feat(bulk-edit): extend BulkDocumentEditLayout with mode="edit"

- New FieldLabelBadge component (additive / replace variants, WCAG AA contrast)
- WhoWhenSection: hideDate prop, editMode prop renders badges next to sender
  and receivers, hides the meta_location field
- DescriptionSection: editMode prop renders badges next to tags and archive
  fields; new bindable archiveBox / archiveFolder inputs only in editMode
- PersonTypeahead: optional badge prop forwards to FieldLabelBadge
- FileSwitcherStrip FileEntry: file is now optional, documentId added so
  edit-mode entries reference an existing document by UUID
- BulkDocumentEditLayout: mode prop branches drop zone / read-only title /
  callout / save handler. Edit save chunks 500 IDs per PATCH, stops on chunk
  failure with retry, marks per-document errors as chips, clears the bulk
  selection store on full success.

Refs #225

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

frontend/src/lib/components/PersonTypeahead.svelte

@@ -4,6 +4,7 @@ import type { components } from '$lib/generated/api';
 import { m } from '$lib/paraglide/messages.js';
 import { clickOutside } from '$lib/actions/clickOutside';
 import { createTypeahead } from '$lib/hooks/useTypeahead.svelte';
+import FieldLabelBadge from './document/FieldLabelBadge.svelte';
 type Person = components['schemas']['Person'];
 
 interface Props {
@@ -18,6 +19,7 @@ interface Props {
 	autofocus?: boolean;
 	required?: boolean;
 	restrictToCorrespondentsOf?: string;
+	badge?: 'additive' | 'replace';
 	onchange?: (value: string) => void;
 	onfocused?: () => void;
 }
@@ -34,6 +36,7 @@ let {
 	autofocus = false,
 	required = false,
 	restrictToCorrespondentsOf,
+	badge,
 	onchange,
 	onfocused
 }: Props = $props();
@@ -116,7 +119,7 @@ function selectPerson(person: Person) {
 		class={compact
 			? 'block text-xs font-bold tracking-wide text-ink-3 uppercase'
 			: 'block text-sm font-medium text-ink-2'}
-		>{label}{#if required}*{/if}</label
+		>{label}{#if required}*{/if}{#if badge}<FieldLabelBadge variant={badge} />{/if}</label
 	>
 
 	<input type="hidden" name={name} bind:value={value} />

frontend/src/lib/components/document/BulkDocumentEditLayout.svelte

@@ -5,6 +5,7 @@ import { onDestroy, untrack } from 'svelte';
 import { m } from '$lib/paraglide/messages.js';
 import { getConfirmService } from '$lib/services/confirm.svelte.js';
 import type { ConfirmService } from '$lib/services/confirm.svelte.js';
+import { bulkSelectionStore } from '$lib/stores/bulkSelection.svelte';
 import BulkDropZone from './BulkDropZone.svelte';
 import FileSwitcherStrip from './FileSwitcherStrip.svelte';
 import type { FileEntry } from './FileSwitcherStrip.svelte';
@@ -19,6 +20,12 @@ import type { components } from '$lib/generated/api';
 
 type Person = components['schemas']['Person'];
 
+export type BulkEditEntry = {
+	documentId: string;
+	title: string;
+	pdfUrl: string;
+};
+
 // Optional — not available in unit tests that don't provide CONFIRM_KEY context.
 let _confirmService: ConfirmService | null;
 try {
@@ -28,13 +35,17 @@ try {
 }
 
 let {
+	mode = 'upload',
 	initialSenderId = '',
 	initialSenderName = '',
-	initialReceivers = []
+	initialReceivers = [],
+	initialEditEntries = []
 }: {
+	mode?: 'upload' | 'edit';
 	initialSenderId?: string;
 	initialSenderName?: string;
 	initialReceivers?: Person[];
+	initialEditEntries?: BulkEditEntry[];
 } = $props();
 
 // --- File state ---
@@ -42,12 +53,35 @@ let files = new SvelteMap<string, FileEntry>();
 let activeId = $state<string | null>(null);
 let chunkProgress = $state<{ done: number; total: number } | undefined>(undefined);
 let saving = $state(false);
+// Partial-failure surface: when set, the last save aborted at chunk N of M.
+let partialSaved = $state<{ done: number; total: number } | null>(null);
 
 // --- Shared metadata ---
 let senderId = $state(untrack(() => initialSenderId));
 let selectedReceivers = $state<Person[]>(untrack(() => initialReceivers));
 let dateIso = $state('');
 let tags = $state<Tag[]>([]);
+// Bulk-edit only — replace-on-non-blank semantics.
+let documentLocation = $state('');
+let archiveBox = $state('');
+let archiveFolder = $state('');
+
+// Hydrate edit-mode entries on mount. The IDs in bulkSelectionStore drive the
+// fetch upstream in the route — by the time this layout mounts, the metadata
+// has already been resolved into `initialEditEntries`.
+if (mode === 'edit') {
+	for (const entry of untrack(() => initialEditEntries)) {
+		const id = entry.documentId; // reuse documentId as the local FileEntry key
+		files.set(id, {
+			id,
+			documentId: entry.documentId,
+			title: entry.title,
+			status: 'idle',
+			previewUrl: entry.pdfUrl
+		});
+		if (!activeId) activeId = id;
+	}
+}
 
