fix: correct Docker setup, SDK async API, and docs

- Dockerfile: use explicit uvicorn command (uv run start fails without package mode)
- docker-compose: mount claude-auth volume to /root/.claude (worker runs as root)
- worker: update to Claude Code SDK async iterable API (query() returns iterator, not array)
- main.py: fix docs_url from /doc to /docs
- README: correct login instructions (exec not run --rm), add production URLs
- Add CLAUDE.md with full project documentation

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

README.md

@@ -24,16 +24,18 @@ Due container Docker:
    # Edita .env: imposta API_KEY e le altre variabili
    ```
 
-2. Autentica Claude Code nel worker:
-   ```bash
-   docker compose run --rm claude-worker npx claude login
-   ```
-
-3. Avvia il sistema:
+2. Avvia il sistema:
    ```bash
    docker compose up -d
    ```
 
+3. Autentica Claude Code nel worker (nel container attivo, non con `run --rm`):
+   ```bash
+   docker compose exec claude-worker npx claude login
+   ```
+   Le credenziali vengono salvate nel volume Docker `claude-auth` (mount: `/root/.claude`)
+   e persistono tra riavvii e rebuild. Si perdono solo con `docker compose down -v`.
+
 4. Verifica:
    ```bash
    curl -H "X-Api-Key: TUA_KEY" http://localhost:8000/api/health
@@ -56,7 +58,9 @@ uv run pytest -v
 
 ## API
 
-Documentazione completa: `http://localhost:8000/doc`
+Documentazione interattiva:
+- Swagger UI: `https://opus-agent.tielogic.xyz/docs`
+- ReDoc: `https://opus-agent.tielogic.xyz/redoc`
 
 ### Esempio d'uso