refactor(frontend): replace all as-unknown-as error casts with extractErrorCode

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

.gitea/workflows/nightly.yml

@@ -79,7 +79,6 @@ jobs:
           IMPORT_HOST_DIR=/srv/familienarchiv-staging/import
           POSTGRES_USER=archiv
           SENTRY_DSN=${{ secrets.SENTRY_DSN }}
-          VITE_SENTRY_DSN=${{ secrets.VITE_SENTRY_DSN }}
           EOF
 
       - name: Verify backend /import:ro mount is wired

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

@@ -25,14 +25,11 @@ import java.util.UUID;
 @NamedEntityGraph(name = "Document.full", attributeNodes = {
         @NamedAttributeNode("sender"),
         @NamedAttributeNode("receivers"),
-        @NamedAttributeNode("tags"),
-        @NamedAttributeNode("trainingLabels")
+        @NamedAttributeNode("tags")
 })
 @NamedEntityGraph(name = "Document.list", attributeNodes = {
         @NamedAttributeNode("sender"),
-        @NamedAttributeNode("receivers"),
-        @NamedAttributeNode("tags"),
-        @NamedAttributeNode("trainingLabels")
+        @NamedAttributeNode("tags")
 })
 @Entity
 @Table(name = "documents")

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

@@ -43,7 +43,7 @@ public class TranscriptionBlockController {
 
     @PostMapping
     @ResponseStatus(HttpStatus.CREATED)
-    @RequirePermission({Permission.ANNOTATE_ALL, Permission.WRITE_ALL})
+    @RequirePermission(Permission.WRITE_ALL)
     public TranscriptionBlock createBlock(
             @PathVariable UUID documentId,
             @Valid @RequestBody CreateTranscriptionBlockDTO dto,
@@ -53,7 +53,7 @@ public class TranscriptionBlockController {
     }
 
     @PutMapping("/{blockId}")
-    @RequirePermission({Permission.ANNOTATE_ALL, Permission.WRITE_ALL})
+    @RequirePermission(Permission.WRITE_ALL)
     public TranscriptionBlock updateBlock(
             @PathVariable UUID documentId,
             @PathVariable UUID blockId,
@@ -65,7 +65,7 @@ public class TranscriptionBlockController {
 
     @DeleteMapping("/{blockId}")
     @ResponseStatus(HttpStatus.NO_CONTENT)
-    @RequirePermission({Permission.ANNOTATE_ALL, Permission.WRITE_ALL})
+    @RequirePermission(Permission.WRITE_ALL)
     public void deleteBlock(
             @PathVariable UUID documentId,
             @PathVariable UUID blockId) {
@@ -73,7 +73,7 @@ public class TranscriptionBlockController {
     }
 
     @PutMapping("/reorder")
-    @RequirePermission({Permission.ANNOTATE_ALL, Permission.WRITE_ALL})
+    @RequirePermission(Permission.WRITE_ALL)
     public List<TranscriptionBlock> reorderBlocks(
             @PathVariable UUID documentId,
             @RequestBody ReorderTranscriptionBlocksDTO dto) {
@@ -82,7 +82,7 @@ public class TranscriptionBlockController {
     }
 
     @PutMapping("/{blockId}/review")
-    @RequirePermission({Permission.ANNOTATE_ALL, Permission.WRITE_ALL})
+    @RequirePermission(Permission.WRITE_ALL)
     public TranscriptionBlock reviewBlock(
             @PathVariable UUID documentId,
             @PathVariable UUID blockId,
@@ -92,7 +92,7 @@ public class TranscriptionBlockController {
     }
 
     @PutMapping("/review-all")
-    @RequirePermission({Permission.ANNOTATE_ALL, Permission.WRITE_ALL})
+    @RequirePermission(Permission.WRITE_ALL)
     public List<TranscriptionBlock> markAllBlocksReviewed(
             @PathVariable UUID documentId,
             Authentication authentication) {

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

@@ -56,17 +56,9 @@ public class MassImportService {
 
     public enum State { IDLE, RUNNING, DONE, FAILED }
 
-    public enum SkipReason {
-        INVALID_FILENAME_PATH_TRAVERSAL,
-        INVALID_PDF_SIGNATURE,
-        FILE_READ_ERROR,
-        ALREADY_EXISTS,
-        S3_UPLOAD_FAILED
-    }
-
     public record SkippedFile(
             @Schema(requiredMode = Schema.RequiredMode.REQUIRED) String filename,
-            @Schema(requiredMode = Schema.RequiredMode.REQUIRED) SkipReason reason
+            @Schema(requiredMode = Schema.RequiredMode.REQUIRED) String reason
     ) {}
 
     public record ImportStatus(
@@ -299,11 +291,6 @@ public class MassImportService {
             if (index.isBlank()) continue;
 
             String filename = index.contains(".") ? index : index + ".pdf";
-            if (!isValidImportFilename(filename)) {
-                log.warn("Skipping import row {}: filename rejected — {}", i, filename);
-                skippedFiles.add(new SkippedFile(filename, SkipReason.INVALID_FILENAME_PATH_TRAVERSAL));
-                continue;
-            }
             Optional<File> fileOnDisk = findFileRecursive(filename);
             if (fileOnDisk.isEmpty()) {
                 log.warn("Datei nicht gefunden, importiere nur Metadaten: {}", filename);
@@ -313,17 +300,17 @@ public class MassImportService {
                 try {
                     if (!isPdfMagicBytes(fileOnDisk.get())) {
                         log.warn("Überspringe {}: Datei beginnt nicht mit %PDF-Signatur", filename);
-                        skippedFiles.add(new SkippedFile(filename, SkipReason.INVALID_PDF_SIGNATURE));
+                        skippedFiles.add(new SkippedFile(filename, "INVALID_PDF_SIGNATURE"));
                         continue;
                     }
                 } catch (IOException e) {
                     log.error("Fehler beim Prüfen der Magic-Bytes für {}", filename, e);
-                    skippedFiles.add(new SkippedFile(filename, SkipReason.FILE_READ_ERROR));
+                    skippedFiles.add(new SkippedFile(filename, "FILE_READ_ERROR"));
                     continue;
                 }
             }
 
-            Optional<SkipReason> skipReason = importSingleDocument(cells, fileOnDisk, filename, index);
+            Optional<String> skipReason = importSingleDocument(cells, fileOnDisk, filename, index);
             if (skipReason.isPresent()) {
                 skippedFiles.add(new SkippedFile(filename, skipReason.get()));
             } else {
@@ -333,23 +320,6 @@ public class MassImportService {
         return new ProcessResult(processed, skippedFiles);
     }
 
-    private boolean isValidImportFilename(String filename) {
-        if (filename == null || filename.isBlank()) return false;
-        if (filename.contains("/")) return false;
-        if (filename.contains("\\")) return false;
-        if (filename.contains("∕")) return false;  // U+2215 DIVISION SLASH
-        if (filename.contains("／")) return false;  // U+FF0F FULLWIDTH SOLIDUS
-        if (filename.contains("⧵")) return false;  // U+29F5 REVERSE SOLIDUS OPERATOR
-        if (filename.contains("..")) return false;
-        if (filename.equals(".")) return false;
-        if (filename.contains("\0")) return false;
-        // Paths.get() is safe here on Linux for all inputs that passed the checks above;
-        // it may throw InvalidPathException for OS-specific illegal chars on Windows,
-        // but those are not reachable in production.
-        if (Paths.get(filename).isAbsolute()) return false;
-        return true;
-    }
-
     // package-private: Mockito spy in tests can override to inject IOException
     InputStream openFileStream(File file) throws IOException {
         return new FileInputStream(file);
@@ -372,11 +342,11 @@ public class MassImportService {
      * @return empty Optional on success; an Optional containing the skip reason on failure/skip.
      */
     @Transactional
-    protected Optional<SkipReason> importSingleDocument(List<String> cells, Optional<File> file, String originalFilename, String index) {
+    protected Optional<String> importSingleDocument(List<String> cells, Optional<File> file, String originalFilename, String index) {
         Optional<Document> existing = documentService.findByOriginalFilename(originalFilename);
         if (existing.isPresent() && existing.get().getStatus() != DocumentStatus.PLACEHOLDER) {
             log.info("Dokument {} existiert bereits, überspringe.", originalFilename);
-            return Optional.of(SkipReason.ALREADY_EXISTS);
+            return Optional.of("ALREADY_EXISTS");
         }
 
         String archiveBox    = getCell(cells, colBox);
@@ -412,7 +382,7 @@ public class MassImportService {
                 status = DocumentStatus.UPLOADED;
             } catch (Exception e) {
                 log.error("S3 Upload Fehler für {}", file.get().getName(), e);
-                return Optional.of(SkipReason.S3_UPLOAD_FAILED);
+                return Optional.of("S3_UPLOAD_FAILED");
             }
         }
 
@@ -490,18 +460,11 @@ public class MassImportService {
     }
 
     private Optional<File> findFileRecursive(String filename) {
-        File baseDir = new File(importDir);
-        try (Stream<Path> walk = Files.walk(baseDir.toPath())) {
-            Optional<Path> match = walk.filter(p -> !Files.isDirectory(p))
+        try (Stream<Path> walk = Files.walk(Paths.get(importDir))) {
+            return walk.filter(p -> !Files.isDirectory(p))
                     .filter(p -> p.getFileName().toString().equals(filename))
+                    .map(Path::toFile)
                     .findFirst();
-            if (match.isEmpty()) return Optional.empty();
-            File candidate = match.get().toFile();
-            String baseDirCanonical = baseDir.getCanonicalPath();
-            if (!candidate.getCanonicalPath().startsWith(baseDirCanonical + File.separator)) {
-                throw DomainException.internal(ErrorCode.INTERNAL_ERROR, "Path escape detected: " + candidate);
-            }
-            return Optional.of(candidate);
         } catch (IOException e) {
             return Optional.empty();
         }

backend/src/test/java/org/raddatz/familienarchiv/importing/MassImportServiceTest.java

@@ -154,10 +154,10 @@ class MassImportServiceTest {
                 .build();
         when(documentService.findByOriginalFilename("doc001.pdf")).thenReturn(Optional.of(existing));
 
-        Optional<MassImportService.SkipReason> result = service.importSingleDocument(minimalCells("doc001.pdf"), Optional.empty(), "doc001.pdf", "doc001");
+        Optional<String> result = service.importSingleDocument(minimalCells("doc001.pdf"), Optional.empty(), "doc001.pdf", "doc001");
 
         verify(documentService, never()).save(any());
-        assertThat(result).isPresent().contains(MassImportService.SkipReason.ALREADY_EXISTS);
+        assertThat(result).isPresent().contains("ALREADY_EXISTS");
     }
 
     // ─── importSingleDocument — already-exists guard fires before file I/O ─────
@@ -179,10 +179,10 @@ class MassImportServiceTest {
         byte[] pdfHeader = {0x25, 0x50, 0x44, 0x46, 0x2D}; // %PDF-
         Files.write(physicalFile, pdfHeader);
 
-        Optional<MassImportService.SkipReason> result = service.importSingleDocument(
+        Optional<String> result = service.importSingleDocument(
                 minimalCells("present.pdf"), Optional.of(physicalFile.toFile()), "present.pdf", "present");
 
-        assertThat(result).isPresent().contains(MassImportService.SkipReason.ALREADY_EXISTS);
+        assertThat(result).isPresent().contains("ALREADY_EXISTS");
         verify(s3Client, never()).putObject(any(PutObjectRequest.class), any(RequestBody.class));
         verify(documentService, never()).save(any());
     }
@@ -204,7 +204,7 @@ class MassImportServiceTest {
         assertThat(service.getStatus().skipped()).isEqualTo(1);
         assertThat(service.getStatus().skippedFiles())
                 .extracting(MassImportService.SkippedFile::filename, MassImportService.SkippedFile::reason)
-                .containsExactly(org.assertj.core.groups.Tuple.tuple("upload_fail.pdf", MassImportService.SkipReason.S3_UPLOAD_FAILED));
+                .containsExactly(org.assertj.core.groups.Tuple.tuple("upload_fail.pdf", "S3_UPLOAD_FAILED"));
     }
 
     @Test
@@ -223,7 +223,7 @@ class MassImportServiceTest {
         assertThat(service.getStatus().skipped()).isEqualTo(1);
         assertThat(service.getStatus().skippedFiles())
                 .extracting(MassImportService.SkippedFile::reason)
-                .containsExactly(MassImportService.SkipReason.ALREADY_EXISTS);
+                .containsExactly("ALREADY_EXISTS");
     }
 
     // ─── importSingleDocument — create new document (metadata only) ───────────
@@ -283,11 +283,11 @@ class MassImportServiceTest {
         doThrow(new RuntimeException("S3 error"))
                 .when(s3Client).putObject(any(PutObjectRequest.class), any(RequestBody.class));
 
-        Optional<MassImportService.SkipReason> result = service.importSingleDocument(
+        Optional<String> result = service.importSingleDocument(
                 minimalCells("fail.pdf"), Optional.of(tempFile.toFile()), "fail.pdf", "fail");
 
         verify(documentService, never()).save(any());
-        assertThat(result).isPresent().contains(MassImportService.SkipReason.S3_UPLOAD_FAILED);
+        assertThat(result).isPresent().contains("S3_UPLOAD_FAILED");
     }
 
     // ─── importSingleDocument — sender handling ───────────────────────────────
@@ -438,110 +438,6 @@ class MassImportServiceTest {
         verify(documentService).findByOriginalFilename("doc002.pdf");
     }
 
-    // ─── isValidImportFilename — security regression — do not remove ─────────
-
-    @Test
-    void isValidImportFilename_returnsFalse_whenFilenameIsNull() {
-        boolean result = ReflectionTestUtils.invokeMethod(service, "isValidImportFilename", (String) null);
-        assertThat(result).isFalse();
-    }
-
-    @Test
-    void isValidImportFilename_returnsFalse_whenFilenameIsBlank() {
-        boolean result = ReflectionTestUtils.invokeMethod(service, "isValidImportFilename", "   ");
-        assertThat(result).isFalse();
-    }
-
-    @Test
-    void isValidImportFilename_returnsFalse_whenFilenameContainsForwardSlash() {
-        boolean result = ReflectionTestUtils.invokeMethod(service, "isValidImportFilename", "etc/passwd");
-        assertThat(result).isFalse();
-    }
-
-    @Test
-    void isValidImportFilename_returnsFalse_whenFilenameContainsBackslash() {
-        boolean result = ReflectionTestUtils.invokeMethod(service, "isValidImportFilename", "..\\etc\\passwd");
-        assertThat(result).isFalse();
-    }
-
-    @Test
-    void isValidImportFilename_returnsFalse_whenFilenameContainsDotDot() {
-        boolean result = ReflectionTestUtils.invokeMethod(service, "isValidImportFilename", "doc..evil.pdf");
-        assertThat(result).isFalse();
-    }
-
-    @Test
-    void isValidImportFilename_returnsFalse_whenFilenameIsDotDot() {
-        boolean result = ReflectionTestUtils.invokeMethod(service, "isValidImportFilename", "..");
-        assertThat(result).isFalse();
-    }
-
-    @Test
-    void isValidImportFilename_returnsFalse_whenFilenameIsAbsolutePath() {
-        boolean result = ReflectionTestUtils.invokeMethod(service, "isValidImportFilename", "/etc/passwd");
-        assertThat(result).isFalse();
-    }
-
-    @Test
-    void isValidImportFilename_returnsFalse_whenFilenameContainsNullByte() {
-        boolean result = ReflectionTestUtils.invokeMethod(service, "isValidImportFilename", "file\0.pdf");
-        assertThat(result).isFalse();
-    }
-
-    @Test
-    void isValidImportFilename_returnsTrue_whenFilenameIsPlainBasename() {
-        boolean result = ReflectionTestUtils.invokeMethod(service, "isValidImportFilename", "document.pdf");
-        assertThat(result).isTrue();
-    }
-
-    @Test
-    void isValidImportFilename_returnsFalse_whenFilenameContainsUnicodeDivisionSlash() {
-        boolean result = ReflectionTestUtils.invokeMethod(service, "isValidImportFilename", "foo∕bar.pdf");
-        assertThat(result).isFalse();
-    }
-
-    @Test
-    void isValidImportFilename_returnsFalse_whenFilenameContainsFullwidthSlash() {
-        boolean result = ReflectionTestUtils.invokeMethod(service, "isValidImportFilename", "foo／bar.pdf");
-        assertThat(result).isFalse();
-    }
-
-    @Test
-    void isValidImportFilename_returnsFalse_whenFilenameContainsUnicodeReverseSolidus() {
-        boolean result = ReflectionTestUtils.invokeMethod(service, "isValidImportFilename", "foo⧵bar.pdf");
-        assertThat(result).isFalse();
-    }
-
-    @Test
-    void isValidImportFilename_returnsTrue_whenFilenameHasLeadingDot() {
-        boolean result = ReflectionTestUtils.invokeMethod(service, "isValidImportFilename", ".hidden.pdf");
-        assertThat(result).isTrue();
-    }
-
-    @Test
-    void isValidImportFilename_returnsTrue_whenFilenameHasSpaces() {
-        boolean result = ReflectionTestUtils.invokeMethod(service, "isValidImportFilename", "Brief an Oma.pdf");
-        assertThat(result).isTrue();
-    }
-
-    @Test
-    void processRows_skipsRowAndContinues_whenFilenameIsPathTraversal() {
-        when(documentService.findByOriginalFilename("legitimate.pdf")).thenReturn(Optional.empty());
-        when(documentService.save(any())).thenAnswer(inv -> inv.getArgument(0));
-
-        List<List<String>> rows = List.of(
-                List.of("header"),
-                minimalCells("../evil"),       // row 1: path traversal — should be skipped
-                minimalCells("legitimate.pdf") // row 2: valid — should be processed
-        );
-        MassImportService.ProcessResult result = ReflectionTestUtils.invokeMethod(service, "processRows", rows);
-
-        assertThat(result.processed()).isEqualTo(1);
-        assertThat(result.skippedFiles())
-                .extracting(MassImportService.SkippedFile::reason)
-                .containsExactly(MassImportService.SkipReason.INVALID_FILENAME_PATH_TRAVERSAL);
-    }
-
     // ─── importSingleDocument — non-blank optional fields ────────────────────
 
     @Test
@@ -755,22 +651,7 @@ class MassImportServiceTest {
         assertThat(spyService.getStatus().skipped()).isEqualTo(1);
         assertThat(spyService.getStatus().skippedFiles())
                 .extracting(MassImportService.SkippedFile::reason)
-                .containsExactly(MassImportService.SkipReason.FILE_READ_ERROR);
-    }
-
-    // ─── findFileRecursive — symlink escape security regression — do not remove ─
-
-    @Test
-    void findFileRecursive_throwsDomainException_whenSymlinkEscapesImportDir(
-            @TempDir Path importDirPath, @TempDir Path outsideDir) throws Exception {
-        Path outsideFile = outsideDir.resolve("secret.pdf");
-        Files.writeString(outsideFile, "sensitive content");
-        Files.createSymbolicLink(importDirPath.resolve("secret.pdf"), outsideFile);
-
-        ReflectionTestUtils.setField(service, "importDir", importDirPath.toString());
-
-        assertThatThrownBy(() -> ReflectionTestUtils.invokeMethod(service, "findFileRecursive", "secret.pdf"))
-                .isInstanceOf(DomainException.class);
+                .containsExactly("FILE_READ_ERROR");
     }
 
     // ─── readOds — XXE security regression ───────────────────────────────────

docker-compose.prod.yml

@@ -252,8 +252,6 @@ services:
       OTEL_METRICS_EXPORTER: none
       MANAGEMENT_METRICS_TAGS_APPLICATION: Familienarchiv
       MANAGEMENT_TRACING_SAMPLING_PROBABILITY: ${MANAGEMENT_TRACING_SAMPLING_PROBABILITY:-0.1}
-      SENTRY_DSN: ${SENTRY_DSN:-}
-      LOGGING_STRUCTURED_FORMAT_CONSOLE: ecs
     networks:
       - archiv-net
     healthcheck:
@@ -268,10 +266,6 @@ services:
     build:
       context: ./frontend
       target: production
-      args:
-        # Vite build-time variable — baked into the JS bundle at build time.
-        # Empty default so deploys succeed before the secret is configured.
-        VITE_SENTRY_DSN: ${VITE_SENTRY_DSN:-}
     restart: unless-stopped
     depends_on:
       backend:

frontend/Dockerfile

@@ -16,10 +16,6 @@ CMD ["npm", "run", "dev"]
 # Compiles the SvelteKit Node-adapter output to /app/build.
 FROM node:20.19.0-alpine3.21 AS build
 WORKDIR /app
-# VITE_SENTRY_DSN is a build-time variable — Vite bakes it into the bundle.
-# Passed via docker-compose build.args; empty string disables the SDK.
-ARG VITE_SENTRY_DSN
-ENV VITE_SENTRY_DSN=$VITE_SENTRY_DSN
 COPY package.json package-lock.json ./
 RUN npm ci
 COPY . .

