test(e2e): realign mocks + assertions with the current API and OCR-era UI

The route-mocked E2E specs had drifted from the app they exercise, so
each rendered an empty/500 page and timed out on missing elements:

- Manga detail + reader loads now also fetch read-progress/{id} and
  /similar; several specs never mocked them, so the load's Promise.all
  rejected. Add the mocks and fill the manga fixtures out to a real
  MangaDetail (status/alt_titles/authors/genres/tags/... ) so the
  components stop throwing mid-render.
- back-nav + library: widen `read-progress*`/`page-tags` globs — `*`
  doesn't cross `/`, so `/me/read-progress/{id}` fell through to the
  proxy and 500'd; mock the library page-tags pair too.
- manga-list search: wait for the initial load to settle before
  searching so the search fetch can't race the mount-time load.
- reader-chapter-select: assert the shared `chapterLabel` output.
- admin-analysis: the active OCR backend extracts text only, so the
  detail modal shows OCR (no tags/NSFW) and metrics shows tiles +
  trend charts (no by-model) — assert what the OCR-era UI renders.
- profile: assert the wrong-password 401 stays inline (guards the
  fix in the preceding commit) and mock the guest bookmark/collection
  fetches the /profile load maps to the sign-in prompt.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/e2e/reader-chapter-select.spec.ts

@@ -5,14 +5,22 @@ const chapter1Id = 'c1111111-3333-3333-3333-333333333333';
 const chapter2Id = 'c2222222-3333-3333-3333-333333333333';
 const chapter3Id = 'c3333333-3333-3333-3333-333333333333';
 
+// Faithful `MangaDetail` (GET /v1/mangas/:id) so getManga in the reader
+// load returns a shape the components can consume without throwing.
 const mangaFixture = {
     id: mangaId,
     title: 'Vinland Saga',
-    author: 'Makoto Yukimura',
+    status: 'ongoing',
+    alt_titles: [],
     description: null,
     cover_image_path: null,
     created_at: '2026-01-01T00:00:00Z',
-    updated_at: '2026-01-01T00:00:00Z'
+    updated_at: '2026-01-01T00:00:00Z',
+    authors: [{ id: 'a3333333-3333-3333-3333-333333333333', name: 'Makoto Yukimura' }],
+    genres: [],
+    tags: [],
+    content_warnings: [],
+    chapter_storage_bytes: 0
 };
 
 const chaptersFixture = [
@@ -86,6 +94,16 @@ async function mockReaderApis(page: Page) {
             body: JSON.stringify({ error: { code: 'unauthenticated', message: '' } })
         })
     );
+    // The reader load reads saved position; guest → 401 → null. Without
+    // this the fetch falls through to the (absent) backend and the load
+    // rejects before the reader renders.
+    await page.route(`**/api/v1/me/read-progress/${mangaId}`, (route) =>
+        route.fulfill({
+            status: 401,
+            contentType: 'application/json',
+            body: JSON.stringify({ error: { code: 'unauthenticated', message: '' } })
+        })
+    );
     await page.route(`**/api/v1/mangas/${mangaId}`, (route) =>
         route.fulfill({
             status: 200,
@@ -142,13 +160,14 @@ test('reader chapter select lists every chapter with the manga-detail-style labe
     // The current chapter is preselected.
     await expect(select).toHaveValue(chapter2Id);
 
-    // Each chapter rendered as "Ch. N — Title" (or "Ch. N" when title is null),
-    // in ascending number order — matching the prev/next sort.
+    // Each chapter rendered via the shared `chapterLabel` helper — the
+    // chapter title, or "Chapter N" when the title is null — in ascending
+    // number order, matching the prev/next sort and the manga-detail list.
     const labels = await select.locator('option').allTextContents();
     expect(labels.map((l) => l.trim())).toEqual([
-        'Ch. 1 — Somewhere, Not Here',
-        'Ch. 2',
-        'Ch. 3 — Sword Dance'
+        'Somewhere, Not Here',
+        'Chapter 2',
+        'Sword Dance'
     ]);
 });