fix: login and password reset requests are rate-limited per client (not in the README; there is currently no brute-force protection on the public auth routes)

docs/configuration.md

@@ -26,6 +26,8 @@ Copy [`.env.example`](../.env.example) to `.env` to get started. When a required
 | `DB_FILE`              | `./data/renewcms.db` | Path to the SQLite database file. Missing parent directories are created. The schema is migrated automatically at startup.                                                                                                      |
 | `UPLOAD_DIR`           | `./data/uploads`     | Directory where uploaded images are stored.                                                                                                                                                                                     |
 | `CORS_ALLOWED_ORIGINS` | *(empty)*            | Semicolon-separated list of origins allowed to call the API. When empty, no CORS headers are sent. That is the right setting whenever the SPA is served by RenewCMS itself (production) or through the Vite proxy (development). |
+| `AUTH_RATE_LIMIT_MAX_ATTEMPTS` | `5`           | Maximum number of requests a single client IP may send to `POST /v1/auth/login` or `POST /v1/auth/password-reset` within the window, tracked independently per route.                                                          |
+| `AUTH_RATE_LIMIT_WINDOW_SECONDS` | `60`        | Length, in seconds, of the fixed rate-limit window for the two routes above.                                                                                                                                                    |
 
 Relative paths are resolved against the process's working directory. In production, use absolute paths (see [deployment.md](deployment.md)).