 // --- Derived ---
 const isMulti = $derived(files.size >= 2);
@@ -105,10 +139,8 @@ onDestroy(() => {
 	}
 });
 
-// --- Save ---
+// --- Save (upload mode) ---
-async function save() {
+async function saveUpload() {
-	if (saving) return;
-	saving = true;
 	const entries = Array.from(files.values());
 	// 10 files per request keeps multipart bodies well under typical reverse-proxy limits (e.g. nginx default 1 MB client_max_body_size per PDF).
 	const chunkSize = 10;
@@ -122,7 +154,7 @@ async function save() {
 	for (let i = 0; i < chunks.length; i++) {
 		const chunk = chunks[i];
 		const formData = new FormData();
-		chunk.forEach((entry) => formData.append('files', entry.file));
+		chunk.forEach((entry) => entry.file && formData.append('files', entry.file));
 		const metadata = {
 			titles: chunk.map((e) => e.title),
 			senderId: senderId || null,
@@ -143,8 +175,8 @@ async function save() {
 			if (!res.ok || errorFilenames.size > 0) {
 				hadErrors = true;
 				for (const entry of chunk) {
-					// When backend names specific files, mark only those; otherwise mark all.
+					const filename = entry.file?.name;
-					const isError = errorFilenames.size > 0 ? errorFilenames.has(entry.file.name) : true;
+					const isError = errorFilenames.size > 0 && filename ? errorFilenames.has(filename) : true;
 					if (isError) {
 						const e = files.get(entry.id);
 						if (e) files.set(entry.id, { ...e, status: 'error' });
@@ -160,9 +192,97 @@ async function save() {
 		}
 		chunkProgress = { done: i + 1, total: chunks.length };
 	}
-	saving = false;
 	if (!hadErrors) goto('/documents');
 }
+
+// --- Save (edit mode) ---
+async function saveBulkEdit() {
+	const entries = Array.from(files.values());
+	const ids = entries.map((e) => e.documentId).filter((x): x is string => !!x);
+
+	// PATCH cap matches backend: 500 IDs per request. Sequential, stop on chunk
+	// failure so the user sees a deterministic "X of N saved" outcome.
+	const chunkSize = 500;
+	const chunks: string[][] = [];
+	for (let i = 0; i < ids.length; i += chunkSize) {
+		chunks.push(ids.slice(i, i + chunkSize));
+	}
+	chunkProgress = { done: 0, total: chunks.length };
+	partialSaved = null;
+
+	const dto = {
+		tagNames: tags.map((t) => t.name),
+		senderId: senderId || null,
+		receiverIds: selectedReceivers.map((r) => r.id),
+		documentLocation: documentLocation || null,
+		archiveBox: archiveBox || null,
+		archiveFolder: archiveFolder || null
+	};
+
+	for (let i = 0; i < chunks.length; i++) {
+		const chunk = chunks[i];
+		try {
+			const res = await fetch('/api/documents/bulk', {
+				method: 'PATCH',
+				headers: { 'Content-Type': 'application/json' },
+				body: JSON.stringify({ ...dto, documentIds: chunk })
+			});
+			if (!res.ok) {
+				// Network/server failure: the chunk did not apply. Mark its entries
+				// as errored, surface partial-save state, and stop.
+				for (const id of chunk) {
+					const e = files.get(id);
+					if (e) files.set(id, { ...e, status: 'error' });
+				}
+				partialSaved = { done: i, total: chunks.length };
+				return;
+			}
+			const body = (await res.json().catch(() => null)) as {
+				updated: number;
+				errors: { id: string; message: string }[];
+			} | null;
+			if (body && body.errors && body.errors.length > 0) {
+				for (const err of body.errors) {
+					const e = files.get(err.id);
+					if (e) files.set(err.id, { ...e, status: 'error' });
+				}
+			}
+		} catch {
+			for (const id of chunk) {
+				const e = files.get(id);
+				if (e) files.set(id, { ...e, status: 'error' });
+			}
+			partialSaved = { done: i, total: chunks.length };
+			return;
+		}
+		chunkProgress = { done: i + 1, total: chunks.length };
+	}
+
+	const stillErrored = Array.from(files.values()).some((e) => e.status === 'error');
+	if (!stillErrored) {
+		bulkSelectionStore.clear();
+		goto('/documents');
+	}
+}
+
+async function save() {
+	if (saving) return;
+	saving = true;
+	try {
+		if (mode === 'edit') {
+			await saveBulkEdit();
+		} else {
+			await saveUpload();
+		}
+	} finally {
+		saving = false;
+	}
+}
+
+async function retrySave() {
+	partialSaved = null;
+	await save();
+}
 </script>
 
