Add configurable rate limiting for dev/stage environments

- Add ORCHARD_LOGIN_RATE_LIMIT env var to Helm deployment template
- Set relaxed rate limit (1000/minute) for dev/stage deployments
- Production keeps strict default (5/minute) for security
- Re-enable auth tests in CI (no longer excluded by marker)
- Update test docstrings to reflect rate limit configuration

.gitlab-ci.yml

@@ -52,13 +52,13 @@ kics:
     - pip install --index-url "$PIP_INDEX_URL" pytest pytest-asyncio httpx
   script:
     - cd backend
-    # Run full integration test suite, excluding large/slow tests and auth-intensive tests
-    # Auth-intensive tests make many login requests which trigger rate limiting on deployed environments
+    # Run full integration test suite, excluding large/slow tests
     # ORCHARD_TEST_URL tells the tests which server to connect to
+    # Note: Auth tests work because dev/stage deployments have relaxed rate limits
     - |
       python -m pytest tests/integration/ -v \
         --junitxml=integration-report.xml \
-        -m "not large and not slow and not auth_intensive" \
+        -m "not large and not slow" \
         --tb=short
   artifacts:
     when: always