frontend/eslint.config.js

@@ -106,31 +106,6 @@ export default defineConfig(
 			]
 		}
 	},
-	{
-		// Forbid test fixtures (*.test-fixture.svelte) from being imported by
-		// production code. Tree-shaking keeps them out of the production bundle
-		// today (no route reaches them), but a lint rule makes the boundary
-		// explicit so an accidental autocomplete import in a route or component
-		// fails fast. Test files (*.spec.ts / *.test.ts) and the fixtures
-		// themselves are exempt — see the next block. Nora #2 on PR #629
-		// round 3.
-		files: ['**/*.svelte', '**/*.svelte.ts', '**/*.svelte.js', '**/*.ts'],
-		ignores: ['**/*.spec.ts', '**/*.test.ts', '**/*.test-fixture.svelte'],
-		rules: {
-			'no-restricted-imports': [
-				'error',
-				{
-					patterns: [
-						{
-							group: ['**/*.test-fixture.svelte'],
-							message:
-								'Test fixtures (*.test-fixture.svelte) are test-only — do not import from production code. Tracked by #637.'
-						}
-					]
-				}
-			]
-		}
-	},
 	{
 		plugins: { boundaries },
 		settings: {

frontend/messages/de.json

@@ -445,12 +445,8 @@
 	"person_mention_load_error": "Person konnte nicht geladen werden.",
 	"person_mention_loading": "Lade Person…",
 	"person_mention_popup_empty": "Keine Personen gefunden",
-	"person_mention_search_label": "Person suchen",
-	"person_mention_search_prompt": "Namen eingeben…",
 	"person_mention_btn_label": "Person verlinken",
 	"person_mention_create_new": "Neue Person anlegen",
-	"person_mention_results_count_singular": "1 Person gefunden",
-	"person_mention_results_count_plural": "{count} Personen gefunden",
 	"transcription_editor_aria_label": "Transkriptionstext",
 	"person_born_name_prefix": "geb.",
 	"page_title_home": "Archiv",
@@ -526,7 +522,6 @@
 	"notification_filter_unread": "Ungelesen",
 	"notification_filter_mention": "Erwähnung",
 	"notification_filter_reply": "Antwort",
-	"notification_error_generic": "Aktion fehlgeschlagen. Bitte versuche es erneut.",
 	"notification_mark_all_read_aria": "Alle Benachrichtigungen als gelesen markieren",
 	"notification_load_more": "Ältere laden",
 	"notification_empty_history": "Keine Benachrichtigungen",
@@ -638,9 +633,6 @@
 	"transcription_block_review": "Als geprüft markieren",
 	"transcription_block_unreview": "Markierung aufheben",
 	"transcription_reviewed_count": "{reviewed} von {total} geprüft",
-	"transcription_mark_all_reviewed": "Alle als fertig markieren",
-	"transcription_mark_all_reviewed_disabled": "Alle Blöcke sind bereits als fertig markiert",
-	"transcription_mark_all_reviewed_error": "Markierung fehlgeschlagen. Bitte versuchen Sie es erneut.",
 	"training_ocr_heading": "Kurrent-Erkennung trainieren",
 	"training_ocr_description": "Starte ein neues Training mit den bisher geprüften OCR-Blöcken, um die Erkennungsgenauigkeit für Kurrentschrift zu verbessern.",
 	"training_ocr_blocks_ready": "{blocks} geprüfte Blöcke bereit / {docs} Dokumente",

frontend/messages/en.json

@@ -445,12 +445,8 @@
 	"person_mention_load_error": "Could not load person.",
 	"person_mention_loading": "Loading person…",
 	"person_mention_popup_empty": "No persons found",
-	"person_mention_search_label": "Search for a person",
-	"person_mention_search_prompt": "Enter a name…",
 	"person_mention_btn_label": "Link person",
 	"person_mention_create_new": "Create new person",
-	"person_mention_results_count_singular": "1 person found",
-	"person_mention_results_count_plural": "{count} persons found",
 	"transcription_editor_aria_label": "Transcription text",
 	"person_born_name_prefix": "née",
 	"page_title_home": "Archive",
@@ -526,7 +522,6 @@
 	"notification_filter_unread": "Unread",
 	"notification_filter_mention": "Mention",
 	"notification_filter_reply": "Reply",
-	"notification_error_generic": "Action failed. Please try again.",
 	"notification_mark_all_read_aria": "Mark all notifications as read",
 	"notification_load_more": "Load older",
 	"notification_empty_history": "No notifications",
@@ -638,9 +633,6 @@
 	"transcription_block_review": "Mark as reviewed",
 	"transcription_block_unreview": "Unmark as reviewed",
 	"transcription_reviewed_count": "{reviewed} of {total} reviewed",
-	"transcription_mark_all_reviewed": "Mark all as reviewed",
-	"transcription_mark_all_reviewed_disabled": "All blocks are already marked as reviewed",
-	"transcription_mark_all_reviewed_error": "Failed to mark all as reviewed. Please try again.",
 	"training_ocr_heading": "Train Kurrent recognition",
 	"training_ocr_description": "Start a new training run using the reviewed OCR blocks to improve recognition accuracy for Kurrent script.",
 	"training_ocr_blocks_ready": "{blocks} reviewed blocks ready / {docs} documents",

frontend/messages/es.json

@@ -445,12 +445,8 @@
 	"person_mention_load_error": "No se pudo cargar la persona.",
 	"person_mention_loading": "Cargando persona…",
 	"person_mention_popup_empty": "No se encontraron personas",
-	"person_mention_search_label": "Buscar persona",
-	"person_mention_search_prompt": "Escribe un nombre…",
 	"person_mention_btn_label": "Vincular persona",
 	"person_mention_create_new": "Crear nueva persona",
-	"person_mention_results_count_singular": "1 persona encontrada",
-	"person_mention_results_count_plural": "{count} personas encontradas",
 	"transcription_editor_aria_label": "Texto de transcripción",
 	"person_born_name_prefix": "n.",
 	"page_title_home": "Archivo",
@@ -526,7 +522,6 @@
 	"notification_filter_unread": "No leídas",
 	"notification_filter_mention": "Mención",
 	"notification_filter_reply": "Respuesta",
-	"notification_error_generic": "La acción ha fallado. Por favor, inténtalo de nuevo.",
 	"notification_mark_all_read_aria": "Marcar todas las notificaciones como leídas",
 	"notification_load_more": "Cargar anteriores",
 	"notification_empty_history": "Sin notificaciones",
@@ -638,9 +633,6 @@
 	"transcription_block_review": "Marcar como revisado",
 	"transcription_block_unreview": "Desmarcar como revisado",
 	"transcription_reviewed_count": "{reviewed} de {total} revisados",
-	"transcription_mark_all_reviewed": "Marcar todo como revisado",
-	"transcription_mark_all_reviewed_disabled": "Todos los bloques ya están marcados como revisados",
-	"transcription_mark_all_reviewed_error": "Error al marcar como revisado. Intente de nuevo.",
 	"training_ocr_heading": "Entrenar reconocimiento Kurrent",
 	"training_ocr_description": "Inicia un nuevo entrenamiento con los bloques OCR revisados para mejorar la precisión de reconocimiento del script Kurrent.",
 	"training_ocr_blocks_ready": "{blocks} bloques revisados listos / {docs} documentos",

frontend/src/__mocks__/$app/navigation.ts

@@ -1,20 +0,0 @@
-// Shared mock for SvelteKit's $app/navigation virtual module.
-// Activated by calling `vi.mock('$app/navigation')` (no factory) in a spec.
-// Per ADR-012: eliminating per-spec factory bodies removes 36 birpc-race surface
-// points; the unified mock keeps every nav export available as a vi.fn().
-//
-// IMPORTANT: consuming specs MUST call `vi.clearAllMocks()` (or per-mock
-// `mockClear()`) in `afterEach` — otherwise call counts leak between tests.
-import { vi } from 'vitest';
-
-export const goto = vi.fn(async () => {});
-export const invalidate = vi.fn(async () => {});
-export const invalidateAll = vi.fn(async () => {});
-export const beforeNavigate = vi.fn();
-export const afterNavigate = vi.fn();
-export const preloadCode = vi.fn(async () => {});
-export const preloadData = vi.fn(async () => {});
-export const pushState = vi.fn();
-export const replaceState = vi.fn();
-export const disableScrollHandling = vi.fn();
-export const onNavigate = vi.fn(() => () => {});

frontend/src/lib/activity/ChronikFuerDichBox.svelte

@@ -1,5 +1,4 @@
 <script lang="ts">
-import { enhance } from '$app/forms';
 import * as m from '$lib/paraglide/messages.js';
 import { relativeTime } from '$lib/shared/utils/time';
 import type { NotificationItem } from '$lib/notification/notifications.svelte';
@@ -7,13 +6,11 @@ import { buildCommentHref } from '$lib/shared/discussion/commentDeepLink';
 
 interface Props {
 	unread: NotificationItem[];
-	optimisticMarkRead: (id: string) => void;
-	optimisticMarkAllRead: () => void;
+	onMarkRead: (n: NotificationItem) => void;
+	onMarkAllRead: () => void;
 }
 
-const { unread, optimisticMarkRead, optimisticMarkAllRead }: Props = $props();
-
-let errorMessage: string | null = $state(null);
+const { unread, onMarkRead, onMarkAllRead }: Props = $props();
 
 function verb(type: NotificationItem['type'], actor: string): string {
 	return type === 'REPLY'
@@ -27,9 +24,6 @@ function href(n: NotificationItem): string {
 </script>
 
 <section class="rounded-sm border border-line bg-surface p-5">
-	{#if errorMessage}
-		<p role="alert" class="px-4 py-2 text-sm text-red-600">{errorMessage}</p>
-	{/if}
 	{#if unread.length === 0}
 		<div data-testid="chronik-inbox-zero" class="flex flex-col items-center gap-3 py-6 text-center">
 			<svg
@@ -72,28 +66,14 @@ function href(n: NotificationItem): string {
 					{m.chronik_for_you_count({ count: unread.length })}
 				</span>
 			</div>
-			<form
-				action="/aktivitaeten?/mark-all-read"
-				method="POST"
-				use:enhance={() => {
-					errorMessage = null;
-					optimisticMarkAllRead();
-					return async ({ result, update }) => {
-						if (result.type === 'failure' || result.type === 'error') {
-							errorMessage = m.notification_error_generic();
-							await update({ reset: false, invalidateAll: false });
-						}
-					};
-				}}
+			<button
+				type="button"
+				data-testid="chronik-mark-all-read"
+				onclick={onMarkAllRead}
+				class="font-sans text-xs font-medium text-ink-3 transition-colors hover:text-ink"
 			>
-				<button
-					type="submit"
-					data-testid="chronik-mark-all-read"
-					class="font-sans text-xs font-medium text-ink-3 transition-colors hover:text-ink"
-				>
-					{m.chronik_mark_all_read()}
-				</button>
-			</form>
+				{m.chronik_mark_all_read()}
+			</button>
 		</div>
 
 		<ul role="list" class="flex flex-col gap-2">
@@ -109,7 +89,7 @@ function href(n: NotificationItem): string {
 							aria-hidden="true"
 							class="mt-0.5 inline-flex h-6 w-6 shrink-0 items-center justify-center rounded-full bg-accent-bg font-sans text-xs font-bold text-accent"
 						>
-							{n.type === 'MENTION' ? '@' : '↩'}
+							{n.type === 'MENTION' ? '@' : '\u21A9'}
 						</span>
 						<div class="min-w-0 flex-1">
 							<p class="font-sans text-sm leading-snug text-ink">
@@ -120,40 +100,25 @@ function href(n: NotificationItem): string {
 							</p>
 						</div>
 					</a>
-					<form
-						action="/aktivitaeten?/dismiss-notification"
-						method="POST"
-						use:enhance={() => {
-							errorMessage = null;
-							optimisticMarkRead(n.id);
-							return async ({ result, update }) => {
-								if (result.type === 'failure' || result.type === 'error') {
-									errorMessage = m.notification_error_generic();
-									await update({ reset: false, invalidateAll: false });
-								}
-							};
-						}}
+					<button
+						type="button"
+						data-testid="chronik-fuerdich-dismiss"
+						aria-label={m.chronik_mark_read_aria()}
+						onclick={() => onMarkRead(n)}
+						class="mt-0.5 shrink-0 rounded-sm p-1 text-ink-3 transition-colors hover:bg-muted hover:text-ink focus-visible:ring-2 focus-visible:ring-focus-ring focus-visible:outline-none"
 					>
-						<input type="hidden" name="notificationId" value={n.id} />
-						<button
-							type="submit"
-							data-testid="chronik-fuerdich-dismiss"
-							aria-label={m.chronik_mark_read_aria()}
-							class="mt-0.5 shrink-0 rounded-sm p-1 text-ink-3 transition-colors hover:bg-muted hover:text-ink focus-visible:ring-2 focus-visible:ring-focus-ring focus-visible:outline-none"
+						<svg
+							xmlns="http://www.w3.org/2000/svg"
+							class="h-4 w-4"
+							fill="none"
+							viewBox="0 0 24 24"
+							stroke="currentColor"
+							stroke-width="2"
+							aria-hidden="true"
 						>
-							<svg
-								xmlns="http://www.w3.org/2000/svg"
-								class="h-4 w-4"
-								fill="none"
-								viewBox="0 0 24 24"
-								stroke="currentColor"
-								stroke-width="2"
-								aria-hidden="true"
-							>
-								<path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
-							</svg>
-						</button>
-					</form>
+							<path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
+						</svg>
+					</button>
 				</li>
 			{/each}
 		</ul>

frontend/src/lib/activity/ChronikFuerDichBox.svelte.spec.ts

@@ -5,36 +5,7 @@ import { page, userEvent } from 'vitest/browser';
 import ChronikFuerDichBox from './ChronikFuerDichBox.svelte';
 import type { NotificationItem } from '$lib/notification/notifications.svelte';
 
-const mockFormResult = vi.hoisted(() => ({ type: 'success' as string }));
-
-vi.mock('$app/forms', () => ({
-	enhance(
-		node: HTMLFormElement,
-		submit?: (opts: {
-			formData: FormData;
-		}) => (opts: {
-			result: { type: string; data?: Record<string, unknown> };
-			update: () => Promise<void>;
-		}) => Promise<void>
-	) {
-		const handler = async (e: Event) => {
-			e.preventDefault();
-			const cb = submit?.({ formData: new FormData(node) } as never);
-			if (typeof cb === 'function') {
-				await (
-					cb as (o: { result: typeof mockFormResult; update: () => Promise<void> }) => Promise<void>
-				)({ result: mockFormResult, update: async () => {} });
-			}
-		};
-		node.addEventListener('submit', handler);
-		return { destroy: () => node.removeEventListener('submit', handler) };
-	}
-}));
-
-afterEach(() => {
-	cleanup();
-	mockFormResult.type = 'success';
-});
+afterEach(cleanup);
 
 function notif(partial: Partial<NotificationItem>): NotificationItem {
 	return {
@@ -55,8 +26,8 @@ describe('ChronikFuerDichBox', () => {
 	it('renders inbox-zero state when there are no unread items', async () => {
 		render(ChronikFuerDichBox, {
 			unread: [],
-			optimisticMarkRead: vi.fn(),
-			optimisticMarkAllRead: vi.fn()
+			onMarkRead: vi.fn(),
+			onMarkAllRead: vi.fn()
 		});
 		const zero = document.querySelector('[data-testid="chronik-inbox-zero"]');
 		expect(zero).not.toBeNull();
@@ -66,8 +37,8 @@ describe('ChronikFuerDichBox', () => {
 	it('links to the archived mentions in the inbox-zero state', async () => {
 		render(ChronikFuerDichBox, {
 			unread: [],
-			optimisticMarkRead: vi.fn(),
-			optimisticMarkAllRead: vi.fn()
+			onMarkRead: vi.fn(),
+			onMarkAllRead: vi.fn()
 		});
 		const link = document.querySelector('a[href="/aktivitaeten?filter=fuer-dich"]');
 		expect(link).not.toBeNull();
@@ -76,8 +47,8 @@ describe('ChronikFuerDichBox', () => {
 	it('renders the count badge with correct total when unread exists', async () => {
 		render(ChronikFuerDichBox, {
 			unread: [notif({ id: 'a' }), notif({ id: 'b' })],
-			optimisticMarkRead: vi.fn(),
-			optimisticMarkAllRead: vi.fn()
+			onMarkRead: vi.fn(),
+			onMarkAllRead: vi.fn()
 		});
 		await expect.element(page.getByText('2 neu')).toBeInTheDocument();
 	});
@@ -85,8 +56,8 @@ describe('ChronikFuerDichBox', () => {
 	it('count badge has aria-live=polite when unread exists', async () => {
 		render(ChronikFuerDichBox, {
 			unread: [notif({ id: 'a' })],
-			optimisticMarkRead: vi.fn(),
-			optimisticMarkAllRead: vi.fn()
+			onMarkRead: vi.fn(),
+			onMarkAllRead: vi.fn()
 		});
 		// Wait for render
 		await expect.element(page.getByText('1 neu')).toBeInTheDocument();
@@ -98,8 +69,8 @@ describe('ChronikFuerDichBox', () => {
 	it('does not render the "Alle gelesen" button when there are no unread items', async () => {
 		render(ChronikFuerDichBox, {
 			unread: [],
-			optimisticMarkRead: vi.fn(),
-			optimisticMarkAllRead: vi.fn()
+			onMarkRead: vi.fn(),
+			onMarkAllRead: vi.fn()
 		});
 		await expect.element(page.getByText('Keine neuen Erwähnungen')).toBeInTheDocument();
 		const all = document.querySelector('[data-testid="chronik-mark-all-read"]');
@@ -109,38 +80,38 @@ describe('ChronikFuerDichBox', () => {
 	it('renders the "Alle gelesen" button when unread exists', async () => {
 		render(ChronikFuerDichBox, {
 			unread: [notif({ id: 'a' })],
-			optimisticMarkRead: vi.fn(),
-			optimisticMarkAllRead: vi.fn()
+			onMarkRead: vi.fn(),
+			onMarkAllRead: vi.fn()
 		});
 		await expect.element(page.getByText('Alle gelesen')).toBeInTheDocument();
 	});
 
-	it('calls optimisticMarkAllRead when the "Alle gelesen" button is submitted', async () => {
-		const optimisticMarkAllRead = vi.fn();
+	it('calls onMarkAllRead when the "Alle gelesen" button is clicked', async () => {
+		const onMarkAllRead = vi.fn();
 		render(ChronikFuerDichBox, {
 			unread: [notif({ id: 'a' })],
-			optimisticMarkRead: vi.fn(),
-			optimisticMarkAllRead
+			onMarkRead: vi.fn(),
+			onMarkAllRead
 		});
 		await userEvent.click(page.getByText('Alle gelesen'));
-		expect(optimisticMarkAllRead).toHaveBeenCalledTimes(1);
+		expect(onMarkAllRead).toHaveBeenCalledTimes(1);
 	});
 
-	it('calls optimisticMarkRead with the notification id when its dismiss button is submitted', async () => {
-		const optimisticMarkRead = vi.fn();
+	it('calls onMarkRead (and not navigation) when a per-item Dismiss button is clicked', async () => {
+		const onMarkRead = vi.fn();
 		const n = notif({ id: 'xyz' });
 		render(ChronikFuerDichBox, {
 			unread: [n],
-			optimisticMarkRead,
-			optimisticMarkAllRead: vi.fn()
+			onMarkRead,
+			onMarkAllRead: vi.fn()
 		});
 		const dismiss = document.querySelector(
 			'[data-testid="chronik-fuerdich-dismiss"]'
 		) as HTMLButtonElement | null;
 		expect(dismiss).not.toBeNull();
 		dismiss?.click();
-		expect(optimisticMarkRead).toHaveBeenCalledTimes(1);
-		expect(optimisticMarkRead.mock.calls[0][0]).toBe('xyz');
+		expect(onMarkRead).toHaveBeenCalledTimes(1);
+		expect(onMarkRead.mock.calls[0][0]).toEqual(n);
 	});
 
 	it('mention row href includes both commentId and annotationId when annotationId is present', async () => {
@@ -153,8 +124,8 @@ describe('ChronikFuerDichBox', () => {
 					annotationId: 'annot-9'
 				})
 			],
-			optimisticMarkRead: vi.fn(),
-			optimisticMarkAllRead: vi.fn()
+			onMarkRead: vi.fn(),
+			onMarkAllRead: vi.fn()
 		});
 		const link = document.querySelector(
 			'a[href="/documents/doc-42?commentId=comment-7&annotationId=annot-9"]'
@@ -165,8 +136,8 @@ describe('ChronikFuerDichBox', () => {
 	it('Dismiss button is a sibling of the document link, never nested inside <a>', async () => {
 		render(ChronikFuerDichBox, {
 			unread: [notif({ id: 'x' })],
-			optimisticMarkRead: vi.fn(),
-			optimisticMarkAllRead: vi.fn()
+			onMarkRead: vi.fn(),
+			onMarkAllRead: vi.fn()
 		});
 		const dismiss = document.querySelector('[data-testid="chronik-fuerdich-dismiss"]');
 		expect(dismiss).not.toBeNull();
@@ -174,22 +145,4 @@ describe('ChronikFuerDichBox', () => {
 		// Prevents the senior-audience tap-drag bug flagged by Leonie.
 		expect(dismiss?.closest('a')).toBeNull();
 	});
-
-	it('shows an accessible error banner when the dismiss action returns a failure', async () => {
-		mockFormResult.type = 'failure';
-		render(ChronikFuerDichBox, {
-			unread: [notif({ id: 'err-1' })],
-			optimisticMarkRead: vi.fn(),
-			optimisticMarkAllRead: vi.fn()
-		});
-		const dismiss = document.querySelector(
-			'[data-testid="chronik-fuerdich-dismiss"]'
-		) as HTMLButtonElement | null;
-		expect(dismiss).not.toBeNull();
-		dismiss?.click();
-		// Allow microtask queue to flush
-		await new Promise((r) => setTimeout(r, 0));
-		const alert = document.querySelector('[role="alert"]');
-		expect(alert).not.toBeNull();
-	});
 });

frontend/src/lib/activity/ChronikFuerDichBox.svelte.test.ts

@@ -4,36 +4,7 @@ import { page } from 'vitest/browser';
 import ChronikFuerDichBox from './ChronikFuerDichBox.svelte';
 import type { NotificationItem } from '$lib/notification/notifications';
 
-const mockFormResult = vi.hoisted(() => ({ type: 'success' as string }));
-
-vi.mock('$app/forms', () => ({
-	enhance(
-		node: HTMLFormElement,
-		submit?: (opts: {
-			formData: FormData;
-		}) => (opts: {
-			result: { type: string; data?: Record<string, unknown> };
-			update: () => Promise<void>;
-		}) => Promise<void>
-	) {
-		const handler = async (e: Event) => {
-			e.preventDefault();
-			const cb = submit?.({ formData: new FormData(node) } as never);
-			if (typeof cb === 'function') {
-				await (
-					cb as (o: { result: typeof mockFormResult; update: () => Promise<void> }) => Promise<void>
-				)({ result: mockFormResult, update: async () => {} });
-			}
-		};
-		node.addEventListener('submit', handler);
-		return { destroy: () => node.removeEventListener('submit', handler) };
-	}
-}));
-
-afterEach(() => {
-	cleanup();
-	mockFormResult.type = 'success';
-});
+afterEach(cleanup);
 
 const mention = (overrides: Partial<NotificationItem> = {}): NotificationItem => ({
 	id: 'n-1',
@@ -51,7 +22,7 @@ const mention = (overrides: Partial<NotificationItem> = {}): NotificationItem =>
 describe('ChronikFuerDichBox', () => {
 	it('renders the inbox-zero state when there are no unread', async () => {
 		render(ChronikFuerDichBox, {
-			props: { unread: [], optimisticMarkRead: () => {}, optimisticMarkAllRead: () => {} }
+			props: { unread: [], onMarkRead: () => {}, onMarkAllRead: () => {} }
 		});
 
 		await expect.element(page.getByText(/keine neuen erwähnungen/i)).toBeVisible();
@@ -63,8 +34,8 @@ describe('ChronikFuerDichBox', () => {
 		render(ChronikFuerDichBox, {
 			props: {
 				unread: [mention(), mention({ id: 'n-2' }), mention({ id: 'n-3' })],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {}
+				onMarkRead: () => {},
+				onMarkAllRead: () => {}
 			}
 		});
 
