus(HttpStatus.CREATED)
-    @RequirePermission({Permission.ANNOTATE_ALL, Permission.WRITE_ALL})
-    public DocumentComment postAnnotationComment(
-            @PathVariable UUID documentId,
-            @PathVariable UUID annotationId,
-            @RequestBody CreateCommentDTO dto,
-            Authentication authentication) {
-        AppUser author = resolveUser(authentication);
-        return commentService.postComment(documentId, annotationId, dto.getContent(), dto.getMentionedUserIds(), author);
-    }
-
-    @PostMapping("/api/documents/{documentId}/annotations/{annotationId}/comments/{commentId}/replies")
-    @ResponseStatus(HttpStatus.CREATED)
-    @RequirePermission({Permission.ANNOTATE_ALL, Permission.WRITE_ALL})
-    public DocumentComment replyToAnnotationComment(
-            @PathVariable UUID documentId,
-            @PathVariable UUID commentId,
-            @RequestBody CreateCommentDTO dto,
-            Authentication authentication) {
-        AppUser author = resolveUser(authentication);
-        return commentService.replyToComment(documentId, commentId, dto.getContent(), dto.getMentionedUserIds(), author);
-    }
-
     // ─── Block (transcription) comments ────────────────────────────────────────
 
     @GetMapping("/api/documents/{documentId}/transcription-blocks/{blockId}/comments")

backend/src/main/java/org/raddatz/familienarchiv/document/comment/CommentRepository.java

@@ -1,6 +1,6 @@
-package org.raddatz.familienarchiv.repository;
+package org.raddatz.familienarchiv.document.comment;
 
-import org.raddatz.familienarchiv.model.DocumentComment;
+import org.raddatz.familienarchiv.document.comment.DocumentComment;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 import java.util.List;
@@ -8,10 +8,6 @@ import java.util.UUID;
 
 public interface CommentRepository extends JpaRepository<DocumentComment, UUID> {
 
-    List<DocumentComment> findByDocumentIdAndAnnotationIdIsNullAndParentIdIsNull(UUID documentId);
-
-    List<DocumentComment> findByAnnotationIdAndParentIdIsNull(UUID annotationId);
-
     List<DocumentComment> findByParentId(UUID parentId);
 
     List<DocumentComment> findByBlockIdAndParentIdIsNull(UUID blockId);

backend/src/main/java/org/raddatz/familienarchiv/document/comment/CommentService.java

@@ -1,17 +1,23 @@
-package org.raddatz.familienarchiv.service;
+package org.raddatz.familienarchiv.document.comment;
 
 import lombok.RequiredArgsConstructor;
 import org.raddatz.familienarchiv.audit.AuditKind;
 import org.raddatz.familienarchiv.audit.AuditService;
-import org.raddatz.familienarchiv.dto.MentionDTO;
+import org.raddatz.familienarchiv.document.transcription.MentionDTO;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionService;
+import org.raddatz.familienarchiv.user.UserService;
 import org.raddatz.familienarchiv.exception.DomainException;
 import org.raddatz.familienarchiv.exception.ErrorCode;
-import org.raddatz.familienarchiv.model.AppUser;
-import org.raddatz.familienarchiv.model.DocumentComment;
-import org.raddatz.familienarchiv.repository.CommentRepository;
+import org.raddatz.familienarchiv.user.AppUser;
+import org.raddatz.familienarchiv.document.comment.DocumentComment;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionBlock;
+import org.raddatz.familienarchiv.document.comment.CommentRepository;
+import org.raddatz.familienarchiv.notification.NotificationService;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.util.Collection;
+import java.util.HashMap;
 import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Map;
@@ -26,16 +32,15 @@ public class CommentService {
     private final UserService userService;
     private final NotificationService notificationService;
     private final AuditService auditService;
+    private final TranscriptionService transcriptionService;
 
-    public List<DocumentComment> getCommentsForDocument(UUID documentId) {
-        List<DocumentComment> roots =
-                commentRepository.findByDocumentIdAndAnnotationIdIsNullAndParentIdIsNull(documentId);
-        return withRepliesAndMentions(roots);
-    }
-
-    public List<DocumentComment> getCommentsForAnnotation(UUID annotationId) {
-        List<DocumentComment> roots = commentRepository.findByAnnotationIdAndParentIdIsNull(annotationId);
-        return withRepliesAndMentions(roots);
+    public Map<UUID, UUID> findAnnotationIdsByIds(Collection<UUID> commentIds) {
+        if (commentIds == null || commentIds.isEmpty()) return Map.of();
+        Map<UUID, UUID> result = new HashMap<>();
+        for (DocumentComment c : commentRepository.findAllById(commentIds)) {
+            if (c.getAnnotationId() != null) result.put(c.getId(), c.getAnnotationId());
+        }
+        return result;
     }
 
     public List<DocumentComment> getCommentsForBlock(UUID blockId) {
@@ -46,27 +51,11 @@ public class CommentService {
     @Transactional
     public DocumentComment postBlockComment(UUID documentId, UUID blockId, String content,
                                             List<UUID> mentionedUserIds, AppUser author) {
+        TranscriptionBlock block = transcriptionService.getBlock(documentId, blockId);
         DocumentComment comment = DocumentComment.builder()
                 .documentId(documentId)
                 .blockId(blockId)
-                .content(content)
-                .authorId(author.getId())
-                .authorName(resolveAuthorName(author))
-                .build();
-        saveMentions(comment, mentionedUserIds);
-        DocumentComment saved = commentRepository.save(comment);
-        withMentionDTOs(saved);
-        notificationService.notifyMentions(mentionedUserIds, saved);
-        logCommentPosted(author, documentId, saved, mentionedUserIds);
-        return saved;
-    }
-
-    @Transactional
-    public DocumentComment postComment(UUID documentId, UUID annotationId, String content,
-                                       List<UUID> mentionedUserIds, AppUser author) {
-        DocumentComment comment = DocumentComment.builder()
-                .documentId(documentId)
-                .annotationId(annotationId)
+                .annotationId(block.getAnnotationId())
                 .content(content)
                 .authorId(author.getId())
                 .authorName(resolveAuthorName(author))

backend/src/main/java/org/raddatz/familienarchiv/document/comment/CreateCommentDTO.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.document.comment;
 
 import lombok.Data;
 

backend/src/main/java/org/raddatz/familienarchiv/document/comment/DocumentComment.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.model;
+package org.raddatz.familienarchiv.document.comment;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import io.swagger.v3.oas.annotations.media.Schema;
@@ -6,7 +6,8 @@ import jakarta.persistence.*;
 import lombok.*;
 import org.hibernate.annotations.CreationTimestamp;
 import org.hibernate.annotations.UpdateTimestamp;
-import org.raddatz.familienarchiv.dto.MentionDTO;
+import org.raddatz.familienarchiv.document.transcription.MentionDTO;
+import org.raddatz.familienarchiv.user.AppUser;
 
 import java.time.LocalDateTime;
 import java.util.ArrayList;
@@ -71,7 +72,7 @@ public class DocumentComment {
     @JoinTable(
             name = "comment_mentions",
             joinColumns = @JoinColumn(name = "comment_id"),
-            inverseJoinColumns = @JoinColumn(name = "user_id")
+            inverseJoinColumns = @JoinColumn(name = "app_user_id")
     )
     @JsonIgnore
     @Builder.Default

