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.spec.ts

@@ -2,14 +2,23 @@ import { test, expect, type Page } from '@playwright/test';
 
 const mangaId = '11111111-1111-1111-1111-111111111111';
 const chapterId = 'c1111111-1111-1111-1111-111111111111';
+// A faithful `MangaDetail` (GET /v1/mangas/:id) — the detail page reads
+// authors/genres/tags/alt_titles/content_warnings, so a minimal shape makes
+// the component throw mid-render and nothing paints.
 const mangaFixture = {
     id: mangaId,
     title: 'Berserk',
-    author: 'Kentaro Miura',
+    status: 'ongoing',
+    alt_titles: [],
     description: 'A dark fantasy.',
     cover_image_path: 'mangas/11111111-1111-1111-1111-111111111111/cover.png',
     created_at: '2026-01-01T00:00:00Z',
-    updated_at: '2026-01-01T00:00:00Z'
+    updated_at: '2026-01-01T00:00:00Z',
+    authors: [{ id: 'a1111111-1111-1111-1111-111111111111', name: 'Kentaro Miura' }],
+    genres: [],
+    tags: [],
+    content_warnings: [],
+    chapter_storage_bytes: 0
 };
 const chaptersFixture = [
     {
@@ -103,6 +112,24 @@ async function mockReaderApis(page: Page) {
                 body: JSON.stringify({ pages: pagesFixture })
             })
     );
+    // Guest: no saved read position. The manga-detail + reader loads both
+    // call this; a 401 maps to `null` in getMyReadProgressForManga, matching
+    // a real unauthenticated request.
+    await page.route(`**/api/v1/me/read-progress/${mangaId}`, (route) =>
+        route.fulfill({
+            status: 401,
+            contentType: 'application/json',
+            body: JSON.stringify({ error: { code: 'unauthenticated', message: 'unauthenticated' } })
+        })
+    );
+    // Recommendations: a real `{ items }` top-N (empty is a valid result).
+    await page.route(`**/api/v1/mangas/${mangaId}/similar`, (route) =>
+        route.fulfill({
+            status: 200,
+            contentType: 'application/json',
+            body: JSON.stringify({ items: [] })
+        })
+    );
     // Stub image bytes so the <img> doesn't 404 (1x1 transparent PNG).
     const png = Buffer.from(
         '89504e470d0a1a0a0000000d49484452000000010000000108060000001f15c4890000000d49444154789c63000100000005000158a3b62a0000000049454e44ae426082',
@@ -118,7 +145,7 @@ test('manga overview shows title, cover, and a chapter list', async ({ page }) =
     await page.goto(`/manga/${mangaId}`);
 
     await expect(page.getByTestId('manga-title')).toHaveText('Berserk');
-    await expect(page.getByTestId('manga-author')).toContainText('Kentaro Miura');
+    await expect(page.getByTestId('manga-authors')).toContainText('Kentaro Miura');
     await expect(page.getByTestId('manga-cover')).toBeVisible();
     await expect(page.getByTestId('chapter-list')).toContainText('The Brand');
     await expect(page.getByTestId('bookmark-signin')).toBeVisible();