Prune stale docs and update .hermes content

Delete a large set of outdated documentation (many files under docs/ and .hermes/plans/, including audits, design, prd, technical, planning, assets, and todos). Update and consolidate .hermes content: refresh shared-memory pages (decision-log, development-workflow, document-map, pitfalls, project-overview, team-conventions) and several skills/references under .hermes/skills. Also modify AGENTS.md, README.md, UI_CODING_STANDARD.md, docs/README.md and .encoding-check-ignore. Purpose: clean up stale planning/audit material and keep current hermes documentation and related top-level docs in sync.

src/components/rpg-entry/RpgEntryHomeView.recharge.test.tsx

@@ -2755,6 +2755,48 @@ test('mobile game category list orders works by composite public metric', async
   expect(gameItems).toEqual(['热门高分拼图', '奇幻拼图']);
 });
 
+test('mobile game category filter dialog filters by play type', async () => {
+  const user = userEvent.setup();
+  const match3dEntry = {
+    ...puzzlePublicEntry,
+    sourceType: 'match3d',
+    workId: 'match3d-work-category-filter',
+    profileId: 'match3d-profile-category-filter',
+    publicWorkCode: 'M3D-FILTER',
+    worldName: '奇幻抓鹅',
+    subtitle: '抓大鹅关卡',
+    summaryText: '一组用于筛选的抓大鹅作品。',
+    playCount: 6,
+    remixCount: 0,
+    likeCount: 1,
+    publishedAt: '2026-04-26T10:00:00.000Z',
+    updatedAt: '2026-04-26T10:00:00.000Z',
+  } satisfies PlatformPublicGalleryCard;
+
+  renderStatefulLoggedOutHomeView({
+    latestEntries: [puzzlePublicEntry, match3dEntry],
+  });
+
+  await user.click(screen.getByRole('button', { name: '发现' }));
+  await user.click(screen.getByRole('button', { name: '分类' }));
+  await user.click(screen.getByRole('button', { name: '奇幻' }));
+
+  expect(screen.getByRole('button', { name: /奇幻拼图，试玩/u })).toBeTruthy();
+  expect(screen.getByRole('button', { name: /奇幻抓鹅，进入/u })).toBeTruthy();
+
+  await user.click(screen.getByRole('button', { name: /筛选/u }));
+  const filterDialog = await screen.findByRole('dialog', {
+    name: '分类筛选',
+  });
+
+  await user.click(within(filterDialog).getByRole('button', { name: '抓鹅' }));
+
+  expect(
+    screen.queryByRole('button', { name: /奇幻拼图，试玩/u }),
+  ).toBeNull();
+  expect(screen.getByRole('button', { name: /奇幻抓鹅，进入/u })).toBeTruthy();
+});
+
 test('bottom category tab becomes ranking and switches ranking metrics', async () => {
   const user = userEvent.setup();