Initial commit: Full Crawl API implementation

TODO.md

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+# TODO List Completo — Crawl API
+
+## ✅ COMPLETO — Todo implementado
+
+### Core API
+- [x] 10 endpoints REST (9 crawl + 1 AI extraction)
+- [x] PostgreSQL + sqlx con migraciones
+- [x] Redis queue + caching
+- [x] S3/MinIO file storage
+
+### Auth & Users
+- [x] Email/password + bcrypt + JWT
+- [x] Google OAuth (exchange real de tokens)
+- [x] API key management
+- [x] Team/Organization accounts
+
+### Workers & Queue
+- [x] Distributed worker con Redis BLPOP
+- [x] Retry con backoff exponencial
+- [x] Dead Letter Queue
+- [x] Browser Pool (5x10)
+
+### Scraping Avanzado
+- [x] Stealth mode (anti-bot)
+- [x] Proxy rotation
+- [x] CAPTCHA solving (CapSolver)
+- [x] Cookie/session persistence
+- [x] Mobile emulation
+- [x] Infinite scroll
+- [x] Custom headers
+
+### Billing
+- [x] Stripe checkout funcional
+- [x] Stripe webhooks reales
+- [x] Plans + credits system
+
+### Observabilidad
+- [x] Prometheus metrics
+- [x] Grafana dashboard
+- [x] Sentry error tracking
+- [x] Structured JSON logging
+- [x] Correlation IDs
+- [x] WebSocket live logs
+
+### Seguridad
+- [x] Input validation (URL, webhook, size)
+- [x] Rate limiting por API key
+- [x] Rate limiting por IP
+- [x] IP auto-blocking
+- [x] SSRF protection
+
+### Infraestructura
+- [x] Docker Compose
+- [x] Kubernetes manifests
+- [x] HPA auto-scaling
+- [x] Health checks (liveness/readiness/startup)
+- [x] SSL/TLS con cert-manager + Let's Encrypt
+
+### Secrets Management
+- [x] Multi-provider: Env → Vault → AWS Secrets Manager
+- [x] Fallback chain
+
+### CI/CD
+- [x] GitHub Actions CI (fmt, clippy, test, audit)
+- [x] Docker build + push
+- [x] Deploy staging
+- [x] Deploy production (tags)
+- [x] Smoke tests post-deploy
+
+### Frontend
+- [x] Landing page
+- [x] API Documentation
+- [x] Interactive Playground
+- [x] Billing page
+- [x] Dashboard
+
+### Testing
+- [x] Unit tests
+- [x] E2E tests (Playwright)
+- [x] Load tests (k6 smoke/load/stress/screenshot)
+
+### Legal
+- [x] Terms of Service
+- [x] Privacy Policy
+- [x] Data Processing Agreement
+
+---
+
+## Estado final
+
+**100% completo.** El proyecto está listo para producción.