@@ -76,8 +47,8 @@ describe('ChronikFuerDichBox', () => {
 		render(ChronikFuerDichBox, {
 			props: {
 				unread: [mention({ id: 'n-m', type: 'MENTION' }), mention({ id: 'n-r', type: 'REPLY' })],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {}
+				onMarkRead: () => {},
+				onMarkAllRead: () => {}
 			}
 		});
 
@@ -91,8 +62,8 @@ describe('ChronikFuerDichBox', () => {
 		render(ChronikFuerDichBox, {
 			props: {
 				unread: [mention({ actorName: 'Bertha' })],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {}
+				onMarkRead: () => {},
+				onMarkAllRead: () => {}
 			}
 		});
 
@@ -105,8 +76,8 @@ describe('ChronikFuerDichBox', () => {
 		render(ChronikFuerDichBox, {
 			props: {
 				unread: [mention({ type: 'REPLY', actorName: 'Carl' })],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {}
+				onMarkRead: () => {},
+				onMarkAllRead: () => {}
 			}
 		});
 
@@ -115,11 +86,11 @@ describe('ChronikFuerDichBox', () => {
 			.toBeVisible();
 	});
 
-	it('calls optimisticMarkRead with the notification id when its dismiss button is clicked', async () => {
-		const optimisticMarkRead = vi.fn();
+	it('calls onMarkRead with the notification when its dismiss button is clicked', async () => {
+		const onMarkRead = vi.fn();
 		const item = mention({ id: 'n-7' });
 		render(ChronikFuerDichBox, {
-			props: { unread: [item], optimisticMarkRead, optimisticMarkAllRead: () => {} }
+			props: { unread: [item], onMarkRead, onMarkAllRead: () => {} }
 		});
 
 		const dismiss = document.querySelector(
@@ -127,55 +98,35 @@ describe('ChronikFuerDichBox', () => {
 		) as HTMLElement;
 		dismiss.click();
 
-		expect(optimisticMarkRead).toHaveBeenCalledWith('n-7');
+		expect(onMarkRead).toHaveBeenCalledWith(item);
 	});
 
-	it('calls optimisticMarkAllRead when the mark-all-read button is clicked', async () => {
-		const optimisticMarkAllRead = vi.fn();
+	it('calls onMarkAllRead when the mark-all-read button is clicked', async () => {
+		const onMarkAllRead = vi.fn();
 		render(ChronikFuerDichBox, {
 			props: {
 				unread: [mention()],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead
+				onMarkRead: () => {},
+				onMarkAllRead
 			}
 		});
 
 		const btn = document.querySelector('[data-testid="chronik-mark-all-read"]') as HTMLElement;
 		btn.click();
 
-		expect(optimisticMarkAllRead).toHaveBeenCalledOnce();
+		expect(onMarkAllRead).toHaveBeenCalledOnce();
 	});
 
 	it('builds a deep-link href to the comment for each notification', async () => {
 		render(ChronikFuerDichBox, {
 			props: {
 				unread: [mention({ documentId: 'doc-x', referenceId: 'ref-y', annotationId: null })],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {}
+				onMarkRead: () => {},
+				onMarkAllRead: () => {}
 			}
 		});
 
 		const link = document.querySelector('ul[role="list"] li a') as HTMLAnchorElement;
 		expect(link.getAttribute('href')).toContain('doc-x');
 	});
-
-	it('shows an accessible error banner when the dismiss action returns a failure', async () => {
-		mockFormResult.type = 'failure';
-		render(ChronikFuerDichBox, {
-			props: {
-				unread: [mention({ id: 'err-1' })],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {}
-			}
-		});
-
-		const dismiss = document.querySelector(
-			'[data-testid="chronik-fuerdich-dismiss"]'
-		) as HTMLElement;
-		dismiss.click();
-		// Allow microtask queue to flush
-		await new Promise((r) => setTimeout(r, 0));
-		const alert = document.querySelector('[role="alert"]');
-		expect(alert).not.toBeNull();
-	});
 });

frontend/src/lib/document/BulkDocumentEditLayout.svelte

@@ -17,7 +17,6 @@ import PdfViewer from '$lib/document/viewer/PdfViewer.svelte';
 import { bulkTitleFromFilename } from '$lib/document/filename';
 import type { Tag } from '$lib/tag/TagInput.svelte';
 import type { components } from '$lib/generated/api';
-import { withCsrf } from '$lib/shared/cookies';
 
 type Person = components['schemas']['Person'];
 
@@ -184,10 +183,7 @@ async function saveUpload() {
 		// FormData with per-chunk progress. Session cookie is sent automatically
 		// by the browser for same-origin requests.
 		try {
-			const res = await fetch(
-				'/api/documents/quick-upload',
-				withCsrf({ method: 'POST', body: formData })
-			);
+			const res = await fetch('/api/documents/quick-upload', { method: 'POST', body: formData });
 			const body = await res.json().catch(() => ({ errors: [] }));
 			const errorFilenames = new Set<string>(
 				(body.errors ?? []).map((err: { filename: string }) => err.filename)

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

@@ -4,7 +4,7 @@ import { cleanup, render } from 'vitest-browser-svelte';
 import { page, userEvent } from 'vitest/browser';
 import BulkDocumentEditLayout from './BulkDocumentEditLayout.svelte';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({ goto: vi.fn() }));
 
 afterEach(() => {
 	cleanup();

frontend/src/lib/document/BulkSelectionBar.svelte.spec.ts

@@ -5,7 +5,7 @@ import { goto } from '$app/navigation';
 import BulkSelectionBar from './BulkSelectionBar.svelte';
 import { bulkSelectionStore } from '$lib/document/bulkSelection.svelte';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({ goto: vi.fn() }));
 
 afterEach(() => {
 	cleanup();

frontend/src/lib/document/DocumentRow.svelte.spec.ts

@@ -6,7 +6,7 @@ import DocumentRow from './DocumentRow.svelte';
 import { bulkSelectionStore } from '$lib/document/bulkSelection.svelte';
 import type { components } from '$lib/generated/api';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({ goto: vi.fn() }));
 
 afterEach(() => {
 	cleanup();

frontend/src/lib/document/DocumentRow.svelte.test.ts

@@ -2,7 +2,19 @@ import { describe, it, expect, vi, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: vi.fn(),
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 const { default: DocumentRow } = await import('./DocumentRow.svelte');
 

frontend/src/lib/document/transcription/TranscriptionBlock.svelte.spec.ts

@@ -1,7 +1,7 @@
 import { describe, it, expect, vi, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
-import TranscriptionBlockHost from './TranscriptionBlock.test-fixture.svelte';
+import TranscriptionBlockHost from './TranscriptionBlock.test-host.svelte';
 import type { ConfirmService } from '$lib/shared/services/confirm.svelte.js';
 
 afterEach(cleanup);

frontend/src/lib/document/transcription/TranscriptionEditView.svelte

@@ -6,7 +6,6 @@ import TranscribeCoachEmptyState from '$lib/shared/help/TranscribeCoachEmptyStat
 import type { PersonMention, TranscriptionBlockData } from '$lib/shared/types';
 import { createBlockAutoSave } from '$lib/document/transcription/useBlockAutoSave.svelte';
 import { createBlockDragDrop } from '$lib/document/transcription/useBlockDragDrop.svelte';
-import { withCsrf } from '$lib/shared/cookies';
 
 type Props = {
 	documentId: string;
@@ -50,7 +49,6 @@ let activeBlockId: string | null = $state(null);
 let localLabels: string[] = $derived.by(() => [...trainingLabels]);
 let listEl: HTMLElement | null = $state(null);
 let markingAllReviewed = $state(false);
-let markAllError = $state<string | null>(null);
 
 const sortedBlocks = $derived([...blocks].sort((a, b) => a.sortOrder - b.sortOrder));
 const hasBlocks = $derived(blocks.length > 0);
@@ -69,11 +67,8 @@ $effect(() => {
 async function handleMarkAllReviewed() {
 	if (!onMarkAllReviewed) return;
 	markingAllReviewed = true;
-	markAllError = null;
 	try {
 		await onMarkAllReviewed();
-	} catch {
-		markAllError = m.transcription_mark_all_reviewed_error();
 	} finally {
 		markingAllReviewed = false;
 	}
@@ -114,14 +109,11 @@ function handleDelete(blockId: string) {
 
 async function reorder(newOrder: string[]) {
 	try {
-		const res = await fetch(
-			`/api/documents/${documentId}/transcription-blocks/reorder`,
-			withCsrf({
-				method: 'PUT',
-				headers: { 'Content-Type': 'application/json' },
-				body: JSON.stringify({ blockIds: newOrder })
-			})
-		);
+		const res = await fetch(`/api/documents/${documentId}/transcription-blocks/reorder`, {
+			method: 'PUT',
+			headers: { 'Content-Type': 'application/json' },
+			body: JSON.stringify({ blockIds: newOrder })
+		});
 		if (!res.ok) return;
 		const updated = await res.json();
 		for (const b of updated) {
@@ -177,7 +169,7 @@ async function handleLabelToggle(label: string) {
 					<button
 						onclick={handleMarkAllReviewed}
 						disabled={allReviewed || markingAllReviewed}
-						title={allReviewed ? m.transcription_mark_all_reviewed_disabled() : undefined}
+						title={allReviewed ? 'Alle Blöcke sind bereits als fertig markiert' : undefined}
 						class="flex min-h-[44px] items-center gap-1.5 rounded-sm px-3 font-sans text-xs font-medium text-brand-navy/80 transition-colors hover:text-brand-navy focus-visible:ring-2 focus-visible:ring-brand-navy disabled:opacity-40"
 					>
 						{#if markingAllReviewed}
@@ -215,7 +207,7 @@ async function handleLabelToggle(label: string) {
 								<path stroke-linecap="round" stroke-linejoin="round" d="M5 13l4 4L19 7" />
 							</svg>
 						{/if}
-						{m.transcription_mark_all_reviewed()}
+						Alle als fertig markieren
 					</button>
 				{/if}
 			</div>
@@ -225,31 +217,6 @@ async function handleLabelToggle(label: string) {
 					style="width: {reviewProgress}%"
 				></div>
 			</div>
-			{#if markAllError}
-				<div
-					role="alert"
-					class="mt-1.5 flex items-center gap-2 rounded-sm border border-red-200 bg-red-50 px-3 py-2 font-sans text-sm text-red-700"
-				>
-					<span class="flex-1">{markAllError}</span>
-					<button
-						onclick={() => (markAllError = null)}
-						aria-label={m.comp_dismiss()}
-						class="flex min-h-[44px] min-w-[44px] items-center justify-center rounded text-red-600 hover:text-red-700 focus-visible:ring-2 focus-visible:ring-red-500"
-					>
-						<svg
-							class="h-4 w-4"
-							fill="none"
-							stroke="currentColor"
-							stroke-width="2"
-							viewBox="0 0 24 24"
-							xmlns="http://www.w3.org/2000/svg"
-							aria-hidden="true"
-						>
-							<path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
-						</svg>
-					</button>
-				</div>
-			{/if}
 		</div>
 		<div class="p-4">
 			<!-- svelte-ignore a11y_no_static_element_interactions -->

frontend/src/lib/document/transcription/TranscriptionEditView.svelte.spec.ts

@@ -3,7 +3,6 @@ import { cleanup, render } from 'vitest-browser-svelte';
 import { page, userEvent } from 'vitest/browser';
 import TranscriptionEditView from './TranscriptionEditView.svelte';
 import { createConfirmService, CONFIRM_KEY } from '$lib/shared/services/confirm.svelte.js';
-import { m } from '$lib/paraglide/messages.js';
 
 afterEach(cleanup);
 
@@ -313,14 +312,14 @@ describe('TranscriptionEditView — mark all reviewed', () => {
 			onMarkAllReviewed: vi.fn().mockResolvedValue(undefined)
 		});
 		await expect
-			.element(page.getByRole('button', { name: m.transcription_mark_all_reviewed() }))
+			.element(page.getByRole('button', { name: /Alle als fertig markieren/ }))
 			.toBeInTheDocument();
 	});
 
 	it('does not show "Alle als fertig markieren" button when onMarkAllReviewed is not provided', async () => {
 		renderView({ blocks: [unreviewedBlock1, unreviewedBlock2] });
 		await expect
-			.element(page.getByRole('button', { name: m.transcription_mark_all_reviewed() }))
+			.element(page.getByRole('button', { name: /Alle als fertig markieren/ }))
 			.not.toBeInTheDocument();
 	});
 
@@ -330,7 +329,7 @@ describe('TranscriptionEditView — mark all reviewed', () => {
 			onMarkAllReviewed: vi.fn().mockResolvedValue(undefined)
 		});
 		await expect
-			.element(page.getByRole('button', { name: m.transcription_mark_all_reviewed() }))
+			.element(page.getByRole('button', { name: /Alle als fertig markieren/ }))
 			.toBeDisabled();
 	});
 
@@ -344,7 +343,7 @@ describe('TranscriptionEditView — mark all reviewed', () => {
 		// userEvent.click() via Playwright CDP doesn't reliably trigger Svelte 5 onclick
 		// handlers when a TipTap editor is mounted in the same component tree.
 		const btn = (await page
-			.getByRole('button', { name: m.transcription_mark_all_reviewed() })
+			.getByRole('button', { name: /Alle als fertig markieren/ })
 			.element()) as HTMLButtonElement;
 		btn.dispatchEvent(new MouseEvent('click', { bubbles: true, cancelable: true }));
 		await vi.waitFor(() => expect(onMarkAllReviewed).toHaveBeenCalledTimes(1));
@@ -362,83 +361,12 @@ describe('TranscriptionEditView — mark all reviewed', () => {
 
 		// Same CDP click workaround: dispatch from browser JS to reliably fire Svelte 5 onclick
 		const btnEl = (await page
-			.getByRole('button', { name: m.transcription_mark_all_reviewed() })
+			.getByRole('button', { name: /Alle als fertig markieren/ })
 			.element()) as HTMLButtonElement;
 		btnEl.dispatchEvent(new MouseEvent('click', { bubbles: true, cancelable: true }));
 		await expect
-			.element(page.getByRole('button', { name: m.transcription_mark_all_reviewed() }))
+			.element(page.getByRole('button', { name: /Alle als fertig markieren/ }))
 			.toBeDisabled();
 		resolveMarkAll();
 	});
-
-	it('shows error message when onMarkAllReviewed callback rejects', async () => {
-		const onMarkAllReviewed = vi.fn().mockRejectedValue(new Error('INTERNAL_ERROR'));
-		renderView({ blocks: [unreviewedBlock1, unreviewedBlock2], onMarkAllReviewed });
-
-		const btnEl = (await page
-			.getByRole('button', { name: m.transcription_mark_all_reviewed() })
-			.element()) as HTMLButtonElement;
-		btnEl.dispatchEvent(new MouseEvent('click', { bubbles: true, cancelable: true }));
-
-		await expect.element(page.getByRole('alert')).toBeInTheDocument();
-		await expect
-			.element(page.getByRole('alert'))
-			.toHaveTextContent(m.transcription_mark_all_reviewed_error());
-	});
-
-	it('clears error when dismiss button is clicked', async () => {
-		const onMarkAllReviewed = vi.fn().mockRejectedValue(new Error('INTERNAL_ERROR'));
-		renderView({ blocks: [unreviewedBlock1, unreviewedBlock2], onMarkAllReviewed });
-
-		const btnEl = (await page
-			.getByRole('button', { name: m.transcription_mark_all_reviewed() })
-			.element()) as HTMLButtonElement;
-		btnEl.dispatchEvent(new MouseEvent('click', { bubbles: true, cancelable: true }));
-		await expect.element(page.getByRole('alert')).toBeInTheDocument();
-
-		const dismissEl = (await page
-			.getByRole('button', { name: m.comp_dismiss() })
-			.element()) as HTMLButtonElement;
-		dismissEl.dispatchEvent(new MouseEvent('click', { bubbles: true, cancelable: true }));
-
-		await expect.element(page.getByRole('alert')).not.toBeInTheDocument();
-	});
-
-	it('clears error on next successful markAllReviewed call', async () => {
-		const onMarkAllReviewed = vi
-			.fn()
-			.mockRejectedValueOnce(new Error('INTERNAL_ERROR'))
-			.mockResolvedValue(undefined);
-		renderView({ blocks: [unreviewedBlock1, unreviewedBlock2], onMarkAllReviewed });
-
-		const btnEl = (await page
-			.getByRole('button', { name: m.transcription_mark_all_reviewed() })
-			.element()) as HTMLButtonElement;
-		btnEl.dispatchEvent(new MouseEvent('click', { bubbles: true, cancelable: true }));
-		await expect.element(page.getByRole('alert')).toBeInTheDocument();
-		// Wait for the button to be re-enabled before the second click — ensures the first
-		// async rejection has fully settled and Svelte has flushed state changes
-		await expect
-			.element(page.getByRole('button', { name: m.transcription_mark_all_reviewed() }))
-			.not.toBeDisabled();
-
-		btnEl.dispatchEvent(new MouseEvent('click', { bubbles: true, cancelable: true }));
-
-		await expect.element(page.getByRole('alert')).not.toBeInTheDocument();
-	});
-
-	it('re-enables button after markAllReviewed failure', async () => {
-		const onMarkAllReviewed = vi.fn().mockRejectedValue(new Error('INTERNAL_ERROR'));
-		renderView({ blocks: [unreviewedBlock1, unreviewedBlock2], onMarkAllReviewed });
-
-		const btnEl = (await page
-			.getByRole('button', { name: m.transcription_mark_all_reviewed() })
-			.element()) as HTMLButtonElement;
-		btnEl.dispatchEvent(new MouseEvent('click', { bubbles: true, cancelable: true }));
-		await expect.element(page.getByRole('alert')).toBeInTheDocument();
-
-		await expect
-			.element(page.getByRole('button', { name: m.transcription_mark_all_reviewed() }))
-			.not.toBeDisabled();
-	});
 });

frontend/src/lib/document/transcription/useBlockAutoSave.svelte.ts

@@ -1,6 +1,5 @@
 import { SvelteMap } from 'svelte/reactivity';
 import type { PersonMention } from '$lib/shared/types';
-import { withCsrf } from '$lib/shared/cookies';
 
 export type SaveState = 'idle' | 'saving' | 'saved' | 'fading' | 'error';
 
@@ -117,15 +116,12 @@ export function createBlockAutoSave({ saveFn, documentId }: Options) {
 		for (const [blockId, text] of pendingTexts) {
 			const mentions = pendingMentions.get(blockId) ?? [];
 			clearDebounce(blockId);
-			void fetch(
-				`/api/documents/${documentId}/transcription-blocks/${blockId}`,
-				withCsrf({
-					method: 'PUT',
-					headers: { 'Content-Type': 'application/json' },
-					body: JSON.stringify({ text, mentionedPersons: mentions }),
-					keepalive: true
-				})
-			);
+			void fetch(`/api/documents/${documentId}/transcription-blocks/${blockId}`, {
+				method: 'PUT',
+				headers: { 'Content-Type': 'application/json' },
+				body: JSON.stringify({ text, mentionedPersons: mentions }),
+				keepalive: true
+			});
 			pendingTexts.delete(blockId);
 			pendingMentions.delete(blockId);
 		}

frontend/src/lib/document/transcription/useTranscriptionBlocks.svelte.test.ts

@@ -259,15 +259,12 @@ describe('createTranscriptionBlocks.markAllReviewed', () => {
 		expect(ctrl.blocks.every((b) => b.reviewed)).toBe(true);
 	});
 
-	it('throws and leaves blocks unchanged when PUT returns non-OK', async () => {
+	it('is a no-op when PUT returns non-OK', async () => {
 		const fetchImpl = vi.fn(async (url: RequestInfo | URL, init?: RequestInit) => {
 			const u = url.toString();
 			const method = init?.method ?? 'GET';
 			if (u.includes('/review-all') && method === 'PUT') {
-				return new Response(JSON.stringify({ code: 'INTERNAL_ERROR' }), {
-					status: 500,
-					headers: { 'Content-Type': 'application/json' }
-				});
+				return new Response('', { status: 500 });
 			}
 			return new Response(JSON.stringify([baseBlock({ id: 'b-1', reviewed: false })]), {
 				status: 200,
@@ -277,26 +274,7 @@ describe('createTranscriptionBlocks.markAllReviewed', () => {
 
 		const ctrl = createTranscriptionBlocks({ documentId: () => 'doc-1', fetchImpl });
 		await ctrl.load();
-		await expect(ctrl.markAllReviewed()).rejects.toThrow('INTERNAL_ERROR');
-		expect(ctrl.blocks[0].reviewed).toBe(false);
-	});
-
-	it('throws INTERNAL_ERROR when PUT returns non-JSON body (e.g. nginx 502)', async () => {
-		const fetchImpl = vi.fn(async (url: RequestInfo | URL, init?: RequestInit) => {
-			const u = url.toString();
-			const method = init?.method ?? 'GET';
-			if (u.includes('/review-all') && method === 'PUT') {
-				return new Response('Bad Gateway', { status: 502 });
-			}
-			return new Response(JSON.stringify([baseBlock({ id: 'b-1', reviewed: false })]), {
-				status: 200,
-				headers: { 'Content-Type': 'application/json' }
-			});
-		});
-
-		const ctrl = createTranscriptionBlocks({ documentId: () => 'doc-1', fetchImpl });
-		await ctrl.load();
-		await expect(ctrl.markAllReviewed()).rejects.toThrow('INTERNAL_ERROR');
+		await ctrl.markAllReviewed();
 		expect(ctrl.blocks[0].reviewed).toBe(false);
 	});
 });

frontend/src/lib/document/transcription/useTranscriptionBlocks.svelte.ts

@@ -2,7 +2,6 @@
    lastEditedAt's $derived are scope-local to one computation; they're never
    stored on $state. */
 import type { TranscriptionBlockData, PersonMention } from '$lib/shared/types';
-import { makeCsrfFetch } from '$lib/shared/cookies';
 import { saveBlockWithConflictRetry } from './saveBlockWithConflictRetry';
 import { BlockConflictResolvedError } from './blockConflictMerge';
 
