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

test.js

@@ -37,10 +37,14 @@ const tests = [
   { name: "Home", url: "/", check: (d) => d.results?.spotlights || d.results?.trending },
   { name: "Search", url: "/search?keyword=naruto", check: (d) => d.results?.data },
   { name: "Info", url: "/info?id=one-piece-odmau", check: (d) => d.results?.title },
+  { name: "Info External IDs", url: "/info?id=one-piece-odmau", check: (d) => d.results?.externalIds?.malId },
   { name: "Episodes", url: "/episodes/one-piece-odmau", check: (d) => d.results?.episodes },
+  { name: "Latest Episode", url: "/episodes/latest?slug=one-piece-odmau", check: (d) => d.results?.latest?.episode_no && d.results?.latest?.server_ids },
   { name: "Servers", url: "/servers?ids=1", check: (d) => d.results, optional: true },
   // Streaming
   { name: "Stream", url: "/watch?slug=one-piece-odmau&ep=1", check: (d) => d.results?.servers || d.results?.episodeNumber },
+  { name: "Embed Providers", url: "/stream/embeds?slug=one-piece-odmau&ep=1", check: (d) => d.results?.providers?.length > 0 },
+  { name: "Embed (direct MAL)", url: "/stream/embeds?mal=21&ep=1&provider=megavid", check: (d) => d.results?.providers?.[0]?.url?.includes("megavid.buzz") },
 
 
   // Discovery endpoints