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/bookmarks.spec.ts

@@ -6,14 +6,23 @@ const userFixture = {
     username: 'alice',
     created_at: '2026-01-01T00:00:00Z'
 };
+// Faithful `MangaDetail` (GET /v1/mangas/:id). The detail page reads
+// authors/genres/tags/alt_titles/content_warnings during render, so these
+// must be present or the component throws before painting.
 const mangaFixture = {
     id: mangaId,
     title: 'Berserk',
-    author: 'Kentaro Miura',
+    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: 'a2222222-2222-2222-2222-222222222222', name: 'Kentaro Miura' }],
+    genres: [],
+    tags: [],
+    content_warnings: [],
+    chapter_storage_bytes: 0
 };
 const bookmarkFixture = {
     id: 'b1',
@@ -74,6 +83,22 @@ async function setupAuthenticatedBookmarkFlow(page: Page) {
             })
         })
     );
+    // Authed but no saved position (404 → null) + empty recommendations —
+    // both fetched by the manga-detail load's Promise.all.
+    await page.route(`**/api/v1/me/read-progress/${mangaId}`, (route) =>
+        route.fulfill({
+            status: 404,
+            contentType: 'application/json',
+            body: JSON.stringify({ error: { code: 'not_found', message: 'no progress' } })
+        })
+    );
+    await page.route(`**/api/v1/mangas/${mangaId}/similar`, (route) =>
+        route.fulfill({
+            status: 200,
+            contentType: 'application/json',
+            body: JSON.stringify({ items: [] })
+        })
+    );
     await page.route('**/api/v1/bookmarks', (route) => {
         if (route.request().method() === 'POST') {
             // List endpoint is enriched (BookmarkSummary), POST returns
@@ -163,6 +188,20 @@ test('anonymous user sees a sign-in CTA instead of a toggle', async ({ page }) =
             body: JSON.stringify({ error: { code: 'unauthenticated', message: 'unauthenticated' } })
         })
     );
+    await page.route(`**/api/v1/me/read-progress/${mangaId}`, (route) =>
+        route.fulfill({
+            status: 401,
+            contentType: 'application/json',
+            body: JSON.stringify({ error: { code: 'unauthenticated', message: 'unauthenticated' } })
+        })
+    );
+    await page.route(`**/api/v1/mangas/${mangaId}/similar`, (route) =>
+        route.fulfill({
+            status: 200,
+            contentType: 'application/json',
+            body: JSON.stringify({ items: [] })
+        })
+    );
 
     await page.goto(`/manga/${mangaId}`);
     await expect(page.getByTestId('bookmark-signin')).toBeVisible();