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/CompletionStatsRow.java

@@ -0,0 +1,8 @@
+package org.raddatz.familienarchiv.document.transcription;
+
+import java.util.UUID;
+
+public interface CompletionStatsRow {
+    UUID getDocumentId();
+    int getCompletionPercentage();
+}

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/CreateTranscriptionBlockDTO.java

@@ -1,14 +1,21 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.document.transcription;
 
+import jakarta.validation.Valid;
 import jakarta.validation.constraints.Min;
 import jakarta.validation.constraints.Positive;
 import lombok.AllArgsConstructor;
+import lombok.Builder;
 import lombok.Data;
 import lombok.NoArgsConstructor;
+import org.raddatz.familienarchiv.document.transcription.PersonMention;
+
+import java.util.ArrayList;
+import java.util.List;
 
 @Data
 @NoArgsConstructor
 @AllArgsConstructor
+@Builder
 public class CreateTranscriptionBlockDTO {
     @Min(0)
     private int pageNumber;
@@ -22,4 +29,8 @@ public class CreateTranscriptionBlockDTO {
     private double height;
     private String text;
     private String label;
+
+    @Valid
+    @Builder.Default
+    private List<PersonMention> mentionedPersons = new ArrayList<>();
 }

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/MentionDTO.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.document.transcription;
 
 import io.swagger.v3.oas.annotations.media.Schema;
 

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/PersonMention.java

@@ -0,0 +1,31 @@
+package org.raddatz.familienarchiv.document.transcription;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.persistence.Column;
+import jakarta.persistence.Embeddable;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.UUID;
+
+@Embeddable
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class PersonMention {
+
+    @NotNull
+    @Column(name = "person_id", nullable = false)
+    @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+    private UUID personId;
+
+    @NotNull
+    @Size(max = 200)
+    @Column(name = "display_name", nullable = false, length = 200)
+    @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+    // Archival: the text the transcriber typed after @. Never updated on person rename.
+    private String displayName;
+}

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/ReorderTranscriptionBlocksDTO.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.document.transcription;
 
 import lombok.AllArgsConstructor;
 import lombok.Data;

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/TranscriptionBlock.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.model;
+package org.raddatz.familienarchiv.document.transcription;
 
 import io.swagger.v3.oas.annotations.media.Schema;
 import jakarta.persistence.*;
@@ -6,7 +6,11 @@ import lombok.*;
 import org.hibernate.annotations.CreationTimestamp;
 import org.hibernate.annotations.UpdateTimestamp;
 
+import org.raddatz.familienarchiv.document.BlockSource;
+
 import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.UUID;
 
 @Entity
@@ -33,6 +37,16 @@ public class TranscriptionBlock {
     @Column(columnDefinition = "TEXT")
     private String text;
 
+    // EAGER: mention set is bounded by block text length (typically < 20 entries).
+    // Switching back to LAZY requires callers to be inside an open Hibernate session.
+    @ElementCollection(fetch = FetchType.EAGER)
+    @CollectionTable(
+            name = "transcription_block_mentioned_persons",
+            joinColumns = @JoinColumn(name = "block_id"))
+    @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+    @Builder.Default
+    private List<PersonMention> mentionedPersons = new ArrayList<>();
+
     @Column(length = 200)
     private String label;
 

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/TranscriptionBlockController.java

@@ -1,17 +1,18 @@
-package org.raddatz.familienarchiv.controller;
+package org.raddatz.familienarchiv.document.transcription;
 
+import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.raddatz.familienarchiv.dto.CreateTranscriptionBlockDTO;
-import org.raddatz.familienarchiv.dto.ReorderTranscriptionBlocksDTO;
-import org.raddatz.familienarchiv.dto.UpdateTranscriptionBlockDTO;
-import org.raddatz.familienarchiv.model.TranscriptionBlock;
-import org.raddatz.familienarchiv.model.TranscriptionBlockVersion;
+import org.raddatz.familienarchiv.document.transcription.CreateTranscriptionBlockDTO;
+import org.raddatz.familienarchiv.document.transcription.ReorderTranscriptionBlocksDTO;
+import org.raddatz.familienarchiv.document.transcription.UpdateTranscriptionBlockDTO;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionBlock;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionBlockVersion;
 import org.raddatz.familienarchiv.security.Permission;
 import org.raddatz.familienarchiv.security.RequirePermission;
 import org.raddatz.familienarchiv.security.SecurityUtils;
-import org.raddatz.familienarchiv.service.TranscriptionService;
-import org.raddatz.familienarchiv.service.UserService;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionService;
+import org.raddatz.familienarchiv.user.UserService;
 import org.springframework.http.HttpStatus;
 import org.springframework.security.core.Authentication;
 import org.springframework.web.bind.annotation.*;
@@ -45,7 +46,7 @@ public class TranscriptionBlockController {
     @RequirePermission(Permission.WRITE_ALL)
     public TranscriptionBlock createBlock(
             @PathVariable UUID documentId,
-            @RequestBody CreateTranscriptionBlockDTO dto,
+            @Valid @RequestBody CreateTranscriptionBlockDTO dto,
             Authentication authentication) {
         UUID userId = requireUserId(authentication);
         return transcriptionService.createBlock(documentId, dto, userId);
@@ -56,7 +57,7 @@ public class TranscriptionBlockController {
     public TranscriptionBlock updateBlock(
             @PathVariable UUID documentId,
             @PathVariable UUID blockId,
-            @RequestBody UpdateTranscriptionBlockDTO dto,
+            @Valid @RequestBody UpdateTranscriptionBlockDTO dto,
             Authentication authentication) {
         UUID userId = requireUserId(authentication);
         return transcriptionService.updateBlock(documentId, blockId, dto, userId);
@@ -90,6 +91,15 @@ public class TranscriptionBlockController {
         return transcriptionService.reviewBlock(documentId, blockId, userId);
     }
 
+    @PutMapping("/review-all")
+    @RequirePermission(Permission.WRITE_ALL)
+    public List<TranscriptionBlock> markAllBlocksReviewed(
+            @PathVariable UUID documentId,
+            Authentication authentication) {
+        UUID userId = requireUserId(authentication);
+        return transcriptionService.markAllBlocksReviewed(documentId, userId);
+    }
+
     @GetMapping("/{blockId}/history")
     @RequirePermission(Permission.READ_ALL)
     public List<TranscriptionBlockVersion> getBlockHistory(

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/TranscriptionBlockQueryService.java

@@ -0,0 +1,48 @@
+package org.raddatz.familienarchiv.document.transcription;
+
+import lombok.RequiredArgsConstructor;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionBlock;
+import org.raddatz.familienarchiv.document.transcription.CompletionStatsRow;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionBlockRepository;
+import org.springframework.stereotype.Service;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+
+@Service
+@RequiredArgsConstructor
+public class TranscriptionBlockQueryService {
+
+    private final TranscriptionBlockRepository blockRepository;
+
+    public Map<UUID, Integer> getCompletionStats(List<UUID> documentIds) {
+        if (documentIds.isEmpty()) return Map.of();
+        Map<UUID, Integer> result = new HashMap<>();
+        for (CompletionStatsRow row : blockRepository.findCompletionStatsForDocuments(documentIds)) {
+            result.put(row.getDocumentId(), row.getCompletionPercentage());
+        }
+        return result;
+    }
+
+    public List<TranscriptionBlock> findSegmentationBlocks() {
+        return blockRepository.findSegmentationBlocks();
+    }
+
+    public List<TranscriptionBlock> findEligibleKurrentBlocks() {
+        return blockRepository.findEligibleKurrentBlocks();
+    }
+
+    public List<TranscriptionBlock> findManualKurrentBlocksByPerson(UUID personId) {
+        return blockRepository.findManualKurrentBlocksByPerson(personId);
+    }
+
+    public long countManualKurrentBlocksByPerson(UUID personId) {
+        return blockRepository.countManualKurrentBlocksByPerson(personId);
+    }
+
+    public long count() {
+        return blockRepository.count();
+    }
+}

