feat(person): paginate GET /api/persons and add confirm/delete endpoints

GET /api/persons now returns PersonSearchResult with server-side filter params
(type, familyOnly, hasDocuments, provisional) and page/size bounds (@Min/@Max
-> 400). review=true drops the clean reader default. The legacy
sort=documentCount top-N path is folded into the paged contract. Add
PATCH /{id}/confirm and DELETE /{id}, both WRITE_ALL-guarded. Remove the now
unreachable PersonService.findAll(String).

BREAKING-CHANGE: GET /api/persons response shape changes from a bare list to
PersonSearchResult { items, totalElements, pageNumber, pageSize, totalPages }.

Refs #667

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

backend/src/main/java/org/raddatz/familienarchiv/person/PersonController.java

@@ -22,12 +22,15 @@ import org.springframework.web.bind.annotation.*;
 import org.springframework.web.server.ResponseStatusException;
 
 import jakarta.validation.Valid;
+import jakarta.validation.constraints.Max;
+import jakarta.validation.constraints.Min;
 
 import lombok.RequiredArgsConstructor;
 
 @RestController
 @RequestMapping("/api/persons")
 @RequiredArgsConstructor
+@Validated
 public class PersonController {
 
     private final PersonService personService;
@@ -35,15 +38,35 @@ public class PersonController {
 
     @GetMapping
     @RequirePermission(Permission.READ_ALL)
-    public ResponseEntity<List<PersonSummaryDTO>> getPersons(
+    public ResponseEntity<PersonSearchResult> getPersons(
             @RequestParam(required = false) String q,
-            @RequestParam(required = false, defaultValue = "0") int size,
-            @RequestParam(required = false) String sort) {
-        if ("documentCount".equals(sort) && size > 0 && q == null) {
+            @RequestParam(required = false) PersonType type,
+            @RequestParam(required = false) Boolean familyOnly,
+            @RequestParam(required = false) Boolean hasDocuments,
+            @RequestParam(required = false) Boolean provisional,
+            // review=true reveals the import noise (transcriber view); absent/false keeps the
+            // clean reader default (familyMember OR documentCount > 0). The explicit filters AND
+            // within whichever base the review flag selects.
+            @RequestParam(required = false, defaultValue = "false") boolean review,
+            @RequestParam(required = false) String sort,
+            @RequestParam(defaultValue = "0") @Min(0) int page,
+            @RequestParam(defaultValue = "50") @Min(1) @Max(100) int size) {
+        // Legacy top-N-by-document-count path (reader dashboard): preserved, now wrapped in the
+        // paged contract so /api/persons always returns one shape.
+        if ("documentCount".equals(sort) && q == null) {
             int safeSize = Math.min(size, 50);
-            return ResponseEntity.ok(personService.findTopByDocumentCount(safeSize));
+            List<PersonSummaryDTO> top = personService.findTopByDocumentCount(safeSize);
+            return ResponseEntity.ok(PersonSearchResult.paged(top, 0, safeSize, top.size()));
         }
-        return ResponseEntity.ok(personService.findAll(q));
+
+        PersonFilter filter = PersonFilter.builder()
+                .type(type)
+                .familyOnly(familyOnly)
+                .hasDocuments(hasDocuments)
+                .provisional(provisional)
+                .readerDefault(!review)
+                .build();
+        return ResponseEntity.ok(personService.search(filter, page, size, q));
     }
 
     @GetMapping("/{id}")
@@ -110,6 +133,21 @@ public class PersonController {
         personService.mergePersons(id, UUID.fromString(targetIdStr));
     }
 
+    // Dedicated state transition that clears the provisional flag. A separate verb (not a
+    // mass-assignable DTO field) so provisional can never be smuggled in via create/update.
+    @PatchMapping("/{id}/confirm")
+    @RequirePermission(Permission.WRITE_ALL)
+    public ResponseEntity<Person> confirmPerson(@PathVariable UUID id) {
+        return ResponseEntity.ok(personService.confirmPerson(id));
+    }
+
+    @DeleteMapping("/{id}")
+    @ResponseStatus(HttpStatus.NO_CONTENT)
+    @RequirePermission(Permission.WRITE_ALL)
+    public void deletePerson(@PathVariable UUID id) {
+        personService.deletePerson(id);
+    }
+
     // ─── Alias endpoints ────────────────────────────────────────────────────
 
     @GetMapping("/{id}/aliases")

backend/src/main/java/org/raddatz/familienarchiv/person/PersonService.java

@@ -31,16 +31,6 @@ public class PersonService {
     private final PersonRepository personRepository;
     private final PersonNameAliasRepository aliasRepository;
 
-    public List<PersonSummaryDTO> findAll(String q) {
-        if (q == null) {
-            return personRepository.findAllWithDocumentCount();
-        }
-        if (q.isBlank()) {
-            return List.of();
-        }
-        return personRepository.searchWithDocumentCount(q.trim());
-    }
-
     public List<PersonSummaryDTO> findTopByDocumentCount(int limit) {
         return personRepository.findTopByDocumentCount(limit);
     }