feat(13-03): add cloud operations service and reconnect/health/test routes
- Create backend/services/cloud_operations.py as the single Phase 13 orchestration seam:
get_connection_health (D-12), test_connection (D-13), reconnect_connection (CONN-01/02/03,
D-14), disconnect_connection (D-16, explicit CloudItem cascade for SQLite compatibility)
- Add POST /connections/{id}/reconnect route (CONN-01/02/03, D-14)
- Add GET /connections/{id}/health route (D-12, T-13-02)
- Add POST /connections/{id}/test route (D-13, T-13-02)
- Update DELETE /connections/{id} to use service-layer disconnect with explicit
CloudItem deletion (D-16; covers FK