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/TranscriptionBlockRepository.java

@@ -1,22 +1,44 @@
-package org.raddatz.familienarchiv.repository;
+package org.raddatz.familienarchiv.document.transcription;
 
-import org.raddatz.familienarchiv.model.TranscriptionBlock;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionBlock;
+import org.raddatz.familienarchiv.document.transcription.CompletionStatsRow;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.query.Param;
 
+import java.util.Collection;
 import java.util.List;
 import java.util.Optional;
 import java.util.UUID;
 
 public interface TranscriptionBlockRepository extends JpaRepository<TranscriptionBlock, UUID> {
 
+    @Query(value = """
+            SELECT
+                b.document_id                                                              AS documentId,
+                ROUND(COUNT(*) FILTER (WHERE b.reviewed = true) * 100.0 / COUNT(*))::int  AS completionPercentage
+            FROM transcription_blocks b
+            WHERE b.document_id IN :documentIds
+            GROUP BY b.document_id
+            """, nativeQuery = true)
+    List<CompletionStatsRow> findCompletionStatsForDocuments(
+            @Param("documentIds") Collection<UUID> documentIds);
+
     List<TranscriptionBlock> findByDocumentIdOrderBySortOrderAsc(UUID documentId);
 
     Optional<TranscriptionBlock> findByIdAndDocumentId(UUID id, UUID documentId);
 
     Optional<TranscriptionBlock> findByAnnotationId(UUID annotationId);
 
+    @Query("""
+            SELECT DISTINCT b FROM TranscriptionBlock b
+            JOIN FETCH b.mentionedPersons
+            WHERE b.id IN (
+                SELECT bb.id FROM TranscriptionBlock bb JOIN bb.mentionedPersons m WHERE m.personId = :personId
+            )
+            """)
+    List<TranscriptionBlock> findByPersonIdWithMentionsFetched(@Param("personId") UUID personId);
+
     void deleteByAnnotationId(UUID annotationId);
 
     int countByDocumentId(UUID documentId);
@@ -39,21 +61,25 @@ public interface TranscriptionBlockRepository extends JpaRepository<Transcriptio
             """)
     List<TranscriptionBlock> findSegmentationBlocks();
 
+    // Uses 'KURRENT_RECOGNITION' MEMBER OF d.trainingLabels — aligned with findEligibleKurrentBlocks()
+    // which already used this form (changed from d.scriptType = 'KURRENT' in the original queries).
     @Query("""
             SELECT COUNT(b) FROM TranscriptionBlock b
             JOIN Document d ON d.id = b.documentId
             WHERE b.source = 'MANUAL'
             AND d.sender.id = :personId
-            AND d.scriptType = 'HANDWRITING_KURRENT'
+            AND 'KURRENT_RECOGNITION' MEMBER OF d.trainingLabels
             """)
     long countManualKurrentBlocksByPerson(@Param("personId") UUID personId);
 
+    // Uses 'KURRENT_RECOGNITION' MEMBER OF d.trainingLabels — aligned with findEligibleKurrentBlocks()
+    // which already used this form (changed from d.scriptType = 'KURRENT' in the original queries).
     @Query("""
             SELECT b FROM TranscriptionBlock b
             JOIN Document d ON d.id = b.documentId
             WHERE b.source = 'MANUAL'
             AND d.sender.id = :personId
-            AND d.scriptType = 'HANDWRITING_KURRENT'
+            AND 'KURRENT_RECOGNITION' MEMBER OF d.trainingLabels
             """)
     List<TranscriptionBlock> findManualKurrentBlocksByPerson(@Param("personId") UUID personId);
 }

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/TranscriptionBlockVersion.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.model;
+package org.raddatz.familienarchiv.document.transcription;
 
 import io.swagger.v3.oas.annotations.media.Schema;
 import jakarta.persistence.*;

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/TranscriptionBlockVersionRepository.java

@@ -1,6 +1,6 @@
-package org.raddatz.familienarchiv.repository;
+package org.raddatz.familienarchiv.document.transcription;
 
-import org.raddatz.familienarchiv.model.TranscriptionBlockVersion;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionBlockVersion;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 import java.util.List;

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/TranscriptionQueueController.java

@@ -1,11 +1,11 @@
-package org.raddatz.familienarchiv.controller;
+package org.raddatz.familienarchiv.document.transcription;
 
 import lombok.RequiredArgsConstructor;
-import org.raddatz.familienarchiv.dto.TranscriptionQueueItemDTO;
-import org.raddatz.familienarchiv.dto.TranscriptionWeeklyStatsDTO;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionQueueItemDTO;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionWeeklyStatsDTO;
 import org.raddatz.familienarchiv.security.Permission;
 import org.raddatz.familienarchiv.security.RequirePermission;
-import org.raddatz.familienarchiv.service.TranscriptionQueueService;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionQueueService;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/TranscriptionQueueItemDTO.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.document.transcription;
 
 import io.swagger.v3.oas.annotations.media.Schema;
 import org.raddatz.familienarchiv.audit.ActivityActorDTO;

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/TranscriptionQueueProjection.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.repository;
+package org.raddatz.familienarchiv.document.transcription;
 
 import java.time.LocalDate;
 import java.util.UUID;

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/TranscriptionQueueService.java

@@ -1,12 +1,12 @@
-package org.raddatz.familienarchiv.service;
+package org.raddatz.familienarchiv.document.transcription;
 
 import lombok.RequiredArgsConstructor;
 import org.raddatz.familienarchiv.audit.ActivityActorDTO;
 import org.raddatz.familienarchiv.audit.AuditLogQueryService;
-import org.raddatz.familienarchiv.dto.TranscriptionQueueItemDTO;
-import org.raddatz.familienarchiv.dto.TranscriptionWeeklyStatsDTO;
-import org.raddatz.familienarchiv.repository.DocumentRepository;
-import org.raddatz.familienarchiv.repository.TranscriptionQueueProjection;
+import org.raddatz.familienarchiv.document.DocumentService;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionQueueItemDTO;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionWeeklyStatsDTO;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionQueueProjection;
 import org.springframework.stereotype.Service;
 
 import java.util.List;
@@ -20,23 +20,23 @@ public class TranscriptionQueueService {
     private static final int DEFAULT_QUEUE_SIZE = 5;
     private static final int MAX_CONTRIBUTORS = 5;
 
