Unit Tests / test (push) Successful in 9s
## Summary - Supports [chat_web_app#22](ai_ml_operations/chat_web_app#22) - Always merge Capacitor WebView origins (`https://localhost`, `capacitor://localhost`, `http://localhost`) into `CORS_ALLOWED_ORIGINS` and `CSRF_TRUSTED_ORIGINS` - Keep `CORS_ALLOW_CREDENTIALS = False` (JWT header-only; no cookie credentials) ## Test plan - [x] `uv run python manage.py test chat_backend.tests.test_settings_cors` - [ ] OPTIONS preflight from `https://localhost` / `capacitor://localhost` against prod/beta with `CORS_ORIGIN_ALLOW_ALL=false` - [ ] Authenticated JWT GET/POST from Capacitor shell after FE #22 landsReviewed-on: #19