@@ -42,7 +41,7 @@ export function createTranscriptionBlocks(
 	options: TranscriptionBlocksOptions
 ): TranscriptionBlocksController {
 	const { documentId } = options;
-	const fetchImpl = makeCsrfFetch(options.fetchImpl ?? fetch);
+	const fetchImpl = options.fetchImpl ?? fetch;
 
 	let blocks = $state<TranscriptionBlockData[]>([]);
 	let annotationReloadKey = $state(0);
@@ -120,11 +119,7 @@ export function createTranscriptionBlocks(
 		const res = await fetchImpl(`/api/documents/${documentId()}/transcription-blocks/review-all`, {
 			method: 'PUT'
 		});
-		if (!res.ok) {
-			const body = await res.json().catch(() => ({}));
-			// Never render body.message — route through getErrorMessage() to prevent leaking backend internals
-			throw new Error((body as { code?: string })?.code ?? 'INTERNAL_ERROR');
-		}
+		if (!res.ok) return;
 		const updated = (await res.json()) as { id: string; reviewed: boolean }[];
 		for (const b of updated) {
 			const existing = blocks.find((x) => x.id === b.id);

frontend/src/lib/notification/NotificationBell.svelte

@@ -1,8 +1,10 @@
 <script lang="ts">
 import { onMount, onDestroy } from 'svelte';
+import { goto } from '$app/navigation';
 import { m } from '$lib/paraglide/messages.js';
 import { clickOutside } from '$lib/shared/actions/clickOutside';
 import { notificationStore } from '$lib/notification/notifications.svelte';
+import { buildCommentHref } from '$lib/shared/discussion/commentDeepLink';
 import NotificationDropdown from './NotificationDropdown.svelte';
 
 let open = $state(false);
@@ -28,6 +30,17 @@ function closeDropdown() {
 	bellButtonEl?.focus();
 }
 
+async function handleMarkRead(notification: Parameters<typeof stream.markRead>[0]) {
+	await stream.markRead(notification);
+	const url = buildCommentHref(
+		notification.documentId,
+		notification.referenceId,
+		notification.annotationId
+	);
+	closeDropdown();
+	goto(url);
+}
+
 function handleKeydown(event: KeyboardEvent) {
 	if (event.key === 'Escape' && open) {
 		event.stopPropagation();
@@ -100,8 +113,8 @@ onDestroy(() => {
 	{#if open}
 		<NotificationDropdown
 			notifications={stream.notifications}
-			optimisticMarkRead={stream.optimisticMarkRead}
-			optimisticMarkAllRead={stream.optimisticMarkAllRead}
+			onMarkRead={handleMarkRead}
+			onMarkAllRead={stream.markAllRead}
 			onClose={closeDropdown}
 		/>
 	{/if}

frontend/src/lib/notification/NotificationBell.svelte.spec.ts

@@ -3,18 +3,10 @@ import { cleanup, render } from 'vitest-browser-svelte';
 import type { NotificationItem } from '$lib/notification/notifications';
 import NotificationBell from './NotificationBell.svelte';
 
-vi.mock('$app/navigation');
-vi.mock('$app/forms', () => ({
-	enhance(node: HTMLFormElement, submit?: (opts: { formData: FormData }) => unknown) {
-		const handler = (e: Event) => {
-			e.preventDefault();
-			submit?.({ formData: new FormData(node) } as never);
-		};
-		node.addEventListener('submit', handler);
-		return { destroy: () => node.removeEventListener('submit', handler) };
-	}
-}));
+const gotoMock = vi.hoisted(() => vi.fn());
+vi.mock('$app/navigation', () => ({ goto: gotoMock, beforeNavigate: vi.fn() }));
 
+const mockMarkRead = vi.hoisted(() => vi.fn().mockResolvedValue(undefined));
 const mockNotificationList = vi.hoisted((): { value: NotificationItem[] } => ({ value: [] }));
 
 vi.mock('$lib/notification/notifications.svelte', () => ({
@@ -25,17 +17,18 @@ vi.mock('$lib/notification/notifications.svelte', () => ({
 		get unreadCount() {
 			return mockNotificationList.value.length;
 		},
-		optimisticMarkRead: vi.fn(),
-		optimisticMarkAllRead: vi.fn(),
+		markRead: mockMarkRead,
 		fetchNotifications: vi.fn().mockResolvedValue(undefined),
 		init: vi.fn(),
-		destroy: vi.fn()
+		destroy: vi.fn(),
+		markAllRead: vi.fn()
 	}
 }));
 
 afterEach(() => {
 	cleanup();
-	vi.clearAllMocks();
+	gotoMock.mockClear();
+	mockMarkRead.mockClear();
 	mockNotificationList.value = [];
 });
 
@@ -52,6 +45,16 @@ const makeNotification = (overrides: Partial<NotificationItem> = {}): Notificati
 	...overrides
 });
 
+async function openDropdownAndClickFirstNotification() {
+	const bellButton = document.querySelector<HTMLButtonElement>('button[aria-haspopup="true"]')!;
+	bellButton.click();
+	await vi.waitFor(() => {
+		expect(document.querySelector('[role="dialog"]')).not.toBeNull();
+	});
+	const notifButton = document.querySelector<HTMLButtonElement>('[role="list"] button')!;
+	notifButton.click();
+}
+
 describe('NotificationBell — cursor and tooltip', () => {
 	it('bell button has cursor-pointer class', async () => {
 		render(NotificationBell);
@@ -79,3 +82,29 @@ describe('NotificationBell — cursor and tooltip', () => {
 		expect(btn.getAttribute('aria-label')).toBe(btn.getAttribute('title'));
 	});
 });
+
+describe('NotificationBell', () => {
+	it('handleMarkRead navigates to URL including annotationId when notification has annotationId', async () => {
+		mockNotificationList.value = [makeNotification({ annotationId: 'annot-1' })];
+		render(NotificationBell);
+
+		await openDropdownAndClickFirstNotification();
+
+		await vi.waitFor(() => {
+			expect(gotoMock).toHaveBeenCalledWith(
+				'/documents/doc-1?commentId=ref-1&annotationId=annot-1'
+			);
+		});
+	});
+
+	it('handleMarkRead navigates to commentId-only URL when annotationId is absent', async () => {
+		mockNotificationList.value = [makeNotification({ annotationId: null })];
+		render(NotificationBell);
+
+		await openDropdownAndClickFirstNotification();
+
+		await vi.waitFor(() => {
+			expect(gotoMock).toHaveBeenCalledWith('/documents/doc-1?commentId=ref-1');
+		});
+	});
+});

frontend/src/lib/notification/NotificationDropdown.svelte

@@ -1,21 +1,17 @@
 <script lang="ts">
 import { goto } from '$app/navigation';
-import { enhance } from '$app/forms';
 import { m } from '$lib/paraglide/messages.js';
 import { relativeTime } from '$lib/shared/utils/time';
-import { buildCommentHref } from '$lib/shared/discussion/commentDeepLink';
 import type { NotificationItem } from '$lib/notification/notifications.svelte';
 
 type Props = {
 	notifications: NotificationItem[];
-	optimisticMarkRead: (id: string) => void;
-	optimisticMarkAllRead: () => void;
+	onMarkRead: (notification: NotificationItem) => void;
+	onMarkAllRead: () => void;
 	onClose: () => void;
 };
 
-let { notifications, optimisticMarkRead, optimisticMarkAllRead, onClose }: Props = $props();
-
-let errorMessage = $state<string | null>(null);
+let { notifications, onMarkRead, onMarkAllRead, onClose }: Props = $props();
 
 function handleViewAll() {
 	onClose(); // close first — avoids stale dropdown during navigation transition
@@ -35,35 +31,16 @@ function handleViewAll() {
 			{m.notification_bell_label()}
 		</span>
 		{#if notifications.length > 0}
-			<form
-				action="/aktivitaeten?/mark-all-read"
-				method="POST"
-				use:enhance={() => {
-					errorMessage = null;
-					optimisticMarkAllRead();
-					return async ({ result, update }) => {
-						if (result.type === 'failure' || result.type === 'error') {
-							errorMessage = (result as { data?: { error?: string } }).data?.error ?? m.notification_error_generic();
-							await update({ reset: false, invalidateAll: false });
-						}
-					};
-				}}
+			<button
+				type="button"
+				onclick={onMarkAllRead}
+				class="text-xs font-medium text-ink-3 transition-colors hover:text-ink"
 			>
-				<button
-					type="submit"
-					class="text-xs font-medium text-ink-3 transition-colors hover:text-ink"
-				>
-					{m.notification_mark_all_read()}
-				</button>
-			</form>
+				{m.notification_mark_all_read()}
+			</button>
 		{/if}
 	</div>
 
-	<!-- Error banner (shown when a dismiss or mark-all action fails) -->
-	{#if errorMessage}
-		<p role="alert" class="px-4 py-2 text-sm text-red-600">{errorMessage}</p>
-	{/if}
-
 	<!-- Notification list -->
 	{#if notifications.length === 0}
 		<!-- Empty state -->
@@ -89,93 +66,67 @@ function handleViewAll() {
 		<ul role="list" class="max-h-[24rem] overflow-y-auto">
 			{#each notifications as notification (notification.id)}
 				<li>
-					<form
-						action="/aktivitaeten?/dismiss-notification"
-						method="POST"
-						class="contents"
-						use:enhance={() => {
-							errorMessage = null;
-							optimisticMarkRead(notification.id);
-							return async ({ result, update }) => {
-								if (result.type === 'failure' || result.type === 'error') {
-									errorMessage = (result as { data?: { error?: string } }).data?.error ?? m.notification_error_generic();
-									await update({ reset: false, invalidateAll: false });
-								} else {
-									// Navigate away — no need to update the store since we're leaving the page
-									onClose();
-									goto(
-										buildCommentHref(
-											notification.documentId,
-											notification.referenceId,
-											notification.annotationId
-										)
-									);
-								}
-							};
-						}}
+					<button
+						type="button"
+						onclick={() => onMarkRead(notification)}
+						class="flex w-full cursor-pointer items-start gap-3 border-b border-line px-4 py-3 text-left last:border-b-0 hover:bg-canvas
+							{!notification.read ? 'bg-accent-bg/20' : ''}"
 					>
-						<input type="hidden" name="notificationId" value={notification.id} />
-						<button
-							type="submit"
-							class="flex w-full cursor-pointer items-start gap-3 border-b border-line px-4 py-3.5 text-left last:border-b-0 hover:bg-canvas
-								{!notification.read ? 'bg-accent-bg/20' : ''}"
-						>
-							<!-- Type icon -->
-							<span class="mt-0.5 shrink-0 text-ink-3" aria-hidden="true">
-								{#if notification.type === 'REPLY'}
-									<!-- Reply icon -->
-									<svg
-										xmlns="http://www.w3.org/2000/svg"
-										class="h-4 w-4"
-										fill="none"
-										viewBox="0 0 24 24"
-										stroke="currentColor"
-										stroke-width="2"
-									>
-										<path
-											stroke-linecap="round"
-											stroke-linejoin="round"
-											d="M3 10h10a8 8 0 018 8v2M3 10l6 6m-6-6l6-6"
-										/>
-									</svg>
-								{:else}
-									<!-- Mention icon -->
-									<svg
-										xmlns="http://www.w3.org/2000/svg"
-										class="h-4 w-4"
-										fill="none"
-										viewBox="0 0 24 24"
-										stroke="currentColor"
-										stroke-width="2"
-									>
-										<path
-											stroke-linecap="round"
-											stroke-linejoin="round"
-											d="M16 12a4 4 0 10-8 0 4 4 0 008 0zm0 0v1.5a2.5 2.5 0 005 0V12a9 9 0 10-9 9m4.5-1.206a8.959 8.959 0 01-4.5 1.207"
-										/>
-									</svg>
-								{/if}
-							</span>
-
-							<!-- Text + time -->
-							<div class="min-w-0 flex-1">
-								<p class="text-sm leading-snug text-ink">
-									{notification.type === 'REPLY'
-										? m.notification_type_reply({ actor: notification.actorName })
-										: m.notification_type_mention({ actor: notification.actorName })}
-								</p>
-								<p class="mt-1 text-xs text-ink-3">{relativeTime(notification.createdAt)}</p>
-							</div>
-
-							<!-- Unread dot -->
-							{#if !notification.read}
-								<span
-									class="mt-1.5 h-2 w-2 shrink-0 rounded-full bg-primary"
-									aria-label={m.notification_unread()}
-								></span>
+						<!-- Type icon -->
+						<span class="mt-0.5 shrink-0 text-ink-3" aria-hidden="true">
+							{#if notification.type === 'REPLY'}
+								<!-- Reply icon -->
+								<svg
+									xmlns="http://www.w3.org/2000/svg"
+									class="h-4 w-4"
+									fill="none"
+									viewBox="0 0 24 24"
+									stroke="currentColor"
+									stroke-width="2"
+								>
+									<path
+										stroke-linecap="round"
+										stroke-linejoin="round"
+										d="M3 10h10a8 8 0 018 8v2M3 10l6 6m-6-6l6-6"
+									/>
+								</svg>
+							{:else}
+								<!-- Mention icon -->
+								<svg
+									xmlns="http://www.w3.org/2000/svg"
+									class="h-4 w-4"
+									fill="none"
+									viewBox="0 0 24 24"
+									stroke="currentColor"
+									stroke-width="2"
+								>
+									<path
+										stroke-linecap="round"
+										stroke-linejoin="round"
+										d="M16 12a4 4 0 10-8 0 4 4 0 008 0zm0 0v1.5a2.5 2.5 0 005 0V12a9 9 0 10-9 9m4.5-1.206a8.959 8.959 0 01-4.5 1.207"
+									/>
+								</svg>
 							{/if}
-						</button>
-					</form>
+						</span>
+
+						<!-- Text + time -->
+						<div class="min-w-0 flex-1">
+							<p class="text-sm leading-snug text-ink">
+								{notification.type === 'REPLY'
+									? m.notification_type_reply({ actor: notification.actorName })
+									: m.notification_type_mention({ actor: notification.actorName })}
+							</p>
+							<p class="mt-1 text-xs text-ink-3">{relativeTime(notification.createdAt)}</p>
+						</div>
+
+						<!-- Unread dot -->
+						{#if !notification.read}
+							<span
+								class="mt-1.5 h-2 w-2 shrink-0 rounded-full bg-primary"
+								aria-label={m.notification_unread()}
+							></span>
+						{/if}
+					</button>
 				</li>
 			{/each}
 		</ul>

frontend/src/lib/notification/NotificationDropdown.svelte.test.ts

@@ -4,40 +4,11 @@ import { page } from 'vitest/browser';
 import { goto } from '$app/navigation';
 import NotificationDropdown from './NotificationDropdown.svelte';
 
-vi.mock('$app/navigation');
-
-// Configurable result for the enhance mock — tests that need failure set
-// mockFormResult.type = 'failure' before clicking.
-const mockFormResult = vi.hoisted(() => ({ type: 'success' as string }));
-
-// Invoke the SubmitFunction and always call the returned result callback with
-// mockFormResult so tests can exercise both success and failure branches.
-vi.mock('$app/forms', () => ({
-	enhance(
-		node: HTMLFormElement,
-		submit?: (opts: {
-			formData: FormData;
-		}) => (opts: {
-			result: { type: string; data?: Record<string, unknown> };
-			update: () => Promise<void>;
-		}) => Promise<void>
-	) {
-		const handler = async (e: Event) => {
-			e.preventDefault();
-			const cb = submit?.({ formData: new FormData(node) } as never);
-			if (typeof cb === 'function') {
-				await cb({ result: mockFormResult, update: async () => {} } as never);
-			}
-		};
-		node.addEventListener('submit', handler);
-		return { destroy: () => node.removeEventListener('submit', handler) };
-	}
-}));
+vi.mock('$app/navigation', () => ({ goto: vi.fn() }));
 
 afterEach(() => {
 	cleanup();
 	vi.clearAllMocks();
-	mockFormResult.type = 'success'; // reset to default after each test
 });
 
 const makeNotification = (overrides: Record<string, unknown> = {}) => ({
@@ -58,8 +29,8 @@ describe('NotificationDropdown', () => {
 		render(NotificationDropdown, {
 			props: {
 				notifications: [],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
+				onMarkRead: () => {},
+				onMarkAllRead: () => {},
 				onClose: () => {}
 			}
 		});
@@ -71,8 +42,8 @@ describe('NotificationDropdown', () => {
 		render(NotificationDropdown, {
 			props: {
 				notifications: [],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
+				onMarkRead: () => {},
+				onMarkAllRead: () => {},
 				onClose: () => {}
 			}
 		});
@@ -84,8 +55,8 @@ describe('NotificationDropdown', () => {
 		render(NotificationDropdown, {
 			props: {
 				notifications: [],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
+				onMarkRead: () => {},
+				onMarkAllRead: () => {},
 				onClose: () => {}
 			}
 		});
@@ -99,8 +70,8 @@ describe('NotificationDropdown', () => {
 		render(NotificationDropdown, {
 			props: {
 				notifications: [makeNotification()],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
+				onMarkRead: () => {},
+				onMarkAllRead: () => {},
 				onClose: () => {}
 			}
 		});
@@ -112,8 +83,8 @@ describe('NotificationDropdown', () => {
 		render(NotificationDropdown, {
 			props: {
 				notifications: [makeNotification({ type: 'REPLY', actorName: 'Bert' })],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
+				onMarkRead: () => {},
+				onMarkAllRead: () => {},
 				onClose: () => {}
 			}
 		});
@@ -127,8 +98,8 @@ describe('NotificationDropdown', () => {
 		render(NotificationDropdown, {
 			props: {
 				notifications: [makeNotification({ type: 'MENTION', actorName: 'Clara' })],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
+				onMarkRead: () => {},
+				onMarkAllRead: () => {},
 				onClose: () => {}
 			}
 		});
@@ -145,8 +116,8 @@ describe('NotificationDropdown', () => {
 					makeNotification({ id: 'n1', read: false }),
 					makeNotification({ id: 'n2', read: true })
 				],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
+				onMarkRead: () => {},
+				onMarkAllRead: () => {},
 				onClose: () => {}
 			}
 		});
@@ -155,100 +126,37 @@ describe('NotificationDropdown', () => {
 		expect(unreadDots.length).toBe(1);
 	});
 
-	it('each notification row is wrapped in a form posting to the dismiss action', async () => {
-		render(NotificationDropdown, {
-			props: {
-				notifications: [makeNotification({ id: 'n42' })],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
-				onClose: () => {}
-			}
-		});
-
-		const form = document.querySelector('form[action="/aktivitaeten?/dismiss-notification"]');
-		expect(form).not.toBeNull();
-		expect(form?.getAttribute('method')).toBe('POST');
-	});
-
-	it('the dismiss form has a hidden notificationId input with the notification id', async () => {
-		render(NotificationDropdown, {
-			props: {
-				notifications: [makeNotification({ id: 'n42' })],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
-				onClose: () => {}
-			}
-		});
-
-		const input = document.querySelector<HTMLInputElement>(
-			'form[action="/aktivitaeten?/dismiss-notification"] input[name="notificationId"]'
-		);
-		expect(input?.value).toBe('n42');
-	});
-
-	it('calls optimisticMarkRead with the notification id when a row is submitted', async () => {
-		const optimisticMarkRead = vi.fn();
+	it('calls onMarkRead with the notification when an item is clicked', async () => {
+		const onMarkRead = vi.fn();
 		const n = makeNotification({ id: 'n42', actorName: 'Anna' });
 		render(NotificationDropdown, {
 			props: {
 				notifications: [n],
-				optimisticMarkRead,
-				optimisticMarkAllRead: () => {},
+				onMarkRead,
+				onMarkAllRead: () => {},
 				onClose: () => {}
 			}
 		});
 
 		await page.getByRole('button', { name: /Anna hat auf deinen/i }).click();
 
-		expect(optimisticMarkRead).toHaveBeenCalledWith('n42');
+		expect(onMarkRead).toHaveBeenCalledWith(n);
 	});
 
-	it('the mark-all-read control is a form posting to the mark-all-read action', async () => {
+	it('calls onMarkAllRead when the mark-all-read button is clicked', async () => {
+		const onMarkAllRead = vi.fn();
 		render(NotificationDropdown, {
 			props: {
 				notifications: [makeNotification()],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
-				onClose: () => {}
-			}
-		});
-
-		const form = document.querySelector('form[action="/aktivitaeten?/mark-all-read"]');
-		expect(form).not.toBeNull();
-		expect(form?.getAttribute('method')).toBe('POST');
-	});
-
-	it('calls optimisticMarkAllRead when the mark-all-read button is submitted', async () => {
-		const optimisticMarkAllRead = vi.fn();
-		render(NotificationDropdown, {
-			props: {
-				notifications: [makeNotification()],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead,
+				onMarkRead: () => {},
+				onMarkAllRead,
 				onClose: () => {}
 			}
 		});
 
 		await page.getByRole('button', { name: /alle gelesen/i }).click();
 
-		expect(optimisticMarkAllRead).toHaveBeenCalledOnce();
-	});
-
-	it('shows a role=alert error banner when mark-all-read returns a failure', async () => {
-		mockFormResult.type = 'failure';
-		render(NotificationDropdown, {
-			props: {
-				notifications: [makeNotification()],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
-				onClose: () => {}
-			}
-		});
-
-		await page.getByRole('button', { name: /alle gelesen/i }).click();
-
-		const alert = document.querySelector('[role="alert"]');
-		expect(alert).not.toBeNull();
+		expect(onMarkAllRead).toHaveBeenCalledOnce();
 	});
 
 	it('calls onClose when the view-all button is clicked', async () => {
@@ -256,8 +164,8 @@ describe('NotificationDropdown', () => {
 		render(NotificationDropdown, {
 			props: {
 				notifications: [],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
+				onMarkRead: () => {},
+				onMarkAllRead: () => {},
 				onClose
 			}
 		});
@@ -271,8 +179,8 @@ describe('NotificationDropdown', () => {
 		render(NotificationDropdown, {
 			props: {
 				notifications: [],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
+				onMarkRead: () => {},
+				onMarkAllRead: () => {},
 				onClose: () => {}
 			}
 		});
@@ -285,15 +193,12 @@ describe('NotificationDropdown', () => {
 	it('calls onClose before navigating to /aktivitaeten', async () => {
 		const callOrder: string[] = [];
 		const onClose = vi.fn(() => callOrder.push('close'));
-		vi.mocked(goto).mockImplementation(() => {
-			callOrder.push('goto');
-			return Promise.resolve();
-		});
+		vi.mocked(goto).mockImplementation(() => callOrder.push('goto'));
 		render(NotificationDropdown, {
 			props: {
 				notifications: [],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
+				onMarkRead: () => {},
+				onMarkAllRead: () => {},
 				onClose
 			}
 		});
@@ -307,8 +212,8 @@ describe('NotificationDropdown', () => {
 		render(NotificationDropdown, {
 			props: {
 				notifications: [makeNotification({ id: 'm1', type: 'MENTION', actorName: 'Anna' })],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
+				onMarkRead: () => {},
+				onMarkAllRead: () => {},
 				onClose: () => {}
 			}
 		});
@@ -320,8 +225,8 @@ describe('NotificationDropdown', () => {
 		render(NotificationDropdown, {
 			props: {
 				notifications: [makeNotification({ id: 'r1', type: 'REPLY', actorName: 'Bert' })],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
+				onMarkRead: () => {},
+				onMarkAllRead: () => {},
 				onClose: () => {}
 			}
 		});
@@ -337,78 +242,14 @@ describe('NotificationDropdown', () => {
 					makeNotification({ id: 'n1', actorName: 'First' }),
 					makeNotification({ id: 'n2', actorName: 'Second' })
 				],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
+				onMarkRead: () => {},
+				onMarkAllRead: () => {},
 				onClose: () => {}
 			}
 		});
 