-    private final DocumentRepository documentRepository;
+    private final DocumentService documentService;
     private final AuditLogQueryService auditLogQueryService;
 
     public List<TranscriptionQueueItemDTO> getSegmentationQueue() {
-        return enrichWithContributors(documentRepository.findSegmentationQueue(DEFAULT_QUEUE_SIZE));
+        return enrichWithContributors(documentService.findSegmentationQueue(DEFAULT_QUEUE_SIZE));
     }
 
     public List<TranscriptionQueueItemDTO> getTranscriptionQueue() {
-        return enrichWithContributors(documentRepository.findTranscriptionQueue(DEFAULT_QUEUE_SIZE));
+        return enrichWithContributors(documentService.findTranscriptionQueue(DEFAULT_QUEUE_SIZE));
     }
 
     public List<TranscriptionQueueItemDTO> getReadyToReadQueue() {
-        return enrichWithContributors(documentRepository.findReadyToReadQueue(DEFAULT_QUEUE_SIZE));
+        return enrichWithContributors(documentService.findReadyToReadQueue(DEFAULT_QUEUE_SIZE));
     }
 
     public TranscriptionWeeklyStatsDTO getWeeklyStats() {
-        var stats = documentRepository.findWeeklyStats();
+        var stats = documentService.findWeeklyStats();
         return new TranscriptionWeeklyStatsDTO(
                 stats.getSegmentationCount(),
                 stats.getTranscriptionCount()

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/TranscriptionService.java

@@ -1,24 +1,26 @@
-package org.raddatz.familienarchiv.service;
+package org.raddatz.familienarchiv.document.transcription;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.raddatz.familienarchiv.audit.AuditKind;
 import org.raddatz.familienarchiv.audit.AuditService;
-import org.raddatz.familienarchiv.dto.CreateAnnotationDTO;
-import org.raddatz.familienarchiv.dto.CreateTranscriptionBlockDTO;
-import org.raddatz.familienarchiv.dto.ReorderTranscriptionBlocksDTO;
-import org.raddatz.familienarchiv.dto.UpdateTranscriptionBlockDTO;
+import org.raddatz.familienarchiv.document.annotation.CreateAnnotationDTO;
+import org.raddatz.familienarchiv.document.transcription.CreateTranscriptionBlockDTO;
+import org.raddatz.familienarchiv.document.transcription.ReorderTranscriptionBlocksDTO;
+import org.raddatz.familienarchiv.document.transcription.UpdateTranscriptionBlockDTO;
+import org.raddatz.familienarchiv.document.annotation.AnnotationService;
 import org.raddatz.familienarchiv.exception.DomainException;
 import org.raddatz.familienarchiv.exception.ErrorCode;
-import org.raddatz.familienarchiv.model.BlockSource;
-import org.raddatz.familienarchiv.model.Document;
-import org.raddatz.familienarchiv.model.DocumentAnnotation;
-import org.raddatz.familienarchiv.model.ScriptType;
-import org.raddatz.familienarchiv.model.TranscriptionBlock;
-import org.raddatz.familienarchiv.model.TranscriptionBlockVersion;
-import org.raddatz.familienarchiv.repository.AnnotationRepository;
-import org.raddatz.familienarchiv.repository.TranscriptionBlockRepository;
-import org.raddatz.familienarchiv.repository.TranscriptionBlockVersionRepository;
+import org.raddatz.familienarchiv.document.BlockSource;
+import org.raddatz.familienarchiv.document.DocumentService;
+import org.raddatz.familienarchiv.document.Document;
+import org.raddatz.familienarchiv.document.annotation.DocumentAnnotation;
+import org.raddatz.familienarchiv.ocr.ScriptType;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionBlock;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionBlockVersion;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionBlockRepository;
+import org.raddatz.familienarchiv.document.transcription.TranscriptionBlockVersionRepository;
+import org.raddatz.familienarchiv.ocr.SenderModelService;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -37,7 +39,6 @@ public class TranscriptionService {
 
     private final TranscriptionBlockRepository blockRepository;
     private final TranscriptionBlockVersionRepository versionRepository;
-    private final AnnotationRepository annotationRepository;
     private final AnnotationService annotationService;
     private final DocumentService documentService;
     private final SenderModelService senderModelService;
@@ -47,6 +48,11 @@ public class TranscriptionService {
         return blockRepository.findByDocumentIdOrderBySortOrderAsc(documentId);
     }
 
+    @Transactional
+    public void deleteByAnnotationId(UUID annotationId) {
+        blockRepository.deleteByAnnotationId(annotationId);
+    }
+
     public TranscriptionBlock getBlock(UUID documentId, UUID blockId) {
         return blockRepository.findByIdAndDocumentId(blockId, documentId)
                 .orElseThrow(() -> DomainException.notFound(
@@ -134,13 +140,15 @@ public class TranscriptionService {
         if (dto.getLabel() != null) {
             block.setLabel(dto.getLabel());
         }
+        block.getMentionedPersons().clear();
+        block.getMentionedPersons().addAll(dto.getMentionedPersons());
         block.setUpdatedBy(userId);
 
         TranscriptionBlock saved = blockRepository.save(block);
         saveVersion(saved, userId);
 
         if (!text.equals(previousText)) {
-            Optional<DocumentAnnotation> annotation = annotationRepository.findById(block.getAnnotationId());
+            Optional<DocumentAnnotation> annotation = annotationService.findById(block.getAnnotationId());
             int pageNumber = annotation.map(DocumentAnnotation::getPageNumber).orElse(0);
             auditService.logAfterCommit(AuditKind.TEXT_SAVED, userId, documentId,
                     Map.of("pageNumber", pageNumber, "blockId", saved.getId().toString()));
@@ -163,7 +171,7 @@ public class TranscriptionService {
         // then delete the dependent annotation directly (no ownership check needed)
         blockRepository.delete(block);
         blockRepository.flush();
-        annotationRepository.deleteById(annotationId);
+        annotationService.deleteById(annotationId);
         log.info("Deleted transcription block {} and annotation {} for document {}",
                 blockId, annotationId, documentId);
     }
@@ -179,7 +187,7 @@ public class TranscriptionService {
 
         blockRepository.deleteAll(blocks);
         blockRepository.flush();
-        annotationRepository.deleteAllById(annotationIds);
+        annotationService.deleteAllById(annotationIds);
         log.info("Bulk-deleted {} transcription blocks for document {}", blocks.size(), documentId);
     }
 
@@ -205,6 +213,18 @@ public class TranscriptionService {
         return saved;
     }
 
+    @Transactional
+    public List<TranscriptionBlock> markAllBlocksReviewed(UUID documentId, UUID userId) {
+        List<TranscriptionBlock> blocks = blockRepository.findByDocumentIdOrderBySortOrderAsc(documentId);
+        for (TranscriptionBlock block : blocks) {
+            if (!block.isReviewed()) {
+                block.setReviewed(true);
+                auditService.logAfterCommit(AuditKind.BLOCK_REVIEWED, userId, documentId, null);
+            }
+        }
+        return blockRepository.saveAll(blocks);
+    }
+
     public List<TranscriptionBlockVersion> getBlockHistory(UUID documentId, UUID blockId) {
         getBlock(documentId, blockId);
         return versionRepository.findByBlockIdOrderByChangedAtDesc(blockId);

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/TranscriptionWeeklyStatsDTO.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.dto;
+package org.raddatz.familienarchiv.document.transcription;
 
 import io.swagger.v3.oas.annotations.media.Schema;
 

