feat(api): /api/recipes/all akzeptiert sort=viewed + profile_id

VALID_SORTS um 'viewed' erweitert. parseProfileId-Helper analog zu
/api/wishlist. Wert wird an listAllRecipesPaginated als 5. Param
durchgereicht.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/routes/api/recipes/all/+server.ts

@@ -6,7 +6,19 @@ import {
   type AllRecipesSort
 } from '$lib/server/recipes/search-local';
 
-const VALID_SORTS = new Set<AllRecipesSort>(['name', 'rating', 'cooked', 'created']);
+const VALID_SORTS = new Set<AllRecipesSort>([
+  'name',
+  'rating',
+  'cooked',
+  'created',
+  'viewed'
+]);
+
+function parseProfileId(raw: string | null): number | null {
+  if (!raw) return null;
+  const n = Number(raw);
+  return Number.isInteger(n) && n > 0 ? n : null;
+}
 
 export const GET: RequestHandler = async ({ url }) => {
   const sortRaw = (url.searchParams.get('sort') ?? 'name') as AllRecipesSort;
@@ -17,6 +29,7 @@ export const GET: RequestHandler = async ({ url }) => {
   // one round-trip so document height matches and scroll-restore lands.
   const limit = Math.min(200, Math.max(1, Number(url.searchParams.get('limit') ?? 10)));
   const offset = Math.max(0, Number(url.searchParams.get('offset') ?? 0));
-  const hits = listAllRecipesPaginated(getDb(), sortRaw, limit, offset);
+  const profileId = parseProfileId(url.searchParams.get('profile_id'));
+  const hits = listAllRecipesPaginated(getDb(), sortRaw, limit, offset, profileId);
   return json({ sort: sortRaw, limit, offset, hits });
 };

tests/integration/recipe-views.test.ts

@@ -237,3 +237,34 @@ describe('POST /api/recipes/[id]/view', () => {
     ).rejects.toMatchObject({ status: 404 });
   });
 });
+
+// ---------------------------------------------------------------------------
+// GET /api/recipes/all — sort=viewed + profile_id
+// ---------------------------------------------------------------------------
+
+import { GET as allGet } from '../../src/routes/api/recipes/all/+server';
+
+describe('GET /api/recipes/all sort=viewed', () => {
+  it('passes profile_id through and returns viewed-order hits', async () => {
+    const db = openInMemoryForTest();
+    testDb.current = db;
+    const profile = createProfile(db, 'Test');
+    const a = seedRecipe(db, 'Apfel');
+    const b = seedRecipe(db, 'Birne');
+    recordView(db, profile.id, b);
+    await new Promise((r) => setTimeout(r, 1100));
+    recordView(db, profile.id, a);
+
+    const url = new URL(`http://localhost/api/recipes/all?sort=viewed&profile_id=${profile.id}&limit=10`);
+    const res = await allGet({ url } as never);
+    expect(res.status).toBe(200);
+    const body = await res.json();
+    expect(body.sort).toBe('viewed');
+    expect(body.hits.map((h: { id: number }) => h.id)).toEqual([a, b]);
+  });
+
+  it('400 on invalid sort', async () => {
+    const url = new URL('http://localhost/api/recipes/all?sort=invalid');
+    await expect(allGet({ url } as never)).rejects.toMatchObject({ status: 400 });
+  });
+});