feat(lesereisen): implement lesereisen

docs/architecture/c4/l3-backend-3g-supporting.puml

@@ -16,8 +16,11 @@ System_Boundary(backend, "API Backend (Spring Boot)") {
     Component(notifCtrl, "NotificationController", "Spring MVC — /api/notifications", "REST and SSE endpoints for notification stream, history with filtering, read/unread state, and per-user preference management.")
     Component(notifSvc, "NotificationService", "Spring Service", "Creates REPLY and MENTION notifications, optionally sends email, marks as read, and pushes events to connected clients via SseEmitterRegistry.")
     Component(sseRegistry, "SseEmitterRegistry", "Spring Component", "In-memory ConcurrentHashMap of Spring SseEmitter instances per user. Handles registration, deregistration, and JSON event broadcasts.")
-    Component(geschCtrl, "GeschichteController", "Spring MVC — /api/geschichten", "CRUD for publishable stories that link persons and documents. Requires BLOG_WRITE permission for write operations.")
-    Component(geschSvc, "GeschichteService", "Spring Service", "Manages story lifecycle (DRAFT → PUBLISHED with timestamp). Sanitizes HTML body with an allowlist policy.")
+    Component(geschCtrl, "GeschichteController", "Spring MVC — /api/geschichten", "CRUD for publishable stories (STORY) and reading journeys (JOURNEY). Returns GeschichteSummary projections for list; full Geschichte with JourneyItems for detail. Requires BLOG_WRITE permission for write operations.")
+    Component(geschSvc, "GeschichteService", "Spring Service", "Manages story lifecycle (DRAFT → PUBLISHED with timestamp). Supports two subtypes: STORY (prose) and JOURNEY (ordered JourneyItem sequence). Sanitizes HTML body with an allowlist policy.")
+    Component(geschQuerySvc, "GeschichteQueryService", "Spring Service", "Read-only facade over GeschichteRepository. Exposes existsById() and findById() to prevent JourneyItemService from crossing domain boundaries.")
+    Component(journeyItemSvc, "JourneyItemService", "Spring Service", "Manages journey item lifecycle: append (100-item cap), updateNote (three-way PATCH), delete, and reorder (DEFERRABLE position swap). Serves both STORY and JOURNEY subtypes.")
+    Component(journeyListener, "JourneyItemDocumentDeleteListener", "Spring @EventListener", "Consumes DocumentDeletingEvent synchronously inside the delete transaction and removes note-less journey items before ON DELETE SET NULL fires, preventing a chk_journey_item_not_empty violation. See ADR-038.")
     Component(exHandler, "GlobalExceptionHandler", "Spring @RestControllerAdvice", "Converts DomainException, validation errors, and generic exceptions to ErrorResponse JSON with machine-readable ErrorCode and HTTP status.")
 }
 
@@ -38,6 +41,12 @@ Rel(notifCtrl, notifSvc, "Delegates to")
 Rel(notifCtrl, sseRegistry, "Registers client SSE connection")
 Rel(notifSvc, sseRegistry, "Broadcasts events to connected clients")
 Rel(geschCtrl, geschSvc, "Delegates to")
+Rel(geschCtrl, journeyItemSvc, "Delegates journey item CRUD")
+Rel(journeyItemSvc, geschQuerySvc, "Checks Geschichte existence")
+Rel(geschQuerySvc, db, "Reads geschichten", "JDBC")
+Rel(journeyItemSvc, db, "Reads / writes journey_items", "JDBC")
+Rel(documentSvc, journeyListener, "DocumentDeletingEvent", "in-process event")
+Rel(journeyListener, db, "Deletes note-less journey_items", "JDBC")
 Rel(auditSvc, db, "Writes audit_log", "JDBC")
 Rel(auditQuery, db, "Reads audit_log", "JDBC")
 Rel(notifSvc, db, "Reads / writes notifications", "JDBC")