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/TranscriptionWeeklyStatsProjection.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.repository;
+package org.raddatz.familienarchiv.document.transcription;
 
 /**
  * Spring Data projection for the weekly activity pulse stats.

backend/src/main/java/org/raddatz/familienarchiv/document/transcription/UpdateTranscriptionBlockDTO.java

@@ -0,0 +1,24 @@
+package org.raddatz.familienarchiv.document.transcription;
+
+import jakarta.validation.Valid;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.raddatz.familienarchiv.document.transcription.PersonMention;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+public class UpdateTranscriptionBlockDTO {
+    private String text;
+    private String label;
+
+    @Valid
+    @Builder.Default
+    private List<PersonMention> mentionedPersons = new ArrayList<>();
+}

backend/src/main/java/org/raddatz/familienarchiv/dto/DocumentSearchResult.java

@@ -1,35 +0,0 @@
-package org.raddatz.familienarchiv.dto;
-
-import io.swagger.v3.oas.annotations.media.Schema;
-import org.raddatz.familienarchiv.model.Document;
-
-import java.util.List;
-import java.util.Map;
-import java.util.UUID;
-
-public record DocumentSearchResult(
-        @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
-        List<Document> documents,
-        @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
-        long total,
-        @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
-        Map<UUID, SearchMatchData> matchData
-) {
-    /**
-     * Creates a fully-enriched result from documents and their match overlay data.
-     * Absent map entries (e.g. document deleted between FTS and enrichment) are safe —
-     * the frontend treats a missing entry as "no match data".
-     */
-    public static DocumentSearchResult withMatchData(List<Document> documents, Map<UUID, SearchMatchData> matchData) {
-        return new DocumentSearchResult(documents, documents.size(), matchData);
-    }
-
-    /**
-     * Creates a result without match data — used for filter-only searches (no text query).
-     * No pagination yet — the full matched set is always returned.
-     * When pagination is added, total must come from a DB COUNT query, not list.size().
-     */
-    public static DocumentSearchResult of(List<Document> documents) {
-        return withMatchData(documents, Map.of());
-    }
-}

backend/src/main/java/org/raddatz/familienarchiv/dto/UpdateTranscriptionBlockDTO.java

@@ -1,13 +0,0 @@
-package org.raddatz.familienarchiv.dto;
-
-import lombok.AllArgsConstructor;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-
-@Data
-@NoArgsConstructor
-@AllArgsConstructor
-public class UpdateTranscriptionBlockDTO {
-    private String text;
-    private String label;
-}

backend/src/main/java/org/raddatz/familienarchiv/exception/ErrorCode.java

@@ -13,7 +13,8 @@ public enum ErrorCode {
     PERSON_NOT_FOUND,
     /** A person name alias with the given ID does not exist. 404 */
     ALIAS_NOT_FOUND,
-
+    /** The submitted personType value is not allowed (e.g. SKIP is import-only). 400 */
+    INVALID_PERSON_TYPE,
     // --- Documents ---
     /** A document with the given ID does not exist. 404 */
     DOCUMENT_NOT_FOUND,
@@ -38,6 +39,10 @@ public enum ErrorCode {
     /** A mass import is already in progress; only one can run at a time. 409 */
     IMPORT_ALREADY_RUNNING,
 
+    // --- Thumbnails ---
+    /** A thumbnail backfill is already in progress; only one can run at a time. 409 */
+    THUMBNAIL_BACKFILL_ALREADY_RUNNING,
+
     // --- Invites ---
     /** The invite code does not exist. 404 */
     INVITE_NOT_FOUND,
@@ -90,6 +95,18 @@ public enum ErrorCode {
     /** Internal inconsistency: expected training run row was not found after creation. 500 */
     OCR_TRAINING_CONFLICT,
 
+    // --- Relationships (Stammbaum) ---
+    /** A relationship row with the given ID does not exist. 404 */
+    RELATIONSHIP_NOT_FOUND,
+    /** Adding this relationship would create a cycle (e.g. reverse PARENT_OF already exists). 409 */
+    CIRCULAR_RELATIONSHIP,
+    /** A relationship with the same (person, relatedPerson, type) already exists. 409 */
+    DUPLICATE_RELATIONSHIP,
+
+    // --- Geschichten (Stories) ---
+    /** A Geschichte (story) with the given ID does not exist, or is a DRAFT and the caller lacks BLOG_WRITE. 404 */
+    GESCHICHTE_NOT_FOUND,
+
     // --- Tags ---
     /** A tag with the given ID does not exist. 404 */
     TAG_NOT_FOUND,
@@ -105,6 +122,10 @@ public enum ErrorCode {
     // --- Generic ---
     /** Request validation failed (missing or malformed fields). 400 */
     VALIDATION_ERROR,
+    /** Batch upload exceeds the maximum allowed file count per request. 400 */
+    BATCH_TOO_LARGE,
+    /** Bulk edit request exceeds the per-request document ID cap. 400 */
+    BULK_EDIT_TOO_MANY_IDS,
     /** An unexpected server-side error occurred. 500 */
     INTERNAL_ERROR,
 }

backend/src/main/java/org/raddatz/familienarchiv/exception/GlobalExceptionHandler.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.controller;
+package org.raddatz.familienarchiv.exception;
 
 import java.util.stream.Collectors;
 
@@ -6,6 +6,7 @@ import jakarta.validation.ConstraintViolationException;
 import org.raddatz.familienarchiv.exception.DomainException;
 import org.raddatz.familienarchiv.exception.ErrorCode;
 import org.springframework.http.ResponseEntity;
+import org.springframework.http.converter.HttpMessageNotReadableException;
 import org.springframework.web.bind.MethodArgumentNotValidException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
@@ -47,6 +48,12 @@ public class GlobalExceptionHandler {
         return ResponseEntity.badRequest().body(new ErrorResponse(ErrorCode.VALIDATION_ERROR, message));
     }
 
+    @ExceptionHandler(HttpMessageNotReadableException.class)
+    public ResponseEntity<ErrorResponse> handleMessageNotReadable(HttpMessageNotReadableException ex) {
+        return ResponseEntity.badRequest()
+                .body(new ErrorResponse(ErrorCode.VALIDATION_ERROR, "Invalid request body"));
+    }
+
     @ExceptionHandler(ResponseStatusException.class)
     public ResponseEntity<ErrorResponse> handleResponseStatus(ResponseStatusException ex) {
         return ResponseEntity.status(ex.getStatusCode())

backend/src/main/java/org/raddatz/familienarchiv/filestorage/FileService.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.service;
+package org.raddatz.familienarchiv.filestorage;
 
 import software.amazon.awssdk.core.ResponseInputStream;
 import software.amazon.awssdk.core.sync.RequestBody;
@@ -112,6 +112,27 @@ public class FileService {
         }
     }
 