 <div class="fixed inset-x-0 bottom-0 flex flex-col" style="top: var(--header-height)">
@@ -213,11 +333,11 @@ async function save() {
 	<div class="flex flex-1 overflow-hidden">
 		<!-- Left: PDF preview / drop zone (55%) -->
 		<div class="relative flex flex-[55] flex-col overflow-hidden border-r border-line bg-pdf-bg">
-			{#if files.size === 0}
+			{#if mode === 'upload' && files.size === 0}
-				<!-- N=0: centred drop-zone box fills the panel -->
+				<!-- N=0: centred drop-zone box fills the panel (upload only) -->
 				<BulkDropZone onFilesAdded={addFiles} />
-			{:else}
+			{:else if files.size > 0}
-				<!-- N≥1: real PDF preview via local blob URL -->
+				<!-- PDF preview: blob URL in upload mode, server URL in edit mode -->
 				<div class="relative flex-1 overflow-hidden">
 					{#if activeFile}
 						<PdfViewer url={activeFile.previewUrl} />
@@ -243,22 +363,44 @@ async function save() {
 				class:opacity-60={files.size === 0}
 				class:pointer-events-none={files.size === 0}
 			>
+				{#if mode === 'edit'}
+					<!-- Onboarding callout: tells the user that empty fields are skipped
+						 and that tags/receivers are added rather than replaced. -->
+					<div
+						role="note"
+						aria-label="Hinweis zur Massenbearbeitung"
+						data-testid="bulk-edit-callout"
+						class="rounded-sm border border-accent/40 bg-accent/15 px-4 py-3 text-sm text-ink-2"
+					>
+						{m.bulk_edit_hint()}
+					</div>
+				{/if}
+
 				{#if isMulti}
 					<!-- N≥2: per-file card (title) + shared card (metadata) -->
 					<ScopeCard variant="per-file">
 						{#if activeFile}
-							<label class="block">
+							{#if mode === 'edit'}
-								<span class="mb-1 block text-xs font-medium tracking-widest text-ink-2 uppercase">
+								<div data-testid="readonly-title">
-									{m.form_label_title()} <span class="text-danger">*</span>
+									<span class="mb-1 block text-xs font-medium tracking-widest text-ink-2 uppercase">
-								</span>
+										{m.form_label_title()}
-								<input
+									</span>
-									type="text"
+									<p class="font-serif text-base text-ink">{activeFile.title}</p>
-									value={activeFile.title}
+								</div>
-									oninput={(e) =>
+							{:else}
-										setTitle(activeId!, (e.currentTarget as HTMLInputElement).value)}
+								<label class="block">
-									class="block w-full rounded-sm border border-line bg-surface p-2 text-sm focus:border-accent focus:outline-none"
+									<span class="mb-1 block text-xs font-medium tracking-widest text-ink-2 uppercase">
-								/>
+										{m.form_label_title()} <span class="text-danger">*</span>
-							</label>
+									</span>
+									<input
+										type="text"
+										value={activeFile.title}
+										oninput={(e) =>
+											setTitle(activeId!, (e.currentTarget as HTMLInputElement).value)}
+										class="block w-full rounded-sm border border-line bg-surface p-2 text-sm focus:border-accent focus:outline-none"
+									/>
+								</label>
+							{/if}
 						{/if}
 					</ScopeCard>
 
@@ -268,33 +410,51 @@ async function save() {
 							bind:selectedReceivers={selectedReceivers}
 							bind:dateIso={dateIso}
 							initialSenderName={initialSenderName}
+							hideDate={mode === 'edit'}
+							editMode={mode === 'edit'}
+						/>
+						<DescriptionSection
+							bind:tags={tags}
+							bind:documentLocation={documentLocation}
+							bind:archiveBox={archiveBox}
+							bind:archiveFolder={archiveFolder}
+							hideTitle
+							editMode={mode === 'edit'}
 						/>
-						<DescriptionSection bind:tags={tags} hideTitle />
 					</ScopeCard>
 				{:else}
 					<!-- N=0 (disabled placeholder) or N=1 (active): title + shared form -->
 					<div class="rounded-sm border border-line bg-surface p-6 shadow-sm">
-						<label class="block">
+						{#if mode === 'edit' && activeFile}
-							<span class="mb-1 block text-xs font-bold tracking-widest text-ink-3 uppercase">
+							<div data-testid="readonly-title">
-								{m.form_label_title()} <span class="text-danger">*</span>
+								<span class="mb-1 block text-xs font-bold tracking-widest text-ink-3 uppercase">
-							</span>
+									{m.form_label_title()}
-							{#if activeFile}
+								</span>
-								<input
+								<p class="font-serif text-base text-ink">{activeFile.title}</p>
-									type="text"
+							</div>
-									value={activeFile.title}
+						{:else}
-									oninput={(e) =>
+							<label class="block">
-										setTitle(activeId!, (e.currentTarget as HTMLInputElement).value)}
+								<span class="mb-1 block text-xs font-bold tracking-widest text-ink-3 uppercase">
-									class="block w-full rounded border border-line p-2 text-sm shadow-sm focus:outline-none focus-visible:ring-2 focus-visible:ring-focus-ring"
+									{m.form_label_title()} <span class="text-danger">*</span>
-								/>
+								</span>
-							{:else}
+								{#if activeFile}
-								<input
+									<input
-									type="text"
+										type="text"
-									disabled
+										value={activeFile.title}
-									placeholder="—"
+										oninput={(e) =>
-									class="block w-full rounded border border-line p-2 text-sm text-ink-3 shadow-sm"
+											setTitle(activeId!, (e.currentTarget as HTMLInputElement).value)}
-								/>
+										class="block w-full rounded border border-line p-2 text-sm shadow-sm focus:outline-none focus-visible:ring-2 focus-visible:ring-focus-ring"
-							{/if}
+									/>
-						</label>
+								{:else}
+									<input
+										type="text"
+										disabled
+										placeholder="—"
+										class="block w-full rounded border border-line p-2 text-sm text-ink-3 shadow-sm"
+									/>
+								{/if}
+							</label>
+						{/if}
 					</div>
 