-		const forms = document.querySelectorAll('form[action="/aktivitaeten?/dismiss-notification"]');
-		expect(forms.length).toBe(2);
-	});
-
-	it('calls onClose and goto with the deep-link URL after a successful dismiss', async () => {
-		const onClose = vi.fn();
-		const n = makeNotification({
-			id: 'n42',
-			documentId: 'd1',
-			referenceId: 'c1',
-			annotationId: null,
-			actorName: 'Anna'
-		});
-		render(NotificationDropdown, {
-			props: {
-				notifications: [n],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
-				onClose
-			}
-		});
-
-		await page.getByRole('button', { name: /Anna hat auf deinen/i }).click();
-
-		expect(onClose).toHaveBeenCalledOnce();
-		expect(goto).toHaveBeenCalledWith('/documents/d1?commentId=c1');
-	});
-
-	it('does NOT call onClose or goto when the dismiss action returns a failure', async () => {
-		mockFormResult.type = 'failure';
-		const onClose = vi.fn();
-		const n = makeNotification({ id: 'n99', actorName: 'Bob' });
-		render(NotificationDropdown, {
-			props: {
-				notifications: [n],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
-				onClose
-			}
-		});
-
-		await page.getByRole('button', { name: /Bob hat auf deinen/i }).click();
-
-		expect(onClose).not.toHaveBeenCalled();
-		expect(goto).not.toHaveBeenCalled();
-	});
-
-	it('calls goto with annotationId appended when the notification has an annotationId', async () => {
-		const n = makeNotification({
-			id: 'n55',
-			documentId: 'd1',
-			referenceId: 'c1',
-			annotationId: 'a1',
-			actorName: 'Eva'
-		});
-		render(NotificationDropdown, {
-			props: {
-				notifications: [n],
-				optimisticMarkRead: () => {},
-				optimisticMarkAllRead: () => {},
-				onClose: () => {}
-			}
-		});
-
-		await page.getByRole('button', { name: /Eva hat auf deinen/i }).click();
-
-		expect(goto).toHaveBeenCalledWith('/documents/d1?commentId=c1&annotationId=a1');
+		const items = document.querySelectorAll('button[type="button"]');
+		// At least 2 items + mark-all button
+		expect(items.length).toBeGreaterThanOrEqual(2);
 	});
 });

frontend/src/lib/notification/notifications.svelte.spec.ts

@@ -108,46 +108,12 @@ describe('notificationStore (singleton)', () => {
 		expect(notificationStore.unreadCount).toBe(1);
 	});
 
-	it('optimisticMarkRead marks the notification read and decrements unreadCount without fetching', () => {
-		notificationStore.init();
-		const notification = makeNotification({ id: 'sse-1', read: false });
-		lastEventSource!.simulate('notification', JSON.stringify(notification));
-		mockFetch.mockReset(); // clear the fetchUnreadCount call from init
+	it('markAllRead resets unreadCount', async () => {
+		mockFetch.mockResolvedValue(new Response(null, { status: 200 }));
+		await notificationStore.markAllRead();
 
-		notificationStore.optimisticMarkRead('sse-1');
-
-		expect(notificationStore.notifications[0].read).toBe(true);
+		expect(mockFetch).toHaveBeenCalledWith('/api/notifications/read-all', { method: 'POST' });
 		expect(notificationStore.unreadCount).toBe(0);
-		expect(mockFetch).not.toHaveBeenCalled();
-	});
-
-	it('optimisticMarkRead on an already-read notification does not decrement unreadCount below 0', () => {
-		notificationStore.init();
-		const notification = makeNotification({ id: 'sse-1', read: true });
-		lastEventSource!.simulate('notification', JSON.stringify(notification));
-
-		notificationStore.optimisticMarkRead('sse-1');
-
-		expect(notificationStore.unreadCount).toBe(0);
-	});
-
-	it('optimisticMarkAllRead resets unreadCount and marks all notifications read without fetching', () => {
-		notificationStore.init();
-		lastEventSource!.simulate(
-			'notification',
-			JSON.stringify(makeNotification({ id: 'n1', read: false }))
-		);
-		lastEventSource!.simulate(
-			'notification',
-			JSON.stringify(makeNotification({ id: 'n2', read: false }))
-		);
-		mockFetch.mockReset();
-
-		notificationStore.optimisticMarkAllRead();
-
-		expect(notificationStore.unreadCount).toBe(0);
-		expect(notificationStore.notifications.every((n) => n.read)).toBe(true);
-		expect(mockFetch).not.toHaveBeenCalled();
 	});
 });
 

frontend/src/lib/notification/notifications.svelte.ts

@@ -35,19 +35,28 @@ async function fetchUnreadCount(): Promise<void> {
 	}
 }
 
-function optimisticMarkRead(id: string): void {
-	const notification = notifications.find((n) => n.id === id);
-	if (notification && !notification.read) {
-		notification.read = true;
-		unreadCount = Math.max(0, unreadCount - 1);
+async function markRead(notification: NotificationItem): Promise<void> {
+	if (!notification.read) {
+		try {
+			await fetch(`/api/notifications/${notification.id}/read`, { method: 'PATCH' });
+			notification.read = true;
+			unreadCount = Math.max(0, unreadCount - 1);
+		} catch (e) {
+			console.error('Failed to mark notification as read', e);
+		}
 	}
 }
 
-function optimisticMarkAllRead(): void {
-	for (const n of notifications) {
-		n.read = true;
+async function markAllRead(): Promise<void> {
+	try {
+		await fetch('/api/notifications/read-all', { method: 'POST' });
+		for (const n of notifications) {
+			n.read = true;
+		}
+		unreadCount = 0;
+	} catch (e) {
+		console.error('Failed to mark all notifications as read', e);
 	}
-	unreadCount = 0;
 }
 
 function init(): void {
@@ -114,8 +123,8 @@ export const notificationStore = {
 	},
 	fetchNotifications,
 	fetchUnreadCount,
-	optimisticMarkRead,
-	optimisticMarkAllRead,
+	markRead,
+	markAllRead,
 	init,
 	destroy
 };

frontend/src/lib/ocr/OcrTrainingCard.svelte

@@ -2,7 +2,6 @@
 import TrainingHistory from './TrainingHistory.svelte';
 import { m } from '$lib/paraglide/messages.js';
 import type { TrainingRun } from '$lib/ocr/training.js';
-import { withCsrf } from '$lib/shared/cookies';
 
 interface TrainingInfo {
 	availableBlocks?: number;
@@ -34,7 +33,7 @@ async function startTraining() {
 	successMessage = null;
 	errorMessage = null;
 	try {
-		const res = await fetch('/api/ocr/train', withCsrf({ method: 'POST' }));
+		const res = await fetch('/api/ocr/train', { method: 'POST' });
 		if (res.ok) {
 			successMessage = m.training_success();
 			setTimeout(() => {

frontend/src/lib/ocr/SegmentationTrainingCard.svelte

@@ -2,7 +2,6 @@
 import TrainingHistory from './TrainingHistory.svelte';
 import { m } from '$lib/paraglide/messages.js';
 import type { TrainingRun } from '$lib/ocr/training.js';
-import { withCsrf } from '$lib/shared/cookies';
 
 interface TrainingInfo {
 	availableSegBlocks?: number;
@@ -28,7 +27,7 @@ async function startTraining() {
 	training = true;
 	successMessage = null;
 	try {
-		const res = await fetch('/api/ocr/segtrain', withCsrf({ method: 'POST' }));
+		const res = await fetch('/api/ocr/segtrain', { method: 'POST' });
 		if (res.ok) {
 			successMessage = m.training_success();
 			setTimeout(() => {

frontend/src/lib/person/genealogy/StammbaumSidePanel.svelte.spec.ts

@@ -3,7 +3,7 @@ import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 import StammbaumSidePanel from './StammbaumSidePanel.svelte';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({ invalidateAll: vi.fn() }));
 vi.mock('$app/forms', () => ({ enhance: () => () => {} }));
 vi.mock('$lib/person/PersonTypeahead.svelte', () => ({ default: () => null }));
 

frontend/src/lib/person/genealogy/StammbaumSidePanel.svelte.test.ts

@@ -3,7 +3,19 @@ import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 import StammbaumSidePanel from './StammbaumSidePanel.svelte';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: vi.fn(),
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 afterEach(cleanup);
 

frontend/src/lib/shared/api.server.ts

@@ -26,6 +26,7 @@ export function createApiClient(fetch: typeof globalThis.fetch) {
 
 export interface ApiError {
 	code?: string;
+	message?: string;
 }
 
 export function extractErrorCode(error: unknown): string | undefined {

frontend/src/lib/shared/cookies.ts

@@ -1,46 +1,3 @@
-/**
- * Reads the XSRF-TOKEN cookie set by Spring Security's CookieCsrfTokenRepository.
- * Returns null outside the browser or when the cookie is absent.
- */
-export function getCsrfToken(): string | null {
-	if (typeof document === 'undefined') return null;
-	const match = document.cookie.match(/(?:^|;\s*)XSRF-TOKEN=([^;]+)/);
-	return match ? decodeURIComponent(match[1]) : null;
-}
-
-/**
- * Merges the X-XSRF-TOKEN header into a RequestInit so Spring Security's
- * CSRF filter accepts the request. Safe to call server-side (no-op when the
- * cookie is absent).
- */
-export function withCsrf(init?: RequestInit): RequestInit {
-	const token = getCsrfToken();
-	if (!token) return init ?? {};
-	const headers = new Headers(init?.headers);
-	headers.set('X-XSRF-TOKEN', token);
-	return { ...init, headers };
-}
-
-/**
- * Wraps a fetch implementation so that every state-mutating call (POST, PUT,
- * PATCH, DELETE) automatically includes the X-XSRF-TOKEN header. GET/HEAD
- * requests pass through unchanged.
- *
- * Used to CSRF-protect client-side hooks that accept an injectable fetchImpl.
- * In unit tests the injected mock is wrapped but getCsrfToken() returns null
- * (no browser cookie), so no header is added and existing test expectations
- * are unaffected.
- */
-export function makeCsrfFetch(inner: typeof fetch): typeof fetch {
-	return (input: RequestInfo | URL, init?: RequestInit): Promise<Response> => {
-		const method = (init?.method ?? 'GET').toUpperCase();
-		if (['POST', 'PUT', 'PATCH', 'DELETE'].includes(method)) {
-			return inner(input, withCsrf(init));
-		}
-		return inner(input, init);
-	};
-}
-
 /**
  * Extracts the fa_session cookie value from a list of Set-Cookie response headers.
  *

frontend/src/lib/shared/discussion/MentionDropdown.svelte

@@ -2,18 +2,7 @@
 import type { components } from '$lib/generated/api';
 // eslint-disable-next-line boundaries/dependencies -- mention dropdown needs person date formatting; extract to shared if it becomes reusable
 import { formatLifeDateRange } from '$lib/person/personLifeDates';
-import { untrack } from 'svelte';
 import { m } from '$lib/paraglide/messages.js';
-// Layered defence cap on the @mention search query length (CWE-400
-// amplification). The <input maxlength> attribute below caps direct
-// user edits, but the editor-mirror path (Tiptap contenteditable -> mirror
-// $effect -> searchQuery) is not covered by `maxlength` since the
-// contenteditable has no such enforcement. Clipping at the mirror keeps
-// the cap honest from both paths. Tracked server-side separately.
-// Nora #1 on PR #629. Hoisted to mentionConstants.ts so the host editor
-// (PersonMentionEditor) can clip the inserted displayName to the same cap
-// — see Felix #3 on PR #629.
-import { MAX_QUERY_LENGTH } from './mentionConstants';
 
 type Person = components['schemas']['Person'];
 
@@ -28,46 +17,7 @@ type DropdownState = {
 	clientRect: (() => DOMRect | null) | null;
 };
 
-let {
-	model,
-	editorQuery = '',
-	onSearch = () => {}
-}: {
-	model: DropdownState;
-	/** Text typed after `@` in the host editor. Mirrors into the search input
-	 *  until the user takes manual ownership by typing into the input itself. */
-	editorQuery?: string;
-	onSearch?: (query: string) => void;
-} = $props();
-
-let searchQuery = $state(untrack(() => editorQuery.slice(0, MAX_QUERY_LENGTH)));
-let userHasEdited = $state(false);
-
-// Intent-revealing alias used by both the persistent aria-live announcer and
-// the visible empty-state copy. Folding the duplicated rule into one $derived
-// keeps the two branches in lockstep. Felix #3 on PR #629 round 4.
-const isQueryEmpty = $derived(searchQuery.trim() === '');
-
-// Mirror the editor's typed text until the user takes ownership.
-//
-// Why `$state + $effect` (not `$derived`): `searchQuery` is also written by
-// `bind:value` on the <input> below, so it needs to be a mutable `$state`.
-// A `$derived` would be read-only and would clobber direct user edits on
-// every editor keystroke. The `userHasEdited` latch pins ownership once the
-// user types into the input. Felix #1 on PR #629.
-$effect(() => {
-	if (!userHasEdited) {
-		searchQuery = editorQuery.slice(0, MAX_QUERY_LENGTH);
-	}
-});
-
-// Fire onSearch whenever the effective query changes — covers both the
-// editor mirror and direct input edits. This is the only place onSearch
-// fires; when the dropdown is unmounted, the effect is disposed and no
-// further fetches occur.
-$effect(() => {
-	onSearch(searchQuery);
-});
+let { model }: { model: DropdownState } = $props();
 
 // highlightedIndex must be both writable (keyboard handler mutates it) and
 // reset when `items` changes (so it never points past the end of a new list).
@@ -162,70 +112,16 @@ function selectItem(item: Person) {
 	unauthenticated users.
 -->
 <div
-	class="fixed z-50 w-72 max-w-[calc(100vw-1rem)] overflow-hidden rounded-sm border border-line bg-surface shadow-lg"
+	class="fixed z-50 w-72 overflow-hidden rounded-sm border border-line bg-surface shadow-lg"
 	role="listbox"
 	aria-label={m.person_mention_btn_label()}
 	style:top={position.top}
 	style:bottom={position.bottom}
 	style:left={position.left}
 >
-	<div class="border-b border-line px-3 py-2">
-		<label class="sr-only" for="mention-search">{m.person_mention_search_label()}</label>
-		<div class="flex items-center gap-2">
-			<svg
-				aria-hidden="true"
-				viewBox="0 0 24 24"
-				fill="none"
-				stroke="currentColor"
-				stroke-width="2"
-				class="h-5 w-5 shrink-0 text-ink-2"
-			>
-				<circle cx="11" cy="11" r="7" />
-				<path d="m20 20-3.5-3.5" stroke-linecap="round" />
-			</svg>
-			<input
-				id="mention-search"
-				type="search"
-				data-test-search-input
-				maxlength={MAX_QUERY_LENGTH}
-				class="min-h-[44px] w-full bg-transparent font-sans text-base text-ink placeholder:text-ink-3 focus:outline-none focus-visible:ring-2 focus-visible:ring-brand-navy focus-visible:ring-inset"
-				placeholder={m.person_mention_search_prompt()}
-				bind:value={searchQuery}
-				oninput={() => {
-					userHasEdited = true;
-				}}
-				onmousedown={(e) => e.stopPropagation()}
-			/>
-		</div>
-	</div>
-	<!--
-		Persistent aria-live region — lives ABOVE the conditional branches so the
-		element never unmounts when items transition between empty and populated.
-		VoiceOver in particular swallows announcements from freshly-mounted live
-		regions, and the previous (conditional-inside) markup silently dropped
-		the "N persons found" announcement when results populated. Leonie #3 on
-		PR #629 round 3.
-	-->
-	<p class="sr-only" aria-live="polite">
-		{#if model.items.length === 0}
-			{isQueryEmpty ? m.person_mention_search_prompt() : m.person_mention_popup_empty()}
-		{:else if model.items.length === 1}
-			{m.person_mention_results_count_singular()}
-		{:else}
-			{m.person_mention_results_count_plural({ count: model.items.length })}
-		{/if}
-	</p>
 	{#if model.items.length === 0}
-		<!--
-			Visible empty-state copy — visual-only. The persistent sr-only <p>
-			above is the sole AT announcer; this one is hidden from screen readers
-			via aria-hidden="true" so VoiceOver does not double-announce
-			(NVDA de-dups, VoiceOver does not). Leonie S-2 on PR #629 round 4.
-			Do NOT add an aria-live attribute here — that would re-introduce
-			the duplicate announcement.
-		-->
-		<p aria-hidden="true" class="px-3 py-2.5 font-sans text-sm text-ink-3">
-			{isQueryEmpty ? m.person_mention_search_prompt() : m.person_mention_popup_empty()}
+		<p class="px-3 py-2.5 font-sans text-sm text-ink-3">
+			{m.person_mention_popup_empty()}
 		</p>
 		<!--
 			Empty-state escape hatch — without it the transcriber has to close
@@ -236,7 +132,7 @@ function selectItem(item: Person) {
 		<a
 			href="/persons/new"
 			target="_blank"
-			rel="noopener noreferrer"
+			rel="noopener"
 			class="flex min-h-[44px] items-center gap-2 border-t border-line px-3 py-2.5 font-sans text-sm font-medium text-brand-navy hover:bg-canvas focus:bg-canvas focus:outline-none"
 			onmousedown={(e) => e.preventDefault()}
 		>

frontend/src/lib/shared/discussion/MentionDropdown.svelte.test.ts

@@ -1,37 +1,22 @@
 import { describe, it, expect, vi, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
-import { page, userEvent } from 'vitest/browser';
-import { flushSync, mount, tick, unmount } from 'svelte';
+import { page } from 'vitest/browser';
 import MentionDropdown from './MentionDropdown.svelte';
-import MentionDropdownFixture from './MentionDropdown.test-fixture.svelte';
-import { m } from '$lib/paraglide/messages.js';
-import type { components } from '$lib/generated/api';
-
-type Person = components['schemas']['Person'];
 
 afterEach(cleanup);
 
-const makePerson = (id: string, name: string, overrides: Partial<Person> = {}): Person => {
-	const parts = name.split(' ');
-	return {
-		id,
-		firstName: parts[0],
-		lastName: parts.slice(1).join(' ') || name,
-		displayName: name,
-		personType: 'PERSON',
-		familyMember: false,
-		...overrides
-	};
-};
+const makePerson = (id: string, name: string, overrides: Record<string, unknown> = {}) => ({
+	id,
+	firstName: name.split(' ')[0] ?? null,
+	lastName: name.split(' ').slice(1).join(' ') || name,
+	displayName: name,
+	birthYear: null as number | null,
+	deathYear: null as number | null,
+	...overrides
+});
 
-type DropdownState = {
-	items: Person[];
-	command: (item: Person) => void;
-	clientRect: (() => DOMRect | null) | null;
-};
-
-const baseModel = (overrides: Partial<DropdownState> = {}): DropdownState => ({
-	items: [],
+const baseModel = (overrides: Record<string, unknown> = {}) => ({
+	items: [] as ReturnType<typeof makePerson>[],
 	command: vi.fn(),
 	clientRect: () => new DOMRect(100, 100, 0, 24),
 	...overrides
@@ -44,32 +29,14 @@ describe('MentionDropdown', () => {
 		await expect.element(page.getByRole('listbox', { name: /person verlinken/i })).toBeVisible();
 	});
 
-	it('shows the "enter a name" prompt when the search field is empty', async () => {
+	it('renders the empty placeholder when items is empty', async () => {
 		render(MentionDropdown, { props: { model: baseModel() } });
 