+    /**
+     * Opens a streaming download from S3/MinIO. The caller is responsible for
+     * closing the returned stream — typically via try-with-resources. Preferred
+     * over {@link #downloadFileBytes(String)} for large files (multi-MB PDFs
+     * during thumbnail generation) because it avoids loading the entire file
+     * into heap memory.
+     */
+    public InputStream downloadFileStream(String s3Key) throws IOException {
+        try {
+            GetObjectRequest getObjectRequest = GetObjectRequest.builder()
+                    .bucket(bucketName)
+                    .key(s3Key)
+                    .build();
+            return s3Client.getObject(getObjectRequest);
+        } catch (NoSuchKeyException e) {
+            throw new StorageFileNotFoundException("File not found in storage: " + s3Key);
+        } catch (S3Exception e) {
+            throw new IOException("Failed to open stream from storage: " + e.getMessage(), e);
+        }
+    }
+
     /**
      * Generates a presigned URL for downloading an object from S3/MinIO.
      * Valid for 1 hour — covers multi-page documents on CPU-only OCR hardware

backend/src/main/java/org/raddatz/familienarchiv/geschichte/Geschichte.java

@@ -0,0 +1,72 @@
+package org.raddatz.familienarchiv.geschichte;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.persistence.*;
+import lombok.*;
+import org.hibernate.annotations.CreationTimestamp;
+import org.hibernate.annotations.UpdateTimestamp;
+
+import org.raddatz.familienarchiv.user.AppUser;
+import org.raddatz.familienarchiv.document.Document;
+import org.raddatz.familienarchiv.person.Person;
+import java.time.LocalDateTime;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.UUID;
+
+@Entity
+@Table(name = "geschichten")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+public class Geschichte {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.UUID)
+    @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+    private UUID id;
+
+    @Column(nullable = false)
+    @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+    private String title;
+
+    @Column(columnDefinition = "TEXT")
+    private String body;
+
+    @Enumerated(EnumType.STRING)
+    @Column(nullable = false)
+    @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+    @Builder.Default
+    private GeschichteStatus status = GeschichteStatus.DRAFT;
+
+    @ManyToOne
+    @JoinColumn(name = "author_id")
+    private AppUser author;
+
+    @ManyToMany(fetch = FetchType.EAGER)
+    @JoinTable(name = "geschichten_persons",
+            joinColumns = @JoinColumn(name = "geschichte_id"),
+            inverseJoinColumns = @JoinColumn(name = "person_id"))
+    @Builder.Default
+    private Set<Person> persons = new HashSet<>();
+
+    @ManyToMany(fetch = FetchType.EAGER)
+    @JoinTable(name = "geschichten_documents",
+            joinColumns = @JoinColumn(name = "geschichte_id"),
+            inverseJoinColumns = @JoinColumn(name = "document_id"))
+    @Builder.Default
+    private Set<Document> documents = new HashSet<>();
+
+    @CreationTimestamp
+    @Column(updatable = false)
+    @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+    private LocalDateTime createdAt;
+
+    @UpdateTimestamp
+    @Schema(requiredMode = Schema.RequiredMode.REQUIRED)
+    private LocalDateTime updatedAt;
+
+    @Column(name = "published_at")
+    private LocalDateTime publishedAt;
+}

backend/src/main/java/org/raddatz/familienarchiv/geschichte/GeschichteController.java

@@ -0,0 +1,69 @@
+package org.raddatz.familienarchiv.geschichte;
+
+import lombok.RequiredArgsConstructor;
+import org.raddatz.familienarchiv.geschichte.GeschichteUpdateDTO;
+import org.raddatz.familienarchiv.geschichte.Geschichte;
+import org.raddatz.familienarchiv.geschichte.GeschichteStatus;
+import org.raddatz.familienarchiv.security.Permission;
+import org.raddatz.familienarchiv.security.RequirePermission;
+import org.raddatz.familienarchiv.geschichte.GeschichteService;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PatchMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+import java.util.UUID;
+
+@RestController
+@RequestMapping("/api/geschichten")
+@RequiredArgsConstructor
+public class GeschichteController {
+
+    private final GeschichteService geschichteService;
+
+    @GetMapping
+    public List<Geschichte> list(
+            @RequestParam(required = false) GeschichteStatus status,
+            @RequestParam(name = "personId", required = false) List<UUID> personIds,
+            @RequestParam(required = false) UUID documentId,
+            @RequestParam(required = false, defaultValue = "50") int limit) {
+        return geschichteService.list(
+                status,
+                personIds == null ? List.of() : personIds,
+                documentId,
+                limit);
+    }
+
+    @GetMapping("/{id}")
+    public Geschichte getById(@PathVariable UUID id) {
+        return geschichteService.getById(id);
+    }
+
+    @PostMapping
+    @RequirePermission(Permission.BLOG_WRITE)
+    public ResponseEntity<Geschichte> create(@RequestBody GeschichteUpdateDTO dto) {
+        Geschichte created = geschichteService.create(dto);
+        return ResponseEntity.status(HttpStatus.CREATED).body(created);
+    }
+
+    @PatchMapping("/{id}")
+    @RequirePermission(Permission.BLOG_WRITE)
+    public Geschichte update(@PathVariable UUID id, @RequestBody GeschichteUpdateDTO dto) {
+        return geschichteService.update(id, dto);
+    }
+
+    @DeleteMapping("/{id}")
+    @RequirePermission(Permission.BLOG_WRITE)
+    public ResponseEntity<Void> delete(@PathVariable UUID id) {
+        geschichteService.delete(id);
+        return ResponseEntity.noContent().build();
+    }
+}

backend/src/main/java/org/raddatz/familienarchiv/geschichte/GeschichteRepository.java

@@ -0,0 +1,12 @@
+package org.raddatz.familienarchiv.geschichte;
+
+import org.raddatz.familienarchiv.geschichte.Geschichte;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
+import org.springframework.stereotype.Repository;
+
+import java.util.UUID;
+
+@Repository
+public interface GeschichteRepository extends JpaRepository<Geschichte, UUID>, JpaSpecificationExecutor<Geschichte> {
+}

backend/src/main/java/org/raddatz/familienarchiv/geschichte/GeschichteService.java