 					<WhoWhenSection
@@ -302,8 +462,39 @@ async function save() {
 						bind:selectedReceivers={selectedReceivers}
 						bind:dateIso={dateIso}
 						initialSenderName={initialSenderName}
+						hideDate={mode === 'edit'}
+						editMode={mode === 'edit'}
 					/>
-					<DescriptionSection bind:tags={tags} hideTitle />
+					<DescriptionSection
+						bind:tags={tags}
+						bind:documentLocation={documentLocation}
+						bind:archiveBox={archiveBox}
+						bind:archiveFolder={archiveFolder}
+						hideTitle
+						editMode={mode === 'edit'}
+					/>
+				{/if}
+
+				{#if partialSaved}
+					<div
+						role="alert"
+						data-testid="bulk-edit-partial-failure"
+						class="rounded-sm border border-red-300 bg-red-50 px-4 py-3 text-sm text-red-700"
+					>
+						<p class="font-medium">
+							{m.bulk_edit_save_partial({
+								done: partialSaved.done,
+								total: partialSaved.total
+							})}
+						</p>
+						<button
+							type="button"
+							onclick={retrySave}
+							class="mt-2 inline-flex items-center bg-primary px-4 py-2 text-xs font-bold tracking-widest text-primary-fg uppercase transition-colors hover:bg-primary/90"
+						>
+							{m.bulk_edit_retry()}
+						</button>
+					</div>
 				{/if}
 			</div>
 