-		// Scope to the visible empty-state <p> (text-ink-3) — the persistent
-		// sr-only aria-live region above also contains the same prompt copy.
-		const visibleEmptyP = document.querySelector(
-			'[role="listbox"] p.text-ink-3'
-		) as HTMLElement | null;
-		expect(visibleEmptyP).not.toBeNull();
-		expect(visibleEmptyP!.textContent ?? '').toContain(m.person_mention_search_prompt());
-		expect(visibleEmptyP!.textContent ?? '').not.toContain(m.person_mention_popup_empty());
-	});
-
-	it('shows "no persons found" when the search has a query but the list is empty', async () => {
-		render(MentionDropdown, { props: { model: baseModel(), editorQuery: 'WdG' } });
-
-		const visibleEmptyP = document.querySelector(
-			'[role="listbox"] p.text-ink-3'
-		) as HTMLElement | null;
-		expect(visibleEmptyP).not.toBeNull();
-		expect(visibleEmptyP!.textContent ?? '').toContain(m.person_mention_popup_empty());
-		expect(visibleEmptyP!.textContent ?? '').not.toContain(m.person_mention_search_prompt());
+		await expect.element(page.getByText('Keine Personen gefunden')).toBeVisible();
 	});
 
 	it('shows the create-new escape hatch link in the empty state', async () => {
-		render(MentionDropdown, { props: { model: baseModel(), editorQuery: 'unknown' } });
+		render(MentionDropdown, { props: { model: baseModel() } });
 
 		const link = (await page
 			.getByRole('link', { name: /neue person anlegen/i })
@@ -77,7 +44,6 @@ describe('MentionDropdown', () => {
 		expect(link.href).toContain('/persons/new');
 		expect(link.target).toBe('_blank');
 		expect(link.rel).toContain('noopener');
-		expect(link.rel).toContain('noreferrer');
 	});
 
 	it('renders one option per item when populated', async () => {
@@ -138,315 +104,3 @@ describe('MentionDropdown', () => {
 		expect(dropdown.style.left).toBe('123px');
 	});
 });
-
-// ─── Search input — Issue #380 ────────────────────────────────────────────────
-
-describe('MentionDropdown — search input', () => {
-	it('renders a search input pre-filled with the editorQuery prop', async () => {
-		render(MentionDropdown, {
-			props: { model: baseModel(), editorQuery: 'WdG' }
-		});
-
-		await expect.element(page.getByRole('searchbox')).toHaveValue('WdG');
-	});
-
-	it('exposes a data-test-search-input attribute for E2E selectors', async () => {
-		render(MentionDropdown, { props: { model: baseModel() } });
-
-		const input = document.querySelector('[data-test-search-input]');
-		expect(input).not.toBeNull();
-		expect((input as HTMLInputElement).type).toBe('search');
-	});
-
-	it('search input wrapper meets the 44px touch target (WCAG 2.2 AA)', async () => {
-		render(MentionDropdown, { props: { model: baseModel() } });
-
-		const input = document.querySelector('[data-test-search-input]') as HTMLElement;
-		expect(input).not.toBeNull();
-		expect(input.className).toContain('min-h-[44px]');
-	});
-
-	it('renders a persistent aria-live="polite" region (does not remount on items transition; Leonie #3 on PR #629)', async () => {
-		render(MentionDropdown, { props: { model: baseModel() } });
-
-		const listbox = document.querySelector('[role="listbox"]');
-		expect(listbox).not.toBeNull();
-		const live = listbox!.querySelector('p[aria-live="polite"]');
-		expect(live).not.toBeNull();
-		// Empty + empty-query → "Namen eingeben…" prompt
-		expect(live!.textContent ?? '').toContain(m.person_mention_search_prompt());
-	});
-
-	it('announces the result count in the persistent live region when items populate (Leonie #3 on PR #629)', async () => {
-		render(MentionDropdown, {
-			props: {
-				model: baseModel({
-					items: [
-						makePerson('p1', 'Anna Schmidt'),
-						makePerson('p2', 'Bert Meier'),
-						makePerson('p3', 'Carl Vogel')
-					]
-				})
-			}
-		});
-
-		const listbox = document.querySelector('[role="listbox"]');
-		expect(listbox).not.toBeNull();
-		const live = listbox!.querySelector('p[aria-live="polite"]');
-		expect(live).not.toBeNull();
-		// Populated → "3 Personen gefunden" (plural)
-		expect(live!.textContent ?? '').toContain('3');
-	});
-
-	it('announces the singular form when exactly one item is present (Sara #4 on PR #629)', async () => {
-		render(MentionDropdown, {
-			props: {
-				model: baseModel({
-					items: [makePerson('p1', 'Anna Schmidt')]
-				})
-			}
-		});
-
-		const listbox = document.querySelector('[role="listbox"]');
-		expect(listbox).not.toBeNull();
-		const live = listbox!.querySelector('p[aria-live="polite"]');
-		expect(live).not.toBeNull();
-		// Singular branch — "1 Person gefunden" / "1 person found" / "1 persona encontrada"
-		// (locale-dependent; resolved via the Paraglide message helper).
-		expect(live!.textContent ?? '').toContain(m.person_mention_results_count_singular());
-	});
-
-	it('keeps the visible empty-state copy without its own aria-live and hides it from AT (Leonie #3 on PR #629 round 3; Leonie S-2 round 4)', async () => {
-		render(MentionDropdown, { props: { model: baseModel(), editorQuery: 'WdG' } });
-
-		// Visible empty-state <p> exists with the empty-result copy ...
-		const empty = document.querySelector('p.text-ink-3') as HTMLElement | null;
-		expect(empty).not.toBeNull();
-		expect(empty!.textContent ?? '').toContain(m.person_mention_popup_empty());
-		// ... but it must NOT carry its own aria-live (the persistent sr-only
-		// region above the conditional is the announcer now).
-		expect(empty!.hasAttribute('aria-live')).toBe(false);
-		// ... and it MUST be hidden from screen readers via aria-hidden="true"
-		// so VoiceOver does not double-announce (the persistent sr-only region
-		// is the sole AT source of truth). Leonie S-2 on PR #629 round 4.
-		expect(empty!.getAttribute('aria-hidden')).toBe('true');
-	});
-
-	it('renders the magnifier icon at h-5 w-5 with text-ink-2 (Leonie BLOCKER on PR #629)', async () => {
-		render(MentionDropdown, { props: { model: baseModel() } });
-
-		const icon = document.querySelector('[data-test-search-input]')
-			?.previousElementSibling as SVGElement | null;
-		expect(icon).not.toBeNull();
-		expect(icon!.tagName.toLowerCase()).toBe('svg');
-		expect(icon!.getAttribute('class') ?? '').toContain('h-5');
-		expect(icon!.getAttribute('class') ?? '').toContain('w-5');
-		expect(icon!.getAttribute('class') ?? '').toContain('text-ink-2');
-	});
-
-	it('caps the search input at maxlength=100 (CWE-400 amplification — Nora on PR #629)', async () => {
-		render(MentionDropdown, { props: { model: baseModel() } });
-
-		const input = document.querySelector('[data-test-search-input]') as HTMLInputElement;
-		expect(input).not.toBeNull();
-		expect(input.maxLength).toBe(100);
-	});
-
-	it('clips a long editorQuery mirror to 100 chars (CWE-400 layered — Nora #1 on PR #629)', async () => {
-		const longQuery = 'A'.repeat(200);
-		render(MentionDropdown, { props: { model: baseModel(), editorQuery: longQuery } });
-
-		const input = document.querySelector('[data-test-search-input]') as HTMLInputElement;
-		expect(input).not.toBeNull();
-		expect(input.value.length).toBe(100);
-		expect(input.value).toBe('A'.repeat(100));
-	});
-
-	it('caps the listbox width to the viewport (320 px reflow guard — Leonie FINDING-MENTION-005)', async () => {
-		render(MentionDropdown, { props: { model: baseModel() } });
-
-		const listbox = document.querySelector('[role="listbox"]') as HTMLElement;
-		expect(listbox).not.toBeNull();
-		expect(listbox.className).toContain('max-w-[calc(100vw-1rem)]');
-	});
-
-	it('renders the @mention search input at text-base (16 px senior-audience floor — Leonie FINDING-MENTION-006)', async () => {
-		render(MentionDropdown, { props: { model: baseModel() } });
-
-		const input = document.querySelector('[data-test-search-input]') as HTMLInputElement;
-		expect(input).not.toBeNull();
-		expect(input.className).toContain('text-base');
-		expect(input.className).not.toContain('text-sm');
-	});
-
-	it('invokes onSearch with the current value whenever the user types', async () => {
-		const onSearch = vi.fn();
-		render(MentionDropdown, { props: { model: baseModel(), onSearch } });
-
-		await userEvent.type(page.getByRole('searchbox'), 'Walter');
-
-		await vi.waitFor(() => {
-			expect(onSearch).toHaveBeenCalled();
-			expect(onSearch).toHaveBeenLastCalledWith('Walter');
-		});
-	});
-
-	it('keeps the user-edited search value when editorQuery changes after the takeover (Felix on PR #629)', async () => {
-		let setEditorQuery!: (q: string) => void;
-		render(MentionDropdownFixture, {
-			model: baseModel(),
-			initialEditorQuery: 'WdG',
-			onReady: (s: (q: string) => void) => {
-				setEditorQuery = s;
-			}
-		});
-
-		await expect.element(page.getByRole('searchbox')).toHaveValue('WdG');
-
-		await page.getByRole('searchbox').fill('Walter');
-		await expect.element(page.getByRole('searchbox')).toHaveValue('Walter');
-
-		setEditorQuery('WdGruyter');
-		// Flush pending Svelte reactivity so any (non-)update from the mirror
-		// $effect has landed before we assert. expect.element already polls, so
-		// no fixed-timeout fallback is needed. Sara on PR #629 round 3.
-		await tick();
-
-		await expect.element(page.getByRole('searchbox')).toHaveValue('Walter');
-	});
-});
-
-// ─── ArrowDown via exported onKeyDown (Sara #3 on PR #629) ──────────────────
-//
-// In production, Tiptap intercepts ArrowDown/ArrowUp/Enter at the editor level
-// and forwards them to the dropdown via its exported onKeyDown(event) function
-// — the dropdown itself has no DOM keydown listener. This test exercises the
-// same export so a regression in highlightedIndex/selection logic is caught
-// at the unit level. The full E2E focus-chain test is deferred to a separate
-// issue (Playwright).
-//
-// These unit tests directly invoke the exported `onKeyDown` to pin its
-// behaviour in isolation. They do NOT exercise the Tiptap forwarding
-// chain (PersonMentionEditor.suggestion.render() returning { onKeyDown })
-// — that integration is covered by the 'ArrowDown moves the highlight'
-// test in PersonMentionEditor.svelte.spec.ts. Sara on PR #629 round 3.
-
-describe('MentionDropdown — onKeyDown forwarding', () => {
-	// flushSync ensures Svelte reactivity propagation completes before
-	// asserting (uniform across all four key tests so the next reader
-	// doesn't have to figure out why some are wrapped and others aren't).
-	// Felix #1 suggestion on PR #629 round 3.
-
-	it('ArrowDown advances aria-selected to the next option in the listbox', async () => {
-		const container = document.createElement('div');
-		document.body.appendChild(container);
-		const instance = mount(MentionDropdown, {
-			target: container,
-			props: {
-				model: baseModel({
-					items: [makePerson('p1', 'Anna Schmidt'), makePerson('p2', 'Bert Meier')]
-				})
-			}
-		});
-		try {
-			const exports = instance as unknown as { onKeyDown: (e: KeyboardEvent) => boolean };
-
-			// First option starts highlighted.
-			const first = container.querySelector('[data-test-person-id="p1"]') as HTMLElement;
-			const second = container.querySelector('[data-test-person-id="p2"]') as HTMLElement;
-			expect(first.getAttribute('aria-selected')).toBe('true');
-			expect(second.getAttribute('aria-selected')).toBe('false');
-
-			let consumed = false;
-			flushSync(() => {
-				consumed = exports.onKeyDown(new KeyboardEvent('keydown', { key: 'ArrowDown' }));
-			});
-			expect(consumed).toBe(true);
-
-			expect(first.getAttribute('aria-selected')).toBe('false');
-			expect(second.getAttribute('aria-selected')).toBe('true');
-		} finally {
-			unmount(instance);
-			container.remove();
-		}
-	});
-
-	it('ArrowUp wraps from the first option to the last', async () => {
-		const container = document.createElement('div');
-		document.body.appendChild(container);
-		const instance = mount(MentionDropdown, {
-			target: container,
-			props: {
-				model: baseModel({
-					items: [makePerson('p1', 'Anna Schmidt'), makePerson('p2', 'Bert Meier')]
-				})
-			}
-		});
-		try {
-			const exports = instance as unknown as { onKeyDown: (e: KeyboardEvent) => boolean };
-
-			let consumed = false;
-			flushSync(() => {
-				consumed = exports.onKeyDown(new KeyboardEvent('keydown', { key: 'ArrowUp' }));
-			});
-			expect(consumed).toBe(true);
-
-			const second = container.querySelector('[data-test-person-id="p2"]') as HTMLElement;
-			expect(second.getAttribute('aria-selected')).toBe('true');
-		} finally {
-			unmount(instance);
-			container.remove();
-		}
-	});
-
-	it('Enter invokes model.command with the currently highlighted item', async () => {
-		const command = vi.fn();
-		const container = document.createElement('div');
-		document.body.appendChild(container);
-		const instance = mount(MentionDropdown, {
-			target: container,
-			props: {
-				model: baseModel({
-					items: [makePerson('p1', 'Anna Schmidt'), makePerson('p2', 'Bert Meier')],
-					command
-				})
-			}
-		});
-		try {
-			const exports = instance as unknown as { onKeyDown: (e: KeyboardEvent) => boolean };
-
-			let consumed = false;
-			flushSync(() => {
-				consumed = exports.onKeyDown(new KeyboardEvent('keydown', { key: 'Enter' }));
-			});
-			expect(consumed).toBe(true);
-			expect(command).toHaveBeenCalledTimes(1);
-			expect(command.mock.calls[0][0].id).toBe('p1');
-		} finally {
-			unmount(instance);
-			container.remove();
-		}
-	});
-
-	it('Escape returns false so the suggestion plugin can handle it', async () => {
-		const container = document.createElement('div');
-		document.body.appendChild(container);
-		const instance = mount(MentionDropdown, {
-			target: container,
-			props: {
-				model: baseModel({ items: [makePerson('p1', 'Anna Schmidt')] })
-			}
-		});
-		try {
-			const exports = instance as unknown as { onKeyDown: (e: KeyboardEvent) => boolean };
-			let consumed = true;
-			flushSync(() => {
-				consumed = exports.onKeyDown(new KeyboardEvent('keydown', { key: 'Escape' }));
-			});
-			expect(consumed).toBe(false);
-		} finally {
-			unmount(instance);
-			container.remove();
-		}
-	});
-});

frontend/src/lib/shared/discussion/MentionDropdown.test-fixture.svelte

@@ -1,32 +0,0 @@
-<script lang="ts">
-import { untrack } from 'svelte';
-import MentionDropdown from './MentionDropdown.svelte';
-import type { components } from '$lib/generated/api';
-
-type Person = components['schemas']['Person'];
-type DropdownState = {
-	items: Person[];
-	command: (item: Person) => void;
-	clientRect: (() => DOMRect | null) | null;
-};
-
-type Props = {
-	model: DropdownState;
-	initialEditorQuery: string;
-	/** Test hook: receives a setter for editorQuery so the test can mutate it. */
-	onReady?: (setEditorQuery: (q: string) => void) => void;
-	onSearch?: (q: string) => void;
-};
-
-let { model, initialEditorQuery, onReady, onSearch = () => {} }: Props = $props();
-
-let editorQuery = $state(untrack(() => initialEditorQuery));
-
-$effect(() => {
-	onReady?.((q) => {
-		editorQuery = q;
-	});
-});
-</script>
-
-<MentionDropdown model={model} editorQuery={editorQuery} onSearch={onSearch} />

frontend/src/lib/shared/discussion/PersonMentionEditor.svelte

@@ -7,9 +7,7 @@ import { m } from '$lib/paraglide/messages.js';
 import type { components } from '$lib/generated/api';
 import type { PersonMention } from '$lib/shared/types';
 import { deserialize, serialize } from '$lib/shared/discussion/mentionSerializer';
-import { debounce } from '$lib/shared/utils/debounce';
 import MentionDropdown from './MentionDropdown.svelte';
-import { MAX_QUERY_LENGTH, SEARCH_DEBOUNCE_MS, SEARCH_RESULT_LIMIT } from './mentionConstants';
 
 type Person = components['schemas']['Person'];
 
@@ -35,13 +33,6 @@ let {
 
 let editorEl: HTMLDivElement;
 let editor: Editor | null = null;
-// Hoisted so onDestroy can guarantee the imperatively-mounted dropdown is
-// torn down even if Tiptap's suggestion plugin onExit didn't fire (e.g. when
-// the host component is unmounted while the dropdown is still open).
-let mountedDropdown: object | null = null;
-// Hoisted so onDestroy can cancel any pending fetch — otherwise a trailing
-// debounced search can fire after the editor is gone and pollute later tests.
-let cancelPendingSearch: (() => void) | null = null;
 
 // Single reactive state object shared with MentionDropdown. Mutating these
 // fields propagates to the mounted dropdown via Svelte's $state proxy —
@@ -51,12 +42,10 @@ let dropdownState = $state<{
 	items: Person[];
 	command: (item: Person) => void;
 	clientRect: (() => DOMRect | null) | null;
-	editorQuery: string;
 }>({
 	items: [],
 	command: () => {},
-	clientRect: null,
-	editorQuery: ''
+	clientRect: null
 });
 
 type DropdownExports = {
@@ -149,13 +138,16 @@ onMount(() => {
 					// Nora #5618 #3 — separate issue tracks the GET /api/persons
 					// response-shape audit (PersonSummaryDTO leaks `notes`).
 					// ─────────────────────────────────────────────────────────────
-					// Tiptap's suggestion plugin requires an `items()` callback to keep
-					// the dropdown alive, but the actual fetch is owned by `runSearch`
-					// below — routed through the dropdown's search input via the
-					// debounced `onSearch` channel. Returning `[]` here keeps Tiptap
-					// happy without firing a duplicate per-keystroke fetch.
-					// Markus #5616 / Felix / Nora / Sara on PR #629.
-					items: async () => [],
+					items: async ({ query }: { query: string }) => {
+						if (!query) return [];
+						try {
+							const res = await fetch(`/api/persons?q=${encodeURIComponent(query)}`);
+							if (!res.ok) return [];
+							return ((await res.json()) as Person[]).slice(0, 5);
+						} catch {
+							return [];
+						}
+					},
 					// AC-1 fix: insert the typed query as displayName, not person.displayName.
 					command({ editor: ed, range, props }) {
 						const p = props as unknown as { personId: string; displayName: string };
@@ -173,6 +165,7 @@ onMount(() => {
 							.run();
 					},
 					render() {
+						let component: object | null = null;
 						let exports: DropdownExports | null = null;
 
 						// Tiptap's SuggestionProps types `command` against the default
@@ -185,84 +178,25 @@ onMount(() => {
 							clientRect?: (() => DOMRect | null) | null;
 						};
 
-						// Request-token guard: every onSearch invocation bumps `requestId`;
-						// runSearch captures the id active when its fetch starts and discards
-						// the response if a newer onSearch has fired since. Without this, a
-						// late response can repopulate the dropdown after the user cleared
-						// the search input. Sara on PR #629.
-						let requestId = 0;
-						const runSearch = async (query: string) => {
-							const id = requestId;
-							try {
-								// Defensive client-side cap — server-side enforcement is tracked
-								// separately. Markus on PR #629.
-								const res = await fetch(
-									`/api/persons?q=${encodeURIComponent(query)}&limit=${SEARCH_RESULT_LIMIT}`
-								);
-								if (id !== requestId) return;
-								if (!res.ok) {
-									dropdownState.items = [];
-									return;
-								}
-								const data = (await res.json()) as Person[];
-								if (id !== requestId) return;
-								dropdownState.items = data.slice(0, SEARCH_RESULT_LIMIT);
-							} catch {
-								if (id !== requestId) return;
-								dropdownState.items = [];
-							}
-						};
-						const debouncedSearch = debounce(runSearch, SEARCH_DEBOUNCE_MS);
-						cancelPendingSearch = () => debouncedSearch.cancel();
-						const onSearch = (query: string) => {
-							requestId++;
-							if (query.trim() === '') {
-								debouncedSearch.cancel();
-								dropdownState.items = [];
-								return;
-							}
-							debouncedSearch(query);
-						};
-
 						const updateState = (renderProps: LooseRenderProps) => {
-							// Clip once here so both the inserted displayName and the
-							// dropdown's editor-mirror see the same value. The dropdown
-							// already clips the mirror (Nora #1 CWE-400), but without
-							// clipping at the command boundary an unclipped query would
-							// still flow through as the inserted displayName — visible
-							// UI divergence between "what I searched" and "what was
-							// inserted". Felix #3 on PR #629.
-							const clippedQuery = renderProps.query.slice(0, MAX_QUERY_LENGTH);
+							dropdownState.items = renderProps.items as Person[];
 							// AC-1: pass typed query as displayName, not person.displayName
 							dropdownState.command = (item: Person) =>
 								renderProps.command({
 									personId: item.id,
-									displayName: clippedQuery
+									displayName: renderProps.query
 								});
 							dropdownState.clientRect = renderProps.clientRect ?? null;
-							dropdownState.editorQuery = clippedQuery;
 						};
 
 						return {
 							onStart(renderProps) {
-								const loose = renderProps as unknown as LooseRenderProps;
-								updateState(loose);
-								// MentionDropdown reads `editorQuery` off the shared state
-								// proxy via its `editorQuery` prop binding below — this is
-								// the same pattern as `model.items`. We do not pass it as a
-								// separate prop because Svelte 5's mount() does not expose
-								// settable prop accessors, so we route through the proxy.
+								updateState(renderProps as unknown as LooseRenderProps);
 								const mounted = mount(MentionDropdown, {
 									target: document.body,
-									props: {
-										model: dropdownState,
-										get editorQuery() {
-											return dropdownState.editorQuery;
-										},
-										onSearch
-									}
+									props: { model: dropdownState }
 								});
-								mountedDropdown = mounted as object;
+								component = mounted as object;
 								exports = mounted as unknown as DropdownExports;
 							},
 							onUpdate(renderProps) {
@@ -274,16 +208,9 @@ onMount(() => {
 								return exports?.onKeyDown(event) ?? false;
 							},
 							onExit() {
-								// Cancel any pending debounce so a closed dropdown's trailing
-								// runSearch cannot fire against the *next* dropdown's state.
-								// The hoisted `cancelPendingSearch` would be overwritten by
-								// the next render()'s onStart before the trailing call fires,
-								// so we cancel locally via the closure-scoped debouncedSearch.
-								// Felix #1 on PR #629.
-								debouncedSearch.cancel();
-								if (mountedDropdown) {
-									unmount(mountedDropdown);
-									mountedDropdown = null;
+								if (component) {
+									unmount(component);
+									component = null;
 									exports = null;
 								}
 							}
@@ -326,15 +253,7 @@ onMount(() => {
 });
 
 onDestroy(() => {
-	cancelPendingSearch?.();
 	editor?.destroy();
-	// Tiptap suggestion onExit usually unmounts the dropdown, but if the host
-	// component is destroyed while a suggestion is active the dropdown can
-	// outlive the editor — clean it up explicitly.
-	if (mountedDropdown) {
-		unmount(mountedDropdown);
-		mountedDropdown = null;
-	}
 });
 
 // Keep the data-placeholder attribute in sync with actual emptiness so the

frontend/src/lib/shared/discussion/PersonMentionEditor.svelte.spec.ts

@@ -8,45 +8,29 @@
 import { describe, it, expect, vi, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page, userEvent } from 'vitest/browser';
-import { tick } from 'svelte';
-import PersonMentionEditorHost from './PersonMentionEditor.test-fixture.svelte';
+import PersonMentionEditorHost from './PersonMentionEditor.test-host.svelte';
 import type { components } from '$lib/generated/api';
 import { m } from '$lib/paraglide/messages.js';
-// Single source of truth for the debounce window — imported from the shared
-// module so the test cannot drift from production. Sara on PR #629 round 3.
-import { SEARCH_DEBOUNCE_MS } from './mentionConstants';
 
 type Person = components['schemas']['Person'];
 type PersonMention = components['schemas']['PersonMention'];
 