docs/architecture/c4/l3-frontend-3c-people-stories.puml

@@ -11,8 +11,8 @@ System_Boundary(frontend, "Web Frontend (SvelteKit / SSR)") {
     Component(personEdit, "/persons/[id]/edit and /persons/new", "SvelteKit Routes", "Create and edit person forms. Edit: metadata, aliases, explicit relationships. Actions: PUT/POST /api/persons.")
     Component(personReview, "/persons/review", "SvelteKit Route", "Transcriber triage view (WRITE-gated link). Lists provisional persons; per-row Merge / Umbenennen / Bestätigen / Löschen. Actions: POST /merge, PUT /{id}, PATCH /{id}/confirm, DELETE /{id}.")
     Component(aktivitaeten, "/aktivitaeten", "SvelteKit Route", "Unified activity feed (Chronik). Loader: GET /api/dashboard/activity and GET /api/notifications?read=false.")
-    Component(geschichten, "/geschichten and /geschichten/[id]", "SvelteKit Routes", "Story list and detail pages. Loader: GET /api/geschichten?status=PUBLISHED.")
-    Component(geschichtenEdit, "/geschichten/[id]/edit and /geschichten/new", "SvelteKit Routes", "Story editor with rich text, person and document linking. Actions: PUT/POST /api/geschichten. Requires BLOG_WRITE permission.")
+    Component(geschichten, "/geschichten and /geschichten/[id]", "SvelteKit Routes", "Story/Journey list and detail pages. List: GeschichteListRow with REISE badge for JOURNEY type. Detail: dispatches to StoryReader (rich text + persons) or JourneyReader (intro + ordered JourneyItemCard/JourneyInterlude items + empty state) based on GeschichteType. BLOG_WRITE users see edit/delete actions. Loader: GET /api/geschichten, GET /api/geschichten/{id}.")
+    Component(geschichtenEdit, "/geschichten/[id]/edit and /geschichten/new", "SvelteKit Routes", "Story editor and creation flow. New: TypeSelector (STORY/JOURNEY radio group with roving tabindex) → StoryCreate (TipTap rich text, person linking, POST /api/geschichten) or JourneyCreate (title + first item). Edit: branches on GeschichteType — STORY opens GeschichteEditor (TipTap body + GeschichteSidebar incl. StoryDocumentPanel: document linking via POST/DELETE /items); JOURNEY opens JourneyEditor (title, intro textarea, ordered JourneyItemRow list with drag-reorder + move-up/down, JourneyAddBar for document/interlude addition, GeschichteSidebar). JourneyEditor mutations: POST/DELETE /items, PUT /items/reorder, PATCH /items/{id}. Requires BLOG_WRITE permission.")
     Component(stammbaum, "/stammbaum", "SvelteKit Route", "Family tree visualisation. Loader: GET /api/network (nodes + edges). Renders interactive family tree from network graph data.")
     Component(themen, "/themen", "SvelteKit Route", "Browsable topic index. Shows all root tags as cards with color bars and child rows. ThemenWidget also embedded in the home dashboard (reader + editor sidebar). Loader: GET /api/tags/tree.")
     Component(profilePage, "/profile", "SvelteKit Route", "Current user profile settings. Loader: GET /api/users/me/notification-preferences. Actions: update name/password and notification preferences.")
@@ -24,8 +24,8 @@ Rel(personsPage, backend, "GET /api/persons (filter + page params -> PersonSearc
 Rel(personEdit, backend, "GET /api/persons/{id}, PUT /api/persons/{id}, POST /api/persons", "HTTP / JSON")
 Rel(personReview, backend, "GET /api/persons?provisional=true, PATCH /api/persons/{id}/confirm, DELETE /api/persons/{id}, POST /api/persons/{id}/merge", "HTTP / JSON")
 Rel(aktivitaeten, backend, "GET /api/dashboard/activity, GET /api/notifications", "HTTP / JSON")
-Rel(geschichten, backend, "GET /api/geschichten", "HTTP / JSON")
-Rel(geschichtenEdit, backend, "GET/PUT/POST /api/geschichten", "HTTP / JSON")
+Rel(geschichten, backend, "GET /api/geschichten, GET /api/geschichten/{id}, DELETE /api/geschichten/{id}", "HTTP / JSON")
+Rel(geschichtenEdit, backend, "GET /api/persons/{id} (pre-populate), POST /api/geschichten, PUT /api/geschichten/{id}, POST/DELETE /api/geschichten/{id}/items, PUT /api/geschichten/{id}/items/reorder, PATCH /api/geschichten/{id}/items/{itemId}", "HTTP / JSON")
 Rel(stammbaum, backend, "GET /api/network", "HTTP / JSON")
 Rel(themen, backend, "GET /api/tags/tree", "HTTP / JSON")
 Rel(profilePage, backend, "GET/PUT /api/users/me, notification-preferences", "HTTP / JSON")