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integration_tests/README.md

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+Integration tests in this folder are intended to run against the project's
+configured MySQL backend, so the API flow is exercised with a real relational
+database instead of in-memory fixtures.
+
+Recommended command:
+
+```bash
+DJANGO_SETTINGS_MODULE=config.settings python manage.py test integration_tests
+```
+
+Notes:
+- Django will still create an isolated test database on the same MySQL server
+  (for example `test_ai` when `DB_NAME=ai`).
+- External AI providers, remote sensing calls, and Celery workers are stubbed
+  inside the tests so the suite stays deterministic while database writes stay
+  real.
+- The tests in this folder use the full `config.urls` router, not the reduced
+  `config.test_urls` router.
+