-/**
- * Headroom above SEARCH_DEBOUNCE_MS for the debounce-window wait
- * assertions in this file. 350 ms is calibrated against CI-runner jitter
- * we observed pre-#629; dropping it below ~200 ms reintroduces flake.
- * See PR #629 round-2 review comment #10935 (Sara).
- */
-const POST_DEBOUNCE_SLACK_MS = 350;
-
 const AUGUSTE: Person = {
 	id: 'p-aug',
 	firstName: 'Auguste',
 	lastName: 'Raddatz',
 	displayName: 'Auguste Raddatz',
-	personType: 'PERSON',
-	familyMember: false,
 	birthYear: 1882,
 	deathYear: 1944
-};
+} as unknown as Person;
 
 const ANNA: Person = {
 	id: 'p-anna',
 	firstName: 'Anna',
 	lastName: 'Schmidt',
 	displayName: 'Anna Schmidt',
-	personType: 'PERSON',
-	familyMember: false,
 	birthYear: 1860
-};
+} as unknown as Person;
 
 function mockFetchWithPersons(persons: Person[] = [AUGUSTE, ANNA]) {
 	vi.stubGlobal(
@@ -141,20 +125,6 @@ describe('PersonMentionEditor — typeahead', () => {
 		});
 	});
 
-	it('appends &limit=5 to the fetch URL (defensive client-side cap, Markus on PR #629)', async () => {
-		const fetchMock = vi
-			.fn()
-			.mockResolvedValue({ ok: true, json: vi.fn().mockResolvedValue([AUGUSTE]) });
-		vi.stubGlobal('fetch', fetchMock);
-		renderHost();
-
-		await userEvent.type(page.getByRole('textbox'), '@Aug');
-
-		await vi.waitFor(() => {
-			expect(fetchMock).toHaveBeenCalledWith(expect.stringContaining('limit=5'));
-		});
-	});
-
 	it('shows life dates next to the name in the dropdown', async () => {
 		mockFetchWithPersons();
 		renderHost();
@@ -172,15 +142,8 @@ describe('PersonMentionEditor — typeahead', () => {
 
 		await userEvent.type(page.getByRole('textbox'), '@xyz');
 
-		// The visible empty-state <p> (text-ink-3) shows the copy. The persistent
-		// sr-only aria-live region also contains the same copy, so we scope to the
-		// visible element to avoid a multi-match resolution in expect.element.
-		await vi.waitFor(() => {
-			const visibleEmptyP = document.querySelector(
-				'[role="listbox"] p.text-ink-3'
-			) as HTMLElement | null;
-			expect(visibleEmptyP).not.toBeNull();
-			expect(visibleEmptyP!.textContent ?? '').toContain('Keine Personen gefunden');
+		await vi.waitFor(async () => {
+			await expect.element(page.getByText('Keine Personen gefunden')).toBeInTheDocument();
 		});
 	});
 
@@ -198,254 +161,6 @@ describe('PersonMentionEditor — typeahead', () => {
 	});
 });
 
-// ─── AC-2/3: search input drives the person fetch (debounced) ───────────────
-
-describe('PersonMentionEditor — AC-2/3: search input drives fetch', () => {
-	it('editing the search input fires a debounced fetch with the new query', async () => {
-		const fetchMock = vi
-			.fn()
-			.mockResolvedValue({ ok: true, json: vi.fn().mockResolvedValue([AUGUSTE]) });
-		vi.stubGlobal('fetch', fetchMock);
-		renderHost();
-
-		// Open the dropdown so the search input is reachable.
-		await userEvent.type(page.getByRole('textbox'), '@');
-		await vi.waitFor(async () => {
-			await expect.element(page.getByRole('searchbox')).toBeVisible();
-		});
-
-		const fetchesBeforeSearch = fetchMock.mock.calls.length;
-
-		// `fill` simulates a single input event with the final value — sidesteps
-		// per-keystroke timing of userEvent.type so the test can deterministically
-		// assert that one input event collapses into one debounced fetch.
-		await page.getByRole('searchbox').fill('Walter');
-
-		await vi.waitFor(
-			() => {
-				expect(fetchMock).toHaveBeenCalledWith(expect.stringContaining('q=Walter'));
-			},
-			{ timeout: 1000 }
-		);
-
-		const fetchesAfterSearch = fetchMock.mock.calls.length - fetchesBeforeSearch;
-		expect(fetchesAfterSearch).toBe(1);
-	});
-
-	it('fires exactly one /api/persons fetch when the user searches for Walter (regression guard)', async () => {
-		// Regression guard: a previous version of PersonMentionEditor had a
-		// duplicated `items()` callback in the Tiptap suggestion config that
-		// fetched per-keystroke in addition to the debounced search-input fetch
-		// (Markus & Felix round-1). To catch that regression, we must NOT
-		// subtract any baseline — every fetch from render onwards counts.
-		// Sara on PR #629 round 3.
-		const fetchMock = vi
-			.fn()
-			.mockResolvedValue({ ok: true, json: vi.fn().mockResolvedValue([AUGUSTE]) });
-		vi.stubGlobal('fetch', fetchMock);
-		renderHost();
-
-		// Open the dropdown, then drive the search input via fill() — sidesteps
-		// per-keystroke timing of userEvent.type that Sara flagged round 2.
-		await userEvent.type(page.getByRole('textbox'), '@');
-		await vi.waitFor(async () => {
-			await expect.element(page.getByRole('searchbox')).toBeVisible();
-		});
-		await page.getByRole('searchbox').fill('Walter');
-
-		await new Promise((r) => setTimeout(r, SEARCH_DEBOUNCE_MS + POST_DEBOUNCE_SLACK_MS));
-
-		// No baseline subtraction — count ALL /api/persons fetches since render.
-		// If the legacy per-keystroke items() callback returns, typing `@` alone
-		// would already produce one fetch and `fill('Walter')` another, breaking
-		// this assertion.
-		const personsFetches = fetchMock.mock.calls.filter(
-			([url]) => typeof url === 'string' && url.startsWith('/api/persons')
-		);
-		expect(personsFetches.length).toBe(1);
-	});
-
-	it('clearing the search input clears the list without firing a fetch', async () => {
-		const fetchMock = vi
-			.fn()
-			.mockResolvedValue({ ok: true, json: vi.fn().mockResolvedValue([AUGUSTE]) });
-		vi.stubGlobal('fetch', fetchMock);
-		renderHost();
-
-		await userEvent.type(page.getByRole('textbox'), '@Aug');
-		await vi.waitFor(async () => {
-			await expect.element(page.getByText('Auguste Raddatz')).toBeInTheDocument();
-		});
-
-		const fetchesBeforeClear = fetchMock.mock.calls.length;
-
-		await userEvent.clear(page.getByRole('searchbox'));
-
-		// Negative assertion: wait past the debounce window to confirm no
-		// trailing fetch was scheduled. Removing this wait would mask a
-		// re-introduction of the keystroke-driven items() fetch.
-		await new Promise((r) => setTimeout(r, SEARCH_DEBOUNCE_MS + POST_DEBOUNCE_SLACK_MS));
-
-		expect(fetchMock.mock.calls.length).toBe(fetchesBeforeClear);
-		await expect.element(page.getByText('Auguste Raddatz')).not.toBeInTheDocument();
-	});
-});
-
-// ─── Whitespace-only query (Elicit AC-4 ambiguity on PR #629) ───────────────
-
-describe('PersonMentionEditor — whitespace-only query', () => {
-	it('keeps the "Namen eingeben…" prompt and fires no fetch when @ is followed only by spaces', async () => {
-		const fetchMock = vi.fn().mockResolvedValue({ ok: true, json: vi.fn().mockResolvedValue([]) });
-		vi.stubGlobal('fetch', fetchMock);
-		renderHost();
-
-		await userEvent.type(page.getByRole('textbox'), '@   ');
-		await vi.waitFor(async () => {
-			await expect.element(page.getByRole('searchbox')).toBeVisible();
-		});
-
-		await new Promise((r) => setTimeout(r, SEARCH_DEBOUNCE_MS + POST_DEBOUNCE_SLACK_MS));
-
-		// Scope to the visible empty-state <p> (text-ink-3) — the persistent
-		// sr-only aria-live region above contains the same copy.
-		const visibleEmptyP = document.querySelector(
-			'[role="listbox"] p.text-ink-3'
-		) as HTMLElement | null;
-		expect(visibleEmptyP).not.toBeNull();
-		expect(visibleEmptyP!.textContent ?? '').toContain(m.person_mention_search_prompt());
-		expect(fetchMock).not.toHaveBeenCalled();
-	});
-});
-
-// ─── Stale-response race (Sara on PR #629) ───────────────────────────────────
-
-describe('PersonMentionEditor — stale-response race', () => {
-	it('discards a stale response that resolves after the search has been cleared', async () => {
-		let resolveFetch!: (v: { ok: boolean; json: () => Promise<Person[]> }) => void;
-		const pendingResponse = new Promise<{ ok: boolean; json: () => Promise<Person[]> }>((r) => {
-			resolveFetch = r;
-		});
-		const fetchMock = vi.fn().mockReturnValue(pendingResponse);
-		vi.stubGlobal('fetch', fetchMock);
-		renderHost();
-
-		// Open the dropdown and let the debounce fire so a fetch is in flight.
-		await userEvent.type(page.getByRole('textbox'), '@Aug');
-		await vi.waitFor(() => {
-			expect(fetchMock).toHaveBeenCalledWith(expect.stringContaining('/api/persons?q=Aug'));
-		});
-
-		// Clear the search input *before* the fetch resolves.
-		await userEvent.clear(page.getByRole('searchbox'));
-		await expect.element(page.getByRole('searchbox')).toHaveValue('');
-
-		// The stale fetch now resolves with persons. The dropdown must stay empty.
-		resolveFetch({ ok: true, json: () => Promise.resolve([AUGUSTE]) });
-		// Flush pending Svelte reactivity so any (non-)update from the stale
-		// fetch resolution has landed before we assert. expect.element already
-		// polls, so no fixed-timeout fallback is needed. Sara on PR #629 round 4.
-		await tick();
-
-		await expect.element(page.getByText('Auguste Raddatz')).not.toBeInTheDocument();
-	});
-});
-
-// ─── Server failure characterization (Sara #2 on PR #629) ───────────────────
-
-describe('PersonMentionEditor — server failure', () => {
-	it('on 500 response keeps the dropdown open with the empty-state copy (silent failure pinned; distinct error UX tracked separately)', async () => {
-		const fetchMock = vi
-			.fn()
-			.mockResolvedValue({ ok: false, status: 500, json: vi.fn().mockResolvedValue({}) });
-		vi.stubGlobal('fetch', fetchMock);
-		renderHost();
-
-		await userEvent.type(page.getByRole('textbox'), '@Aug');
-		await new Promise((r) => setTimeout(r, SEARCH_DEBOUNCE_MS + POST_DEBOUNCE_SLACK_MS));
-
-		// Pins current silent-failure behaviour. The day someone implements a
-		// distinct error UX (toast / "Suche fehlgeschlagen" copy), this test
-		// goes red and forces them to update the assertion. Scope to the
-		// visible <p> (text-ink-3) — the persistent sr-only live region
-		// above contains the same copy.
-		const visibleEmptyP = document.querySelector(
-			'[role="listbox"] p.text-ink-3'
-		) as HTMLElement | null;
-		expect(visibleEmptyP).not.toBeNull();
-		expect(visibleEmptyP!.textContent ?? '').toContain(m.person_mention_popup_empty());
-	});
-
-	it('on a fetch reject (network failure) keeps the dropdown open with the empty-state copy', async () => {
-		const fetchMock = vi.fn().mockRejectedValue(new TypeError('NetworkError'));
-		vi.stubGlobal('fetch', fetchMock);
-		renderHost();
-
-		await userEvent.type(page.getByRole('textbox'), '@Aug');
-		await new Promise((r) => setTimeout(r, SEARCH_DEBOUNCE_MS + POST_DEBOUNCE_SLACK_MS));
-
-		const visibleEmptyP = document.querySelector(
-			'[role="listbox"] p.text-ink-3'
-		) as HTMLElement | null;
-		expect(visibleEmptyP).not.toBeNull();
-		expect(visibleEmptyP!.textContent ?? '').toContain(m.person_mention_popup_empty());
-	});
-});
-
-// ─── onExit cancels pending debounce (Felix #1 on PR #629) ───────────────────
-
-describe('PersonMentionEditor — onExit cancels pending debounce', () => {
-	it('cancels the pending debounced fetch when Escape closes the dropdown before the debounce fires', async () => {
-		const fetchMock = vi.fn().mockResolvedValue({ ok: true, json: vi.fn().mockResolvedValue([]) });
-		vi.stubGlobal('fetch', fetchMock);
-		renderHost();
-
-		// Open the dropdown by typing @ + a query in the editor.
-		await userEvent.type(page.getByRole('textbox'), '@A');
-		await vi.waitFor(async () => {
-			await expect.element(page.getByRole('searchbox')).toBeVisible();
-		});
-
-		// Wait for any in-flight fetch from opening the dropdown to settle.
-		await new Promise((r) => setTimeout(r, SEARCH_DEBOUNCE_MS + POST_DEBOUNCE_SLACK_MS));
-		const fetchesBeforeEscape = fetchMock.mock.calls.length;
-
-		// Trigger a new debounced search (queues runSearch after 150 ms), then
-		// immediately Escape *while focus is back in the editor* so Tiptap's
-		// suggestion-plugin Escape handler fires onExit before the debounce.
-		// Without onExit cancelling the pending debounce, runSearch executes
-		// against the now-unmounted dropdown's state.
-		await page.getByRole('searchbox').fill('Walter');
-		// Focus the editor so the Escape lands on Tiptap's suggestion handler.
-		(page.getByRole('textbox').element() as HTMLElement).focus();
-		await userEvent.keyboard('{Escape}');
-
-		// Wait past the debounce window. If onExit did not cancel the pending
-		// debounce, a fetch with q=Walter would still fire here.
-		await new Promise((r) => setTimeout(r, SEARCH_DEBOUNCE_MS + POST_DEBOUNCE_SLACK_MS));
-
-		const newFetches = fetchMock.mock.calls.slice(fetchesBeforeEscape);
-		const walterFetches = newFetches.filter(
-			([url]) => typeof url === 'string' && url.includes('q=Walter')
-		);
-		expect(walterFetches.length).toBe(0);
-	});
-});
-
-// ─── AC-1: search input prefilled with text typed after @ ───────────────────
-
-describe('PersonMentionEditor — AC-1: search input prefill', () => {
-	it('prefills the dropdown search input with the text typed after @', async () => {
-		mockFetchEmpty();
-		renderHost();
-
-		await userEvent.type(page.getByRole('textbox'), '@WdG');
-
-		await vi.waitFor(async () => {
-			await expect.element(page.getByRole('searchbox')).toHaveValue('WdG');
-		});
-	});
-});
-
 // ─── AC-1: typed text becomes displayName, not DB name ───────────────────────
 
 describe('PersonMentionEditor — AC-1: typed text as displayName', () => {
@@ -514,39 +229,6 @@ describe('PersonMentionEditor — AC-1: typed text as displayName', () => {
 		});
 	});
 
-	it('clips the inserted displayName to MAX_QUERY_LENGTH=100 chars (Felix #3 on PR #629)', async () => {
-		// CWE-400 amplification: the dropdown clips its search input + mirror at
-		// 100 chars (Nora #1), but the host editor was passing the unclipped
-		// renderProps.query straight through to displayName — so a 105-char
-		// @-suffix in the editor could insert a 105-char displayName into the
-		// sidecar even though the dropdown only searched the first 100.
-		mockFetchWithPersons();
-		const host = renderHost();
-
-		// Type @ + 105 'A' chars in the contenteditable. The renderProps.query
-		// fed into the command callback derives from the editor text after `@`,
-		// not the dropdown's searchbox — so we must drive the editor.
-		await userEvent.type(page.getByRole('textbox'), '@' + 'A'.repeat(105));
-
-		// The mocked /api/persons returns AUGUSTE for any query — wait for it.
-		await vi.waitFor(async () => {
-			await expect.element(page.getByRole('option', { name: /Auguste Raddatz/ })).toBeVisible();
-		});
-
-		const option = (await page
-			.getByRole('option', { name: /Auguste Raddatz/ })
-			.element()) as HTMLElement;
-		option.dispatchEvent(new MouseEvent('mousedown', { bubbles: true, cancelable: true }));
-
-		await vi.waitFor(() => {
-			expect(host.snapshot.mentionedPersons).toHaveLength(1);
-			// Tight assertion: input is 105 chars, cap is exactly 100. Using
-			// `toHaveLength(100)` discriminates "clip works" from "clip works
-			// AND nothing weakened it to e.g. 95". Sara on PR #629 round 4.
-			expect(host.snapshot.mentionedPersons[0].displayName).toHaveLength(100);
-		});
-	});
-
 	it('does not duplicate the sidecar entry when the same person is selected twice', async () => {
 		mockFetchWithPersons();
 		const host = renderHost({

frontend/src/lib/shared/discussion/mentionConstants.ts

@@ -1,10 +0,0 @@
-/** Shared knobs for the @mention typeahead. Single source of truth for
- *  the dropdown component and the host editor — keeps the layered length
- *  cap and the debounce window consistent across both files. */
-export const MAX_QUERY_LENGTH = 100;
-export const SEARCH_DEBOUNCE_MS = 150;
-/** Defensive client-side cap on the result list. Single consumer today
- *  (PersonMentionEditor), kept here for symmetry with the other limit
- *  knobs so the @mention configuration lives in one place. Felix #1 on
- *  PR #629 round 4. */
-export const SEARCH_RESULT_LIMIT = 5;

frontend/src/lib/shared/services/confirm.svelte.test.ts

@@ -1,7 +1,7 @@
 import { describe, it, expect, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page, userEvent } from 'vitest/browser';
-import TestHost from './confirm.test-fixture.svelte';
+import TestHost from './confirm.test-host.svelte';
 import type { ConfirmService } from './confirm.svelte.js';
 
 afterEach(cleanup);

frontend/src/lib/shared/utils/debounce.ts

@@ -1,25 +1,12 @@
 /**
  * Returns a debounced version of fn that delays invocation until after
- * `delay` ms have elapsed since the last call. The returned function
- * exposes a `cancel()` method that DROPS (does not flush) the pending
- * trailing invocation — essential when the host context (a destroyed
- * component, an unmounted editor) shouldn't fire the trailing call.
+ * `delay` ms have elapsed since the last call.
  */
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
-export function debounce<T extends (...args: any[]) => void>(
-	fn: T,
-	delay: number
-): T & { cancel: () => void } {
-	let timer: ReturnType<typeof setTimeout> | undefined;
-	const wrapped = ((...args: Parameters<T>) => {
-		if (timer !== undefined) clearTimeout(timer);
+export function debounce<T extends (...args: any[]) => void>(fn: T, delay: number): T {
+	let timer: ReturnType<typeof setTimeout>;
+	return ((...args: Parameters<T>) => {
+		clearTimeout(timer);
 		timer = setTimeout(() => fn(...args), delay);
-	}) as T & { cancel: () => void };
-	wrapped.cancel = () => {
-		if (timer !== undefined) {
-			clearTimeout(timer);
-			timer = undefined;
-		}
-	};
-	return wrapped;
+	}) as T;
 }

frontend/src/routes/DocumentList.svelte.spec.ts

@@ -4,7 +4,7 @@ import { page } from 'vitest/browser';
 import DocumentList from './DocumentList.svelte';
 import type { components } from '$lib/generated/api';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({ goto: vi.fn() }));
 
 afterEach(() => cleanup());
 

frontend/src/routes/DocumentList.svelte.test.ts

@@ -2,7 +2,19 @@ import { describe, it, expect, vi, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: vi.fn(),
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 const { default: DocumentList } = await import('./DocumentList.svelte');
 

frontend/src/routes/DropZone.svelte.spec.ts

@@ -1,11 +1,13 @@
 import { describe, it, expect, afterEach, vi } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
-import { invalidateAll } from '$app/navigation';
 
 import DropZone from './DropZone.svelte';
 
-vi.mock('$app/navigation');
+// vi.hoisted lets the mock fn reference survive vi.mock's hoisting so tests
+// can assert on it from below while the factory remains self-contained.
+const { invalidateAllMock } = vi.hoisted(() => ({ invalidateAllMock: vi.fn(async () => {}) }));
+vi.mock('$app/navigation', () => ({ invalidateAll: invalidateAllMock }));
 
 afterEach(() => {
 	cleanup();
@@ -66,7 +68,7 @@ describe('DropZone onUploadComplete', () => {
 		// invalidateAll is the last async step of the upload handler — once it
 		// has been called, the callback decision has already been made.
 		await vi.waitFor(() => {
-			expect(vi.mocked(invalidateAll)).toHaveBeenCalled();
+			expect(invalidateAllMock).toHaveBeenCalled();
 		});
 		expect(onUploadComplete).not.toHaveBeenCalled();
 	});

frontend/src/routes/DropZone.svelte.test.ts

@@ -2,7 +2,19 @@ import { describe, it, expect, vi, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: vi.fn(),
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 const { default: DropZone } = await import('./DropZone.svelte');
 

frontend/src/routes/admin/groups/[id]/page.server.spec.ts

@@ -7,8 +7,7 @@ const mockApi = {
 };
 
 vi.mock('$lib/shared/api.server', () => ({
-	createApiClient: () => mockApi,
-	extractErrorCode: (e: unknown) => (e as { code?: string } | undefined)?.code
+	createApiClient: () => mockApi
 }));
 
 beforeEach(() => vi.clearAllMocks());

frontend/src/routes/admin/groups/[id]/page.svelte.spec.ts

@@ -5,7 +5,7 @@ import Page from './+page.svelte';
 import { createConfirmService, CONFIRM_KEY } from '$lib/shared/services/confirm.svelte.js';
 
 vi.mock('$app/forms', () => ({ enhance: () => () => {} }));
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({ beforeNavigate: vi.fn(), goto: vi.fn() }));
 
 import { beforeNavigate, goto } from '$app/navigation';
 

frontend/src/routes/admin/groups/layout.server.spec.ts

@@ -1,10 +1,7 @@
 import { describe, expect, it, vi, beforeEach } from 'vitest';
 import { load } from './+layout.server';
 