frontend/src/lib/components/document/BulkDocumentEditLayout.svelte.spec.ts

@@ -312,3 +312,190 @@ describe('BulkDocumentEditLayout', () => {
 		);
 	});
 });
+
+// ─── mode="edit" ─────────────────────────────────────────────────────────────
+
+describe('BulkDocumentEditLayout — mode="edit"', () => {
+	const editEntry = (i: number) => ({
+		documentId: `doc-${i}`,
+		title: `Brief ${i}`,
+		pdfUrl: `/api/documents/doc-${i}/file`
+	});
+
+	it('does not render the BulkDropZone in edit mode', async () => {
+		const { container } = render(BulkDocumentEditLayout, {
+			mode: 'edit',
+			initialEditEntries: [editEntry(1)]
+		});
+		expect(container.querySelector('[data-testid="bulk-drop-zone"]')).toBeNull();
+	});
+
+	it('renders the onboarding callout with role=note in edit mode', async () => {
+		render(BulkDocumentEditLayout, {
+			mode: 'edit',
+			initialEditEntries: [editEntry(1)]
+		});
+		const callout = page.getByTestId('bulk-edit-callout');
+		await expect.element(callout).toBeInTheDocument();
+		await expect.element(callout).toHaveAttribute('role', 'note');
+	});
+
+	it('renders read-only title display (no input) in edit mode', async () => {
+		const { container } = render(BulkDocumentEditLayout, {
+			mode: 'edit',
+			initialEditEntries: [editEntry(1)]
+		});
+		expect(container.querySelector('[data-testid="readonly-title"]')).not.toBeNull();
+		// Per-file ScopeCard absent at N=1 — title rendered in the single card
+		const titleInput = container.querySelector('input[type="text"][value="Brief 1"]');
+		expect(titleInput).toBeNull();
+	});
+
+	it('hides the date field via WhoWhenSection hideDate prop', async () => {
+		const { container } = render(BulkDocumentEditLayout, {
+			mode: 'edit',
+			initialEditEntries: [editEntry(1)]
+		});
+		expect(container.querySelector('[data-testid="who-when-date"]')).toBeNull();
+	});
+
+	it('shows additive badge next to tags label', async () => {
+		const { container } = render(BulkDocumentEditLayout, {
+			mode: 'edit',
+			initialEditEntries: [editEntry(1)]
+		});
+		expect(container.querySelector('[data-testid="field-label-badge-additive"]')).not.toBeNull();
+	});
+
+	it('shows replace badges next to sender and archive fields', async () => {
+		const { container } = render(BulkDocumentEditLayout, {
+			mode: 'edit',
+			initialEditEntries: [editEntry(1)]
+		});
+		const replaceBadges = container.querySelectorAll('[data-testid="field-label-badge-replace"]');
+		// sender + documentLocation + archiveBox + archiveFolder = 4
+		expect(replaceBadges.length).toBeGreaterThanOrEqual(4);
+	});
+
+	it('shows the archiveBox and archiveFolder bulk-only inputs', async () => {
+		const { container } = render(BulkDocumentEditLayout, {
+			mode: 'edit',
+			initialEditEntries: [editEntry(1)]
+		});
+		expect(container.querySelector('[data-testid="description-archive-box"]')).not.toBeNull();
+		expect(container.querySelector('[data-testid="description-archive-folder"]')).not.toBeNull();
+	});
+
+	it('save calls PATCH /api/documents/bulk in edit mode', async () => {
+		const mockFetch = vi.fn().mockResolvedValue({
+			ok: true,
+			json: async () => ({ updated: 2, errors: [] })
+		});
+		vi.stubGlobal('fetch', mockFetch);
+
+		const { container } = render(BulkDocumentEditLayout, {
+			mode: 'edit',
+			initialEditEntries: [editEntry(1), editEntry(2)]
+		});
+
+		const saveBtn = container.querySelector(
+			'button[data-testid="bulk-save-btn"]'
+		) as HTMLButtonElement;
+		expect(saveBtn).not.toBeNull();
+		saveBtn.click();
+
+		await vi.waitFor(() => expect(mockFetch).toHaveBeenCalledTimes(1), { timeout: 3000 });
+		const [url, init] = mockFetch.mock.calls[0];
+		expect(url).toBe('/api/documents/bulk');
+		expect(init.method).toBe('PATCH');
+		const body = JSON.parse(init.body);
+		expect(body.documentIds).toEqual(['doc-1', 'doc-2']);
+	});
+
+	it('chunks IDs into 500-sized PATCH requests', async () => {
+		const mockFetch = vi.fn().mockResolvedValue({
+			ok: true,
+			json: async () => ({ updated: 500, errors: [] })
+		});
+		vi.stubGlobal('fetch', mockFetch);
+
+		const entries = Array.from({ length: 1100 }, (_, i) => editEntry(i));
+		const { container } = render(BulkDocumentEditLayout, {
+			mode: 'edit',
+			initialEditEntries: entries
+		});
+
+		const saveBtn = container.querySelector(
+			'button[data-testid="bulk-save-btn"]'
+		) as HTMLButtonElement;
+		saveBtn.click();
+
+		await vi.waitFor(() => expect(mockFetch).toHaveBeenCalledTimes(3), { timeout: 5000 });
+		expect(JSON.parse(mockFetch.mock.calls[0][1].body).documentIds.length).toBe(500);
+		expect(JSON.parse(mockFetch.mock.calls[1][1].body).documentIds.length).toBe(500);
+		expect(JSON.parse(mockFetch.mock.calls[2][1].body).documentIds.length).toBe(100);
+	});
+
+	it('stops on chunk failure and shows the partial-failure alert with retry', async () => {
+		const mockFetch = vi
+			.fn()
+			.mockResolvedValueOnce({ ok: true, json: async () => ({ updated: 500, errors: [] }) })
+			.mockResolvedValueOnce({ ok: false, json: async () => ({ code: 'INTERNAL_ERROR' }) });
+		vi.stubGlobal('fetch', mockFetch);
+
+		const entries = Array.from({ length: 1100 }, (_, i) => editEntry(i));
+		const { container } = render(BulkDocumentEditLayout, {
+			mode: 'edit',
+			initialEditEntries: entries
+		});
+
+		const saveBtn = container.querySelector(
+			'button[data-testid="bulk-save-btn"]'
+		) as HTMLButtonElement;
+		saveBtn.click();
+
+		await vi.waitFor(
+			() => {
+				const alert = container.querySelector('[data-testid="bulk-edit-partial-failure"]');
+				expect(alert).not.toBeNull();
+			},
+			{ timeout: 5000 }
+		);
+		// Should have called twice — chunks 0 and 1 — but not the third.
+		expect(mockFetch).toHaveBeenCalledTimes(2);
+		expect(vi.mocked(goto)).not.toHaveBeenCalled();
+	});
+
+	it('marks per-document error chips when service returns errors[]', async () => {
+		vi.stubGlobal(
+			'fetch',
+			vi.fn().mockResolvedValue({
+				ok: true,
+				json: async () => ({
+					updated: 1,
+					errors: [{ id: 'doc-2', message: 'Sender not found' }]
+				})
+			})
+		);
+
+		const { container } = render(BulkDocumentEditLayout, {
+			mode: 'edit',
+			initialEditEntries: [editEntry(1), editEntry(2)]
+		});
+
+		const saveBtn = container.querySelector(
+			'button[data-testid="bulk-save-btn"]'
+		) as HTMLButtonElement;
+		saveBtn.click();
+
+		await vi.waitFor(
+			() => {
+				const errorChip = container.querySelector(
+					'[data-testid="file-switcher-strip"] [data-chip-id="doc-2"][data-status="error"]'
+				);
+				expect(errorChip).not.toBeNull();
+			},
+			{ timeout: 3000 }
+		);
+	});
+});

