feat: upgrade to v2.0.0 with multi-mirror fallback, new endpoints, and LRU cache

- Add multi-mirror fallback system with 5 mirror domains
- Add LRU cache with configurable TTL per endpoint
- Add response compression (gzip)
- Add Seasons endpoint (/api/seasons/:id)
- Add Watch Order endpoint (/api/watch-order/:id)
- Add Latest Updated endpoint (/api/latest-updated)
- Add Download endpoint (/api/download)
- Add cache stats endpoint (/api/cache/stats)
- Add mirror status/reset endpoints (/api/mirrors, /api/mirrors/reset)
- Add configurable rate limiting with X-RateLimit headers
- Add request timeouts and entity too large handling
- Update documentation with all new endpoints
- Update CHANGELOG.md with v2.0.0 entry
- Update package.json version to 2.0.0
- Add 6 AI agent prompts for development

docs/index.md

@@ -57,9 +57,11 @@ curl "https://anikototvapi.vercel.app/api/info?id=road-of-naruto-ggjw8"
 
 ## Features
 
-- **30 Endpoints** — Home, search, info, episodes, streaming, schedule, and more
+- **33 Endpoints** — Home, search, info, episodes, streaming, schedule, seasons, watch order, download, and more
 - **No API Key** — Just make requests, no registration needed
-- **In-Memory Cache** — 5-minute TTL for fast responses
+- **LRU Cache** — Configurable TTL per endpoint type (3min to 60min)
+- **Multi-Mirror Fallback** — Automatic failover across 5 mirror domains
+- **Response Compression** — Gzip compression for faster responses
 - **CORS Enabled** — Access from any domain
 - **JSON Responses** — Standardized `{success, results}` format
 
@@ -92,7 +94,7 @@ Error responses:
 
 ## Rate Limiting
 
-There are no explicit rate limits, but the API uses a 5-minute in-memory cache. Repeated requests for the same data will be served from cache.
+Rate limiting is configurable via environment variables (`RATE_LIMIT`, `RATE_WINDOW`). Default is 100 requests per 60 seconds per IP. Includes `X-RateLimit-Limit` and `X-RateLimit-Remaining` headers.
 
 ## Disclaimer