@@ -0,0 +1,196 @@
+package org.raddatz.familienarchiv.geschichte;
+
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.owasp.html.HtmlPolicyBuilder;
+import org.owasp.html.PolicyFactory;
+import org.raddatz.familienarchiv.geschichte.GeschichteUpdateDTO;
+import org.raddatz.familienarchiv.exception.DomainException;
+import org.raddatz.familienarchiv.exception.ErrorCode;
+import org.raddatz.familienarchiv.user.AppUser;
+import org.raddatz.familienarchiv.document.Document;
+import org.raddatz.familienarchiv.geschichte.Geschichte;
+import org.raddatz.familienarchiv.geschichte.GeschichteStatus;
+import org.raddatz.familienarchiv.person.Person;
+import org.raddatz.familienarchiv.geschichte.GeschichteRepository;
+import org.raddatz.familienarchiv.geschichte.GeschichteSpecifications;
+import org.raddatz.familienarchiv.security.Permission;
+import org.raddatz.familienarchiv.document.DocumentService;
+import org.raddatz.familienarchiv.person.PersonService;
+import org.raddatz.familienarchiv.user.UserService;
+import org.springframework.data.domain.Sort;
+import org.springframework.data.jpa.domain.Specification;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.time.LocalDateTime;
+import java.util.HashSet;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.UUID;
+
+@Service
+@RequiredArgsConstructor
+@Slf4j
+public class GeschichteService {
+
+    private final GeschichteRepository geschichteRepository;
+    private final PersonService personService;
+    private final DocumentService documentService;
+    private final UserService userService;
+
+    /**
+     * Allow-list policy for Geschichte body HTML. Tiptap on the writer side
+     * already constrains the marks/nodes, but the backend re-sanitises every
+     * save so that an attacker calling the API directly cannot inject more.
+     */
+    private static final PolicyFactory BODY_SANITIZER = new HtmlPolicyBuilder()
+            .allowElements("p", "br", "strong", "em", "h2", "h3", "ul", "ol", "li")
+            .toFactory();
+
+    private static final int DEFAULT_LIMIT = 50;
+    private static final int MAX_LIMIT = 200;
+
+    // ─── Read API ────────────────────────────────────────────────────────────
+
+    public Geschichte getById(UUID id) {
+        Geschichte g = geschichteRepository.findById(id)
+                .orElseThrow(() -> DomainException.notFound(
+                        ErrorCode.GESCHICHTE_NOT_FOUND, "Geschichte not found: " + id));
+        if (g.getStatus() == GeschichteStatus.DRAFT && !currentUserHasBlogWrite()) {
+            // Use NOT_FOUND, not FORBIDDEN — don't leak DRAFT existence.
+            throw DomainException.notFound(
+                    ErrorCode.GESCHICHTE_NOT_FOUND, "Geschichte not found: " + id);
+        }
+        return g;
+    }
+
+    /**
+     * Lists Geschichten with optional filters. {@code personIds} uses AND semantics: the story
+     * must be associated with every person id supplied. An empty or null list applies no
+     * person filter. Result is ordered by {@code COALESCE(publishedAt, updatedAt) DESC}.
+     */
+    public List<Geschichte> list(GeschichteStatus status, List<UUID> personIds, UUID documentId, int limit) {
+        GeschichteStatus effective = currentUserHasBlogWrite() ? status : GeschichteStatus.PUBLISHED;
+        int safeLimit = limit <= 0 ? DEFAULT_LIMIT : Math.min(limit, MAX_LIMIT);
+
+        Specification<Geschichte> spec = Specification.allOf(
+                GeschichteSpecifications.hasStatus(effective),
+                GeschichteSpecifications.hasAllPersons(personIds),
+                GeschichteSpecifications.hasDocument(documentId),
+                GeschichteSpecifications.orderByDisplayDateDesc()
+        );
+        return geschichteRepository.findAll(spec, Sort.unsorted())
+                .stream()
+                .limit(safeLimit)
+                .toList();
+    }
+
+    // ─── Write API ───────────────────────────────────────────────────────────
+
+    @Transactional
+    public Geschichte create(GeschichteUpdateDTO dto) {
+        requireTitle(dto.getTitle());
+        Geschichte g = Geschichte.builder()
+                .title(dto.getTitle().trim())
+                .body(sanitize(dto.getBody()))
+                .status(GeschichteStatus.DRAFT)
+                .author(currentUser())
+                .persons(resolvePersons(dto.getPersonIds()))
+                .documents(resolveDocuments(dto.getDocumentIds()))
+                .build();
+        if (dto.getStatus() == GeschichteStatus.PUBLISHED) {
+            g.setStatus(GeschichteStatus.PUBLISHED);
+            g.setPublishedAt(LocalDateTime.now());
+        }
+        return geschichteRepository.save(g);
+    }
+
+    @Transactional
+    public Geschichte update(UUID id, GeschichteUpdateDTO dto) {
+        Geschichte g = geschichteRepository.findById(id)
+                .orElseThrow(() -> DomainException.notFound(
+                        ErrorCode.GESCHICHTE_NOT_FOUND, "Geschichte not found: " + id));
+        if (dto.getTitle() != null) {
+            requireTitle(dto.getTitle());
+            g.setTitle(dto.getTitle().trim());
+        }
+        if (dto.getBody() != null) {
+            g.setBody(sanitize(dto.getBody()));
+        }
+        if (dto.getPersonIds() != null) {
+            g.setPersons(resolvePersons(dto.getPersonIds()));
+        }
+        if (dto.getDocumentIds() != null) {
+            g.setDocuments(resolveDocuments(dto.getDocumentIds()));
+        }
+        if (dto.getStatus() != null && dto.getStatus() != g.getStatus()) {
+            applyStatusTransition(g, dto.getStatus());
+        }
+        return geschichteRepository.save(g);
+    }
+
+    @Transactional
+    public void delete(UUID id) {
+        if (!geschichteRepository.existsById(id)) {
+            throw DomainException.notFound(
+                    ErrorCode.GESCHICHTE_NOT_FOUND, "Geschichte not found: " + id);
+        }
+        geschichteRepository.deleteById(id);
+    }
+
+    // ─── private helpers ─────────────────────────────────────────────────────
+
+    private void applyStatusTransition(Geschichte g, GeschichteStatus next) {
+        g.setStatus(next);
+        if (next == GeschichteStatus.PUBLISHED) {
+            g.setPublishedAt(LocalDateTime.now());
+        } else {
+            g.setPublishedAt(null);
+        }
+    }
+
+    private void requireTitle(String title) {
+        if (title == null || title.trim().isEmpty()) {
+            throw DomainException.badRequest(
+                    ErrorCode.VALIDATION_ERROR, "Title is required");
+        }
+    }
+
+    private String sanitize(String body) {
+        if (body == null) return null;
+        return BODY_SANITIZER.sanitize(body);
+    }
+
+    private Set<Person> resolvePersons(List<UUID> ids) {
+        if (ids == null || ids.isEmpty()) return new HashSet<>();
+        return new LinkedHashSet<>(personService.getAllById(ids));
+    }
+
+    private Set<Document> resolveDocuments(List<UUID> ids) {
+        if (ids == null || ids.isEmpty()) return new HashSet<>();
+        Set<Document> out = new LinkedHashSet<>();
+        for (UUID id : ids) {
+            out.add(documentService.getDocumentById(id));
+        }
+        return out;
+    }
+
+    private AppUser currentUser() {
+        Authentication auth = SecurityContextHolder.getContext().getAuthentication();
+        if (auth == null || !auth.isAuthenticated()) {
+            throw DomainException.unauthorized("Authentication required");
+        }
+        return userService.findByEmail(auth.getName());
+    }
+
+    private boolean currentUserHasBlogWrite() {
+        Authentication auth = SecurityContextHolder.getContext().getAuthentication();
+        if (auth == null || !auth.isAuthenticated()) return false;
+        return auth.getAuthorities().stream()
+                .anyMatch(a -> Permission.BLOG_WRITE.name().equals(a.getAuthority()));
+    }
+}

backend/src/main/java/org/raddatz/familienarchiv/geschichte/GeschichteSpecifications.java