frontend/src/lib/components/document/DescriptionSection.svelte

@@ -1,31 +1,45 @@
 <script lang="ts">
 import { untrack } from 'svelte';
 import TagInput, { type Tag } from '$lib/components/TagInput.svelte';
+import FieldLabelBadge from './FieldLabelBadge.svelte';
 import { m } from '$lib/paraglide/messages.js';
 
 let {
 	tags = $bindable<Tag[]>([]),
 	currentTitle = $bindable(''),
+	documentLocation = $bindable(''),
+	archiveBox = $bindable(''),
+	archiveFolder = $bindable(''),
 	initialTitle = '',
 	initialDocumentLocation = '',
 	initialSummary = '',
 	titleRequired = false,
 	suggestedTitle = '',
-	hideTitle = false
+	hideTitle = false,
+	editMode = false
 }: {
 	tags?: Tag[];
 	currentTitle?: string;
+	documentLocation?: string;
+	archiveBox?: string;
+	archiveFolder?: string;
 	initialTitle?: string;
 	initialDocumentLocation?: string;
 	initialSummary?: string;
 	titleRequired?: boolean;
 	suggestedTitle?: string;
 	hideTitle?: boolean;
+	editMode?: boolean;
 } = $props();
 
 let titleDirty = $state(false);
 currentTitle = untrack(() => initialTitle);
 const titleValue = $derived(titleDirty ? currentTitle : suggestedTitle || currentTitle);
+
+// Initialize controlled location field once from the legacy initial-* props so
+// callers that haven't switched to the bindable form keep their existing
+// pre-fill behaviour.
+documentLocation = untrack(() => documentLocation || initialDocumentLocation);
 </script>
 
 <div class="rounded-sm border border-line bg-surface p-6 shadow-sm">
@@ -67,40 +81,78 @@ const titleValue = $derived(titleDirty ? currentTitle : suggestedTitle || curren
 
 		<!-- Schlagworte (optional) -->
 		<div>
-			<p class="mb-1 block text-sm font-medium text-ink-2">{m.form_label_tags()}</p>
+			<p class="mb-1 block text-sm font-medium text-ink-2">
+				{m.form_label_tags()}
+				{#if editMode}<FieldLabelBadge variant="additive" />{/if}
+			</p>
 			<TagInput bind:tags={tags} />
 			<input type="hidden" name="tags" value={tags.map((t) => t.name).join(',')} />
 		</div>
 
-		<!-- Inhalt (optional) -->
+		{#if !editMode}
-		<div>
+			<!-- Inhalt (optional) — not bulk-editable. -->
-			<label for="summary" class="mb-1 block text-sm font-medium text-ink-2"
+			<div>
-				>{m.form_label_content()}</label
+				<label for="summary" class="mb-1 block text-sm font-medium text-ink-2"
-			>
+					>{m.form_label_content()}</label
-			<textarea
+				>
-				id="summary"
+				<textarea
-				name="summary"
+					id="summary"
-				rows="5"
+					name="summary"
-				placeholder={m.form_placeholder_content()}
+					rows="5"
-				class="block w-full rounded border border-line p-2 font-serif text-sm shadow-sm focus:outline-none focus-visible:ring-2 focus-visible:ring-focus-ring"
+					placeholder={m.form_placeholder_content()}
-				>{initialSummary}</textarea
+					class="block w-full rounded border border-line p-2 font-serif text-sm shadow-sm focus:outline-none focus-visible:ring-2 focus-visible:ring-focus-ring"
-			>
+					>{initialSummary}</textarea
-		</div>
+				>
+			</div>
+		{/if}
 