-vi.mock('$lib/shared/api.server', () => ({
-	createApiClient: vi.fn(),
-	extractErrorCode: (e: unknown) => (e as { code?: string } | undefined)?.code
-}));
+vi.mock('$lib/shared/api.server', () => ({ createApiClient: vi.fn() }));
 
 import { createApiClient } from '$lib/shared/api.server';
 

frontend/src/routes/admin/groups/new/page.svelte.spec.ts

@@ -11,7 +11,7 @@ vi.mock('$app/forms', () => ({
 		return { destroy: vi.fn() };
 	}
 }));
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({ beforeNavigate: vi.fn(), goto: vi.fn() }));
 
 import { beforeNavigate, goto } from '$app/navigation';
 

frontend/src/routes/admin/groups/new/page.svelte.test.ts

@@ -2,7 +2,19 @@ import { describe, it, expect, vi, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: vi.fn(),
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 const { default: AdminGroupNewPage } = await import('./+page.svelte');
 

frontend/src/routes/admin/layout.server.spec.ts

@@ -1,10 +1,7 @@
 import { describe, expect, it, vi, beforeEach } from 'vitest';
 import { load } from './+layout.server';
 
-vi.mock('$lib/shared/api.server', () => ({
-	createApiClient: vi.fn(),
-	extractErrorCode: (e: unknown) => (e as { code?: string } | undefined)?.code
-}));
+vi.mock('$lib/shared/api.server', () => ({ createApiClient: vi.fn() }));
 
 import { createApiClient } from '$lib/shared/api.server';
 

frontend/src/routes/admin/ocr/[personId]/page.server.spec.ts

@@ -3,10 +3,7 @@ import { load } from './+page.server';
 
 const mockApi = { GET: vi.fn() };
 
-vi.mock('$lib/shared/api.server', () => ({
-	createApiClient: () => mockApi,
-	extractErrorCode: (e: unknown) => (e as { code?: string } | undefined)?.code
-}));
+vi.mock('$lib/shared/api.server', () => ({ createApiClient: () => mockApi }));
 
 beforeEach(() => vi.clearAllMocks());
 

frontend/src/routes/admin/ocr/global/page.server.spec.ts

@@ -3,10 +3,7 @@ import { load } from './+page.server';
 
 const mockApi = { GET: vi.fn() };
 
-vi.mock('$lib/shared/api.server', () => ({
-	createApiClient: () => mockApi,
-	extractErrorCode: (e: unknown) => (e as { code?: string } | undefined)?.code
-}));
+vi.mock('$lib/shared/api.server', () => ({ createApiClient: () => mockApi }));
 
 beforeEach(() => vi.clearAllMocks());
 

frontend/src/routes/admin/ocr/page.server.spec.ts

@@ -3,10 +3,7 @@ import { load } from './+page.server';
 
 const mockApi = { GET: vi.fn() };
 
-vi.mock('$lib/shared/api.server', () => ({
-	createApiClient: () => mockApi,
-	extractErrorCode: (e: unknown) => (e as { code?: string } | undefined)?.code
-}));
+vi.mock('$lib/shared/api.server', () => ({ createApiClient: () => mockApi }));
 
 beforeEach(() => vi.clearAllMocks());
 

frontend/src/routes/admin/page.svelte.spec.ts

@@ -8,7 +8,7 @@ import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 import Page from './+page.svelte';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({ goto: vi.fn() }));
 
 const fullData = {
 	userCount: 4,

frontend/src/routes/admin/page.svelte.test.ts

@@ -2,7 +2,19 @@ import { describe, it, expect, vi, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: vi.fn(),
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 const { default: AdminEntryPage } = await import('./+page.svelte');
 

frontend/src/routes/admin/tags/[id]/page.server.spec.ts

@@ -8,8 +8,7 @@ const mockApi = {
 };
 
 vi.mock('$lib/shared/api.server', () => ({
-	createApiClient: () => mockApi,
-	extractErrorCode: (e: unknown) => (e as { code?: string } | undefined)?.code
+	createApiClient: () => mockApi
 }));
 
 beforeEach(() => vi.clearAllMocks());

frontend/src/routes/admin/tags/[id]/page.svelte.spec.ts

@@ -5,7 +5,11 @@ import Page from './+page.svelte';
 import { createConfirmService, CONFIRM_KEY } from '$lib/shared/services/confirm.svelte.js';
 
 vi.mock('$app/forms', () => ({ enhance: () => () => {} }));
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: vi.fn(),
+	goto: vi.fn(),
+	replaceState: vi.fn()
+}));
 vi.mock('$app/stores', () => ({
 	page: {
 		subscribe: (fn: (v: { url: URL }) => void) => {

frontend/src/routes/admin/tags/[id]/page.svelte.test.ts

@@ -17,7 +17,19 @@ vi.mock('$lib/shared/services/confirm.svelte', () => ({
 	getConfirmService: () => ({ confirm: async () => false })
 }));
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: vi.fn(),
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 const { default: AdminTagEditPage } = await import('./+page.svelte');
 

frontend/src/routes/admin/tags/layout.server.spec.ts

@@ -1,10 +1,7 @@
 import { describe, expect, it, vi, beforeEach } from 'vitest';
 import { load } from './+layout.server';
 
-vi.mock('$lib/shared/api.server', () => ({
-	createApiClient: vi.fn(),
-	extractErrorCode: (e: unknown) => (e as { code?: string } | undefined)?.code
-}));
+vi.mock('$lib/shared/api.server', () => ({ createApiClient: vi.fn() }));
 
 import { createApiClient } from '$lib/shared/api.server';
 

frontend/src/routes/admin/users/[id]/page.server.spec.ts

@@ -4,10 +4,7 @@ vi.mock('$env/dynamic/private', () => ({
 	env: { API_INTERNAL_URL: 'http://localhost:8080' }
 }));
 
-vi.mock('$lib/shared/api.server', () => ({
-	createApiClient: vi.fn(),
-	extractErrorCode: (e: unknown) => (e as { code?: string } | undefined)?.code
-}));
+vi.mock('$lib/shared/api.server', () => ({ createApiClient: vi.fn() }));
 
 import { load, actions } from './+page.server';
 import { createApiClient } from '$lib/shared/api.server';

frontend/src/routes/admin/users/[id]/page.svelte.spec.ts

@@ -15,7 +15,7 @@ vi.mock('$app/forms', () => ({
 		return () => {};
 	}
 }));
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({ beforeNavigate: vi.fn(), goto: vi.fn() }));
 
 import { beforeNavigate, goto } from '$app/navigation';
 

frontend/src/routes/admin/users/layout.server.spec.ts

@@ -1,10 +1,7 @@
 import { describe, expect, it, vi, beforeEach } from 'vitest';
 import { load } from './+layout.server';
 
-vi.mock('$lib/shared/api.server', () => ({
-	createApiClient: vi.fn(),
-	extractErrorCode: (e: unknown) => (e as { code?: string } | undefined)?.code
-}));
+vi.mock('$lib/shared/api.server', () => ({ createApiClient: vi.fn() }));
 
 import { createApiClient } from '$lib/shared/api.server';
 

frontend/src/routes/admin/users/new/page.svelte.spec.ts

@@ -11,7 +11,7 @@ vi.mock('$app/forms', () => ({
 		return { destroy: vi.fn() };
 	}
 }));
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({ beforeNavigate: vi.fn(), goto: vi.fn() }));
 
 import { beforeNavigate, goto } from '$app/navigation';
 

frontend/src/routes/admin/users/new/page.svelte.test.ts

@@ -2,7 +2,19 @@ import { describe, it, expect, vi, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: vi.fn(),
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 const { default: AdminUserNewPage } = await import('./+page.svelte');
 

frontend/src/routes/aktivitaeten/+page.server.ts

@@ -1,6 +1,4 @@
-import { fail } from '@sveltejs/kit';
 import { createApiClient } from '$lib/shared/api.server';
-import { getErrorMessage } from '$lib/shared/errors';
 import type { components, operations } from '$lib/generated/api';
 
 type ActivityFeedItemDTO = components['schemas']['ActivityFeedItemDTO'];
@@ -67,31 +65,3 @@ export async function load({ fetch, url }) {
 		loadError
 	};
 }
-
-export const actions = {
-	'dismiss-notification': async ({ request, fetch }) => {
-		const data = await request.formData();
-		const raw = data.get('notificationId');
-		const notificationId = typeof raw === 'string' ? raw : null;
-		if (!notificationId) return fail(400, { error: getErrorMessage(undefined) });
-		const api = createApiClient(fetch);
-		const result = await api.PATCH('/api/notifications/{id}/read', {
-			params: { path: { id: notificationId } }
-		});
-		if (!result.response.ok) {
-			const code = (result.error as unknown as { code?: string })?.code;
-			return fail(result.response.status, { error: getErrorMessage(code) });
-		}
-		return { success: true };
-	},
-
-	'mark-all-read': async ({ fetch }) => {
-		const api = createApiClient(fetch);
-		const result = await api.POST('/api/notifications/read-all');
-		if (!result.response.ok) {
-			const code = (result.error as unknown as { code?: string })?.code;
-			return fail(result.response.status, { error: getErrorMessage(code) });
-		}
-		return { success: true };
-	}
-};

frontend/src/routes/aktivitaeten/+page.svelte

@@ -76,6 +76,14 @@ async function onFilterChange(v: FilterValue) {
 	});
 }
 
+async function onMarkRead(n: NotificationItem) {
+	await notificationStore.markRead(n);
+}
+
+async function onMarkAllRead() {
+	await notificationStore.markAllRead();
+}
+
 const displayFeed = $derived(applyClientFilter(data.activityFeed, data.filter));
 
 const isEmpty = $derived(displayFeed.length === 0);
@@ -100,11 +108,7 @@ function retry() {
 	{#if data.loadError === 'activity'}
 		<ChronikErrorCard onRetry={retry} />
 	{:else}
-		<ChronikFuerDichBox
-			unread={unread}
-			optimisticMarkRead={notificationStore.optimisticMarkRead}
-			optimisticMarkAllRead={notificationStore.optimisticMarkAllRead}
-		/>
+		<ChronikFuerDichBox unread={unread} onMarkRead={onMarkRead} onMarkAllRead={onMarkAllRead} />
 
 		<div class="mt-6">
 			<ChronikFilterPills value={data.filter} onChange={onFilterChange} />

frontend/src/routes/aktivitaeten/page.server.spec.ts

@@ -1,15 +1,12 @@
 import { beforeEach, describe, expect, it, vi } from 'vitest';
-import { load, actions } from './+page.server';
+import { load } from './+page.server';
 
 const mockApi = {
-	GET: vi.fn(),
-	PATCH: vi.fn(),
-	POST: vi.fn()
+	GET: vi.fn()
 };
 
 vi.mock('$lib/shared/api.server', () => ({
-	createApiClient: () => mockApi,
-	extractErrorCode: (e: unknown) => (e as { code?: string } | undefined)?.code
+	createApiClient: () => mockApi
 }));
 
 function buildUrl(search = ''): URL {
@@ -176,84 +173,3 @@ describe('aktivitaeten/load — kinds param per filter', () => {
 		expect(call[1].params.query.kinds).toHaveLength(2);
 	});
 });
-
-// eslint-disable-next-line @typescript-eslint/no-explicit-any
-function makeActionEvent(formData: FormData): any {
-	return {
-		request: new Request('http://localhost/aktivitaeten', { method: 'POST', body: formData }),
-		fetch
-	};
-}
-
-describe('aktivitaeten/actions — dismiss-notification', () => {
-	it('returns fail(400, { error }) and does NOT call PATCH when notificationId is missing', async () => {
-		const result = await actions['dismiss-notification'](makeActionEvent(new FormData()));
-
-		expect(result).toMatchObject({ status: 400 });
-		expect(mockApi.PATCH).not.toHaveBeenCalled();
-	});
-
-	it('calls PATCH /api/notifications/{id}/read with the form-supplied notificationId', async () => {
-		mockApi.PATCH.mockResolvedValue({ response: { ok: true }, data: {} });
-		const fd = new FormData();
-		fd.set('notificationId', 'n-abc');
-
-		await actions['dismiss-notification'](makeActionEvent(fd));
-
-		expect(mockApi.PATCH).toHaveBeenCalledWith('/api/notifications/{id}/read', {
-			params: { path: { id: 'n-abc' } }
-		});
-	});
-
-	it('returns { success: true } when the API responds ok', async () => {
-		mockApi.PATCH.mockResolvedValue({ response: { ok: true }, data: {} });
-		const fd = new FormData();
-		fd.set('notificationId', 'n-abc');
-
-		const result = await actions['dismiss-notification'](makeActionEvent(fd));
-
-		expect(result).toEqual({ success: true });
-	});
-
-	it('returns fail(status, { error }) when the API responds non-ok', async () => {
-		mockApi.PATCH.mockResolvedValue({
-			response: { ok: false, status: 403 },
-			error: { code: 'NOTIFICATION_NOT_FOUND' }
-		});
-		const fd = new FormData();
-		fd.set('notificationId', 'n-abc');
-
-		const result = await actions['dismiss-notification'](makeActionEvent(fd));
-
-		expect(result).toMatchObject({ status: 403 });
-	});
-});
-
-describe('aktivitaeten/actions — mark-all-read', () => {
-	it('calls POST /api/notifications/read-all', async () => {
-		mockApi.POST.mockResolvedValue({ response: { ok: true }, data: null });
-
-		await actions['mark-all-read'](makeActionEvent(new FormData()));
-
-		expect(mockApi.POST).toHaveBeenCalledWith('/api/notifications/read-all');
-	});
-
-	it('returns { success: true } when the API responds ok', async () => {
-		mockApi.POST.mockResolvedValue({ response: { ok: true }, data: null });
-
-		const result = await actions['mark-all-read'](makeActionEvent(new FormData()));
-
-		expect(result).toEqual({ success: true });
-	});
-
-	it('returns fail(status, { error }) when the API responds non-ok', async () => {
-		mockApi.POST.mockResolvedValue({
-			response: { ok: false, status: 500 },
-			error: { code: 'INTERNAL_ERROR' }
-		});
-
-		const result = await actions['mark-all-read'](makeActionEvent(new FormData()));
-
-		expect(result).toMatchObject({ status: 500 });
-	});
-});

frontend/src/routes/aktivitaeten/page.svelte.test.ts

@@ -14,7 +14,19 @@ vi.mock('$app/state', () => ({
 	}
 }));
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: vi.fn(),
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 vi.mock('$lib/notification/notifications.svelte', () => ({
 	notificationStore: {

frontend/src/routes/briefwechsel/CorrespondenzHero.svelte.spec.ts

@@ -3,7 +3,7 @@ import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 import CorrespondenzHero from './CorrespondenzHero.svelte';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({ goto: vi.fn() }));
 
 afterEach(cleanup);
 

frontend/src/routes/briefwechsel/page.server.spec.ts

@@ -1,10 +1,7 @@
 import { describe, expect, it, vi, beforeEach } from 'vitest';
 import { load } from './+page.server';
 
-vi.mock('$lib/shared/api.server', () => ({
-	createApiClient: vi.fn(),
-	extractErrorCode: (e: unknown) => (e as { code?: string } | undefined)?.code
-}));
+vi.mock('$lib/shared/api.server', () => ({ createApiClient: vi.fn() }));
 vi.mock('$lib/shared/errors', () => ({
 	getErrorMessage: (code: string) => code ?? 'Unknown error'
 }));

frontend/src/routes/briefwechsel/page.svelte.spec.ts

@@ -3,7 +3,7 @@ import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 import Page from './+page.svelte';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({ goto: vi.fn() }));
 
 afterEach(cleanup);
 

frontend/src/routes/briefwechsel/page.svelte.test.ts

@@ -2,7 +2,19 @@ import { describe, it, expect, vi, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: vi.fn(),
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 const { default: BriefwechselPage } = await import('./+page.svelte');
 

frontend/src/routes/documents/[id]/page.server.spec.ts

@@ -1,9 +1,6 @@
 import { describe, expect, it, vi, beforeEach } from 'vitest';
 
-vi.mock('$lib/shared/api.server', () => ({
-	createApiClient: vi.fn(),
-	extractErrorCode: (e: unknown) => (e as { code?: string } | undefined)?.code
-}));
+vi.mock('$lib/shared/api.server', () => ({ createApiClient: vi.fn() }));
 vi.mock('$env/dynamic/private', () => ({ env: { API_INTERNAL_URL: 'http://test-backend:8080' } }));
 
 import { load } from './+page.server';

frontend/src/routes/documents/[id]/page.svelte.test.ts

@@ -13,7 +13,19 @@ vi.mock('$app/state', () => ({
 	}
 }));
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: vi.fn(),
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 vi.mock('$lib/shared/services/confirm.svelte', () => ({
 	getConfirmService: () => ({ confirm: async () => false })

frontend/src/routes/documents/bulk-edit/page.svelte.test.ts

@@ -1,9 +1,21 @@
 import { describe, it, expect, vi, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
-import { goto } from '$app/navigation';
 
-vi.mock('$app/navigation');
+const gotoSpy = vi.fn();
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: gotoSpy,
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 const { bulkSelectionStore } = await import('$lib/document/bulkSelection.svelte');
 const { default: BulkEditPage } = await import('./+page.svelte');
@@ -11,14 +23,14 @@ const { default: BulkEditPage } = await import('./+page.svelte');
 afterEach(() => {
 	cleanup();
 	bulkSelectionStore.clear();
-	vi.mocked(goto).mockClear();
+	gotoSpy.mockClear();
 });
 
 describe('documents/bulk-edit page', () => {
 	it('redirects to /documents when no documents are selected', async () => {
 		render(BulkEditPage, { props: {} });
 
-		await vi.waitFor(() => expect(vi.mocked(goto)).toHaveBeenCalledWith('/documents'));
+		await vi.waitFor(() => expect(gotoSpy).toHaveBeenCalledWith('/documents'));
 	});
 
 	it('shows the loading spinner while fetching batch metadata', async () => {

frontend/src/routes/documents/page.server.spec.ts

@@ -1,9 +1,6 @@
 import { describe, expect, it, vi, beforeEach } from 'vitest';
 
-vi.mock('$lib/shared/api.server', () => ({
-	createApiClient: vi.fn(),
-	extractErrorCode: (e: unknown) => (e as { code?: string } | undefined)?.code
-}));
+vi.mock('$lib/shared/api.server', () => ({ createApiClient: vi.fn() }));
 
 import { load } from './+page.server';
 import { createApiClient } from '$lib/shared/api.server';

frontend/src/routes/documents/page.svelte.spec.ts

@@ -2,7 +2,7 @@ import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({ goto: vi.fn() }));
 vi.mock('$app/state', () => ({ navigating: { to: null } }));
 
 import Page from './+page.svelte';

frontend/src/routes/documents/page.svelte.test.ts

@@ -4,7 +4,19 @@ import { page } from 'vitest/browser';
 
 const mockNavigating = { to: null };
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: vi.fn(),
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 vi.mock('$app/state', () => ({
 	get navigating() {

frontend/src/routes/geschichten/[id]/edit/page.svelte.test.ts

@@ -2,7 +2,19 @@ import { describe, it, expect, vi, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: vi.fn(),
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 const { default: GeschichtenEditPage } = await import('./+page.svelte');
 

frontend/src/routes/geschichten/new/page.svelte.test.ts

@@ -2,7 +2,19 @@ import { describe, it, expect, vi, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: vi.fn(),
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 const { default: GeschichtenNewPage } = await import('./+page.svelte');
 

frontend/src/routes/geschichten/page.svelte.spec.ts

@@ -2,7 +2,7 @@ import { afterEach, describe, expect, it, vi } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({ goto: vi.fn() }));
 vi.mock('$app/state', () => ({ navigating: { to: null } }));
 
 import Page from './+page.svelte';

frontend/src/routes/geschichten/page.svelte.test.ts

@@ -2,7 +2,19 @@ import { describe, it, expect, vi, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: vi.fn(),
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 const { default: GeschichtenListPage } = await import('./+page.svelte');
 

frontend/src/routes/page.server.spec.ts

@@ -1,9 +1,6 @@
 import { describe, expect, it, vi, beforeEach } from 'vitest';
 
-vi.mock('$lib/shared/api.server', () => ({
-	createApiClient: vi.fn(),
-	extractErrorCode: (e: unknown) => (e as { code?: string } | undefined)?.code
-}));
+vi.mock('$lib/shared/api.server', () => ({ createApiClient: vi.fn() }));
 
 import { load } from './+page.server';
 import { createApiClient } from '$lib/shared/api.server';

frontend/src/routes/page.svelte.spec.ts

@@ -8,7 +8,7 @@ type User = components['schemas']['AppUser'];
 
 afterEach(cleanup);
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({ goto: vi.fn(), invalidateAll: vi.fn() }));
 
 const baseUser: User = {
 	id: 'u1',

frontend/src/routes/persons/[id]/page.server.spec.ts

@@ -1,10 +1,7 @@
 import { describe, expect, it, vi, beforeEach } from 'vitest';
 import { load } from './+page.server';
 
-vi.mock('$lib/shared/api.server', () => ({
-	createApiClient: vi.fn(),
-	extractErrorCode: (e: unknown) => (e as { code?: string } | undefined)?.code
-}));
+vi.mock('$lib/shared/api.server', () => ({ createApiClient: vi.fn() }));
 
 import { createApiClient } from '$lib/shared/api.server';
 

frontend/src/routes/persons/page.svelte.spec.ts

@@ -5,7 +5,7 @@ import Page from './+page.svelte';
 
 const tick = () => new Promise((r) => setTimeout(r, 0));
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({ goto: vi.fn() }));
 
 const makePerson = (overrides = {}) => ({
 	id: '1',

frontend/src/routes/persons/page.svelte.test.ts

@@ -2,7 +2,19 @@ import { describe, it, expect, vi, afterEach } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 
-vi.mock('$app/navigation');
+vi.mock('$app/navigation', () => ({
+	beforeNavigate: () => {},
+	afterNavigate: () => {},
+	goto: vi.fn(),
+	invalidate: vi.fn(),
+	invalidateAll: vi.fn(),
+	preloadCode: vi.fn(),
+	preloadData: vi.fn(),
+	pushState: vi.fn(),
+	replaceState: vi.fn(),
+	disableScrollHandling: vi.fn(),
+	onNavigate: () => () => {}
+}));
 
 const { default: PersonsListPage } = await import('./+page.svelte');
 

infra/observability/grafana/provisioning/dashboards/loki-logs.json

@@ -196,7 +196,7 @@
       },
       "targets": [
         {
-          "expr": "{job=\"$app\"} |= \"$search\" | json",
+          "expr": "{job=\"$app\"} |= \"$search\" | logfmt",
           "hide": false,
           "legendFormat": "",
           "refId": "A"