@@ -0,0 +1,91 @@
+package org.raddatz.familienarchiv.geschichte;
+
+import jakarta.persistence.criteria.CriteriaBuilder;
+import jakarta.persistence.criteria.CriteriaQuery;
+import jakarta.persistence.criteria.Join;
+import jakarta.persistence.criteria.Predicate;
+import jakarta.persistence.criteria.Root;
+import jakarta.persistence.criteria.Subquery;
+import org.raddatz.familienarchiv.document.Document;
+import org.raddatz.familienarchiv.geschichte.Geschichte;
+import org.raddatz.familienarchiv.geschichte.GeschichteStatus;
+import org.raddatz.familienarchiv.person.Person;
+import org.springframework.data.jpa.domain.Specification;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.UUID;
+
+public final class GeschichteSpecifications {
+
+    private GeschichteSpecifications() {}
+
+    public static Specification<Geschichte> hasStatus(GeschichteStatus status) {
+        return (root, query, cb) -> status == null ? null : cb.equal(root.get("status"), status);
+    }
+
+    /**
+     * Adds {@code ORDER BY COALESCE(publishedAt, updatedAt) DESC} to the query without contributing
+     * a predicate. Combined into the spec chain via {@code .and(...)}; the {@code conjunction}
+     * acts as a no-op WHERE clause.
+     */
+    public static Specification<Geschichte> orderByDisplayDateDesc() {
+        return (root, query, cb) -> {
+            // Skip ordering on count queries — JPA forbids orderBy on COUNT projections.
+            if (query != null
+                    && Long.class != query.getResultType()
+                    && long.class != query.getResultType()) {
+                query.orderBy(cb.desc(cb.coalesce(root.get("publishedAt"), root.get("updatedAt"))));
+            }
+            return cb.conjunction();
+        };
+    }
+
+    public static Specification<Geschichte> hasDocument(UUID documentId) {
+        return (root, query, cb) -> {
+            if (documentId == null) return null;
+            return cb.exists(documentSubquery(root, query, cb, documentId));
+        };
+    }
+
+    /**
+     * AND-filter across persons: the Geschichte must be associated with EVERY id in {@code personIds}.
+     *
+     * <p>Implemented as one EXISTS subquery per id (canonical Criteria-API idiom for AND across a
+     * many-to-many join). Mirrors {@link DocumentSpecifications#hasTags} which uses the same shape.
+     * Empty / null input returns {@code null} (i.e. no constraint added).
+     */
+    public static Specification<Geschichte> hasAllPersons(Collection<UUID> personIds) {
+        return (root, query, cb) -> {
+            if (personIds == null || personIds.isEmpty()) return null;
+            List<Predicate> predicates = new ArrayList<>(personIds.size());
+            for (UUID id : personIds) {
+                predicates.add(cb.exists(personSubquery(root, query, cb, id)));
+            }
+            return cb.and(predicates.toArray(new Predicate[0]));
+        };
+    }
+
+    private static Subquery<UUID> personSubquery(
+            Root<Geschichte> root, CriteriaQuery<?> query, CriteriaBuilder cb, UUID personId) {
+        Subquery<UUID> sub = query.subquery(UUID.class);
+        Root<Geschichte> subRoot = sub.from(Geschichte.class);
+        Join<Geschichte, Person> persons = subRoot.join("persons");
+        sub.select(subRoot.get("id"))
+                .where(cb.equal(subRoot.get("id"), root.get("id")),
+                        cb.equal(persons.get("id"), personId));
+        return sub;
+    }
+
+    private static Subquery<UUID> documentSubquery(
+            Root<Geschichte> root, CriteriaQuery<?> query, CriteriaBuilder cb, UUID documentId) {
+        Subquery<UUID> sub = query.subquery(UUID.class);
+        Root<Geschichte> subRoot = sub.from(Geschichte.class);
+        Join<Geschichte, Document> documents = subRoot.join("documents");
+        sub.select(subRoot.get("id"))
+                .where(cb.equal(subRoot.get("id"), root.get("id")),
+                        cb.equal(documents.get("id"), documentId));
+        return sub;
+    }
+}

backend/src/main/java/org/raddatz/familienarchiv/geschichte/GeschichteStatus.java

@@ -0,0 +1,6 @@
+package org.raddatz.familienarchiv.geschichte;
+
+public enum GeschichteStatus {
+    DRAFT,
+    PUBLISHED
+}

backend/src/main/java/org/raddatz/familienarchiv/geschichte/GeschichteUpdateDTO.java

@@ -0,0 +1,21 @@
+package org.raddatz.familienarchiv.geschichte;
+
+import lombok.Data;
+import org.raddatz.familienarchiv.geschichte.GeschichteStatus;
+
+import java.util.List;
+import java.util.UUID;
+
+/**
+ * Used for both create and update of a Geschichte. All fields are optional;
+ * the service applies whatever is non-null. {@code body} is rich-text HTML and
+ * is sanitised against an allow-list before persistence.
+ */
+@Data
+public class GeschichteUpdateDTO {
+    private String title;
+    private String body;
+    private GeschichteStatus status;
+    private List<UUID> personIds;
+    private List<UUID> documentIds;
+}

backend/src/main/java/org/raddatz/familienarchiv/importing/MassImportService.java

@@ -1,4 +1,4 @@
-package org.raddatz.familienarchiv.service;
+package org.raddatz.familienarchiv.importing;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
@@ -6,11 +6,16 @@ import org.apache.poi.ss.usermodel.*;
 import java.util.Objects;
 import org.raddatz.familienarchiv.exception.DomainException;
 import org.raddatz.familienarchiv.exception.ErrorCode;
-import org.raddatz.familienarchiv.model.Document;
-import org.raddatz.familienarchiv.model.DocumentStatus;
-import org.raddatz.familienarchiv.model.Person;
-import org.raddatz.familienarchiv.model.Tag;
-import org.raddatz.familienarchiv.repository.DocumentRepository;
+import org.raddatz.familienarchiv.document.Document;
+import org.raddatz.familienarchiv.document.DocumentService;
+import org.raddatz.familienarchiv.document.DocumentStatus;
+import org.raddatz.familienarchiv.document.ThumbnailAsyncRunner;
+import org.raddatz.familienarchiv.person.Person;
+import org.raddatz.familienarchiv.tag.Tag;
+import org.raddatz.familienarchiv.person.Person;
+import org.raddatz.familienarchiv.person.PersonNameParser;
+import org.raddatz.familienarchiv.person.PersonService;
+import org.raddatz.familienarchiv.tag.TagService;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.scheduling.annotation.Async;
 import org.springframework.stereotype.Service;
@@ -55,10 +60,11 @@ public class MassImportService {
         return currentStatus;
     }
 
-    private final DocumentRepository documentRepository;
+    private final DocumentService documentService;
     private final PersonService personService;
     private final TagService tagService;
     private final S3Client s3Client;
+    private final ThumbnailAsyncRunner thumbnailAsyncRunner;
 
     @Value("${app.s3.bucket}")
     private String bucketName;
@@ -256,7 +262,7 @@ public class MassImportService {
 
     @Transactional
     protected void importSingleDocument(List<String> cells, Optional<File> file, String originalFilename, String index) {
-        Optional<Document> existing = documentRepository.findByOriginalFilename(originalFilename);
+        Optional<Document> existing = documentService.findByOriginalFilename(originalFilename);
         if (existing.isPresent() && existing.get().getStatus() != DocumentStatus.PLACEHOLDER) {
             log.info("Dokument {} existiert bereits, überspringe.", originalFilename);
             return;
@@ -332,7 +338,10 @@ public class MassImportService {
         if (tag != null) doc.getTags().add(tag);
         doc.setMetadataComplete(metadataComplete);
 
-        documentRepository.save(doc);
+        Document saved = documentService.save(doc);
+        if (file.isPresent()) {
+            thumbnailAsyncRunner.dispatchAfterCommit(saved.getId());
+        }
         log.info("Importiert{}: {}", file.isEmpty() ? " (nur Metadaten)" : "", originalFilename);
     }