 		<!-- Aufbewahrungsort (optional) -->
-		<div>
+		<div data-testid="description-document-location">
 			<label for="documentLocation" class="mb-1 block text-sm font-medium text-ink-2"
-				>{m.form_label_archive_location()}</label
+				>{m.form_label_archive_location()}
-			>
+				{#if editMode}<FieldLabelBadge variant="replace" />{/if}
+			</label>
 			<input
 				id="documentLocation"
 				type="text"
 				name="documentLocation"
-				value={initialDocumentLocation}
+				bind:value={documentLocation}
 				placeholder={m.form_placeholder_archive_location()}
 				class="block w-full rounded border border-line p-2 text-sm shadow-sm focus:outline-none focus-visible:ring-2 focus-visible:ring-focus-ring"
 			/>
 			<p class="mt-1 text-xs text-ink-3">{m.form_helper_archive_location()}</p>
 		</div>
+
+		{#if editMode}
+			<!-- Karton (only in editMode — bulk-editable replace) -->
+			<div data-testid="description-archive-box">
+				<label for="archiveBox" class="mb-1 block text-sm font-medium text-ink-2"
+					>Karton
+					<FieldLabelBadge variant="replace" />
+				</label>
+				<input
+					id="archiveBox"
+					type="text"
+					name="archiveBox"
+					bind:value={archiveBox}
+					class="block w-full rounded border border-line p-2 text-sm shadow-sm focus:outline-none focus-visible:ring-2 focus-visible:ring-focus-ring"
+				/>
+			</div>
+
+			<!-- Mappe (only in editMode — bulk-editable replace) -->
+			<div data-testid="description-archive-folder">
+				<label for="archiveFolder" class="mb-1 block text-sm font-medium text-ink-2"
+					>Mappe
+					<FieldLabelBadge variant="replace" />
+				</label>
+				<input
+					id="archiveFolder"
+					type="text"
+					name="archiveFolder"
+					bind:value={archiveFolder}
+					class="block w-full rounded border border-line p-2 text-sm shadow-sm focus:outline-none focus-visible:ring-2 focus-visible:ring-focus-ring"
+				/>
+			</div>
+		{/if}
 	</div>
 </div>

frontend/src/lib/components/document/FieldLabelBadge.svelte

@@ -0,0 +1,16 @@
+<script lang="ts">
+import { m } from '$lib/paraglide/messages.js';
+
+let { variant }: { variant: 'additive' | 'replace' } = $props();
+
+const text = $derived(
+	variant === 'additive' ? m.bulk_edit_badge_additive() : m.bulk_edit_badge_replace()
+);
+</script>
+
+<span
+	data-testid="field-label-badge-{variant}"
+	class="ml-2 inline-flex items-center rounded-sm bg-muted px-1.5 py-0.5 text-[10px] font-medium tracking-wide text-gray-600"
+>
+	{text}
+</span>

frontend/src/lib/components/document/FieldLabelBadge.svelte.spec.ts

@@ -0,0 +1,30 @@
+import { afterEach, describe, expect, it } from 'vitest';
+import { cleanup, render } from 'vitest-browser-svelte';
+import { page } from 'vitest/browser';
+import FieldLabelBadge from './FieldLabelBadge.svelte';
+
+afterEach(() => cleanup());
+
+describe('FieldLabelBadge', () => {
+	it('renders the additive variant text', async () => {
+		render(FieldLabelBadge, { variant: 'additive' });
+		await expect.element(page.getByTestId('field-label-badge-additive')).toBeInTheDocument();
+		await expect
+			.element(page.getByTestId('field-label-badge-additive'))
+			.toHaveTextContent('+ wird hinzugefügt');
+	});
+
+	it('renders the replace variant text', async () => {
+		render(FieldLabelBadge, { variant: 'replace' });
+		await expect
+			.element(page.getByTestId('field-label-badge-replace'))
+			.toHaveTextContent('wird ersetzt');
+	});
+
+	it('uses text-gray-600 for WCAG-AA contrast on muted backgrounds', async () => {
+		render(FieldLabelBadge, { variant: 'replace' });
+		await expect
+			.element(page.getByTestId('field-label-badge-replace'))
+			.toHaveClass(/text-gray-600/);
+	});
+});

frontend/src/lib/components/document/FileSwitcherStrip.svelte

@@ -4,7 +4,11 @@ import { m } from '$lib/paraglide/messages.js';
 
 export interface FileEntry {
 	id: string;
-	file: File;
+	/** Present in upload mode only. Edit mode entries reference an existing
+	 *  document by `documentId` and have no local file blob. */
+	file?: File;
+	/** Present in edit mode only — the server-side document UUID being edited. */
+	documentId?: string;
 	title: string;
 	status: 'idle' | 'error';
 	previewUrl: string;

frontend/src/lib/components/document/WhoWhenSection.svelte

@@ -2,6 +2,7 @@
 import { untrack } from 'svelte';
 import PersonTypeahead from '$lib/components/PersonTypeahead.svelte';
 import PersonMultiSelect from '$lib/components/PersonMultiSelect.svelte';
+import FieldLabelBadge from './FieldLabelBadge.svelte';
 import { isoToGerman, handleGermanDateInput } from '$lib/utils/date';
 import { m } from '$lib/paraglide/messages.js';
 import type { components } from '$lib/generated/api';
@@ -16,7 +17,9 @@ let {
 	initialLocation = '',
 	initialSenderName = '',
 	suggestedDateIso = '',
-	suggestedSenderName = ''
+	suggestedSenderName = '',
+	hideDate = false,
+	editMode = false
 }: {
 	senderId?: string;
 	selectedReceivers?: Person[];
@@ -26,6 +29,8 @@ let {
 	initialSenderName?: string;
 	suggestedDateIso?: string;
 	suggestedSenderName?: string;
+	hideDate?: boolean;
+	editMode?: boolean;
 } = $props();
 
 let dateDisplay = $state(untrack(() => isoToGerman(initialDateIso)));
@@ -56,60 +61,72 @@ $effect(() => {
 	</h2>
 
