feat: v2.5.1 — domain sync, spotlight fix, embed providers, info IDs, latest-episode checker, full docs pass

- Sync mirror domains with official hub (anikoto.site): replace dead
  anikoto.se with official anikototv.se (dataUrl.js, render.yaml, README)
- Fix redesigned #hotest spotlight carousel selectors in homeInfo and
  spotlight extractors (dual-selector fallback for old layout)
- New GET /api/stream/embeds: iframe-ready Megavid/AniXo/MegaPlay URLs
  that bypass Cloudflare; ?slug= auto-resolves MAL/AniList IDs (cached),
  or pass ?mal=/?anilist= directly with zero scraping
- GET /api/info now returns externalIds { animeId, malId, anilistId }
  for direct feed into /api/stream/embeds (best-effort, 60min cache)
- New GET /api/episodes/latest?slug=: newest-episode checker for bot
  polling — latest episode + counts only (10min cache), registered
  before /episodes/:id so the literal path wins
- Top rankings ?sort=day|week|month verified already supported (docs)
- Full repo-style documentation on all new modules (box headers, FEATURE
  markers, NOTE/TIP inline notes, JSDoc, footers)
- Diagnostic sweep: all counts synced to 40 endpoints / 30 handlers /
  29 scrapers, stale badges and sample responses fixed, render.yaml EOF,
  Dockerfile node:18-alpine (EOL) -> node:22-alpine
- Tests: 38 passed / 0 failed / 2 optional skips; 77 JS files syntax-OK

package.json

@@ -1,6 +1,6 @@
 {
   "name": "AniKotoAPI",
-  "version": "2.4.1",
+  "version": "2.5.1",
   "description": "A restful API to provide all information about anime from anikototv.to",
   "main": "./server.js",
   "scripts": {