 	<div class="grid grid-cols-1 gap-5 md:grid-cols-2">
-		<!-- Datum (required — row 1, col 1) -->
+		{#if !hideDate}
-		<div>
+			<!-- Datum (required — row 1, col 1) -->
-			<label for="documentDate" class="mb-1 block text-sm font-medium text-ink-2"
+			<div data-testid="who-when-date">
-				>{m.form_label_date()}*</label
+				<label for="documentDate" class="mb-1 block text-sm font-medium text-ink-2"
-			>
+					>{m.form_label_date()}*</label
-			<input
+				>
-				id="documentDate"
+				<input
-				type="text"
+					id="documentDate"
-				inputmode="numeric"
+					type="text"
-				value={dateDisplay}
+					inputmode="numeric"
-				oninput={handleDateInput}
+					value={dateDisplay}
-				placeholder={m.form_placeholder_date()}
+					oninput={handleDateInput}
-				maxlength="10"
+					placeholder={m.form_placeholder_date()}
-				class="block w-full rounded border border-line px-2 py-3 text-sm shadow-sm
+					maxlength="10"
-                       {dateInvalid ? 'border-red-400 focus:outline-none focus-visible:ring-2 focus-visible:ring-red-500' : 'focus:outline-none focus-visible:ring-2 focus-visible:ring-focus-ring'}"
+					class="block w-full rounded border border-line px-2 py-3 text-sm shadow-sm
-				aria-describedby={dateInvalid ? 'date-error' : undefined}
+                       {dateInvalid
-			/>
+						? 'border-red-400 focus:outline-none focus-visible:ring-2 focus-visible:ring-red-500'
-			<input type="hidden" name="documentDate" value={dateIso} />
+						: 'focus:outline-none focus-visible:ring-2 focus-visible:ring-focus-ring'}"
-			{#if dateInvalid}
+					aria-describedby={dateInvalid ? 'date-error' : undefined}
-				<p id="date-error" class="mt-1 text-xs text-red-600">{m.form_date_error()}</p>
+				/>
-			{/if}
+				<input type="hidden" name="documentDate" value={dateIso} />
-		</div>
+				{#if dateInvalid}
+					<p id="date-error" class="mt-1 text-xs text-red-600">{m.form_date_error()}</p>
+				{/if}
+			</div>
+		{/if}
 
-		<!-- Absender (required — row 1, col 2) -->
+		<!-- Absender (required in upload mode — row 1, col 2) -->
 		<div>
 			<PersonTypeahead
 				name="senderId"
 				label={m.form_label_sender()}
-				required={true}
+				required={!editMode}
 				bind:value={senderId}
 				initialName={initialSenderName}
 				suggestedName={suggestedSenderName}
+				badge={editMode ? 'replace' : undefined}
 			/>
 		</div>
 
 		<!-- Empfänger (optional — row 2, col 1) -->
 		<div>
-			<p class="mb-1 block text-sm font-medium text-ink-2">{m.form_label_receivers()}</p>
+			<p class="mb-1 block text-sm font-medium text-ink-2">
+				{m.form_label_receivers()}
+				{#if editMode}<FieldLabelBadge variant="additive" />{/if}
+			</p>
 			<PersonMultiSelect bind:selectedPersons={selectedReceivers} />
 		</div>
 
-		<!-- Ort (optional — row 2, col 2) -->
+		{#if !editMode}
-		<div>
+			<!-- Ort (optional — row 2, col 2). Hidden in editMode: meta_location is
-			<label for="location" class="mb-1 block text-sm font-medium text-ink-2"
+				 NOT bulk-editable per the issue spec; the three editable location
-				>{m.form_label_location()}</label
+				 fields live in DescriptionSection. -->
-			>
+			<div>
-			<input
+				<label for="location" class="mb-1 block text-sm font-medium text-ink-2"
-				id="location"
+					>{m.form_label_location()}</label
-				type="text"
+				>
-				name="location"
+				<input
-				value={initialLocation}
+					id="location"
-				placeholder={m.form_placeholder_location()}
+					type="text"
-				class="block w-full rounded border border-line px-2 py-3 text-sm shadow-sm focus:outline-none focus-visible:ring-2 focus-visible:ring-focus-ring"
+					name="location"
-			/>
+					value={initialLocation}
-		</div>
+					placeholder={m.form_placeholder_location()}
+					class="block w-full rounded border border-line px-2 py-3 text-sm shadow-sm focus:outline-none focus-visible:ring-2 focus-visible:ring-focus-ring"
+				/>
+			</div>
+		{/if}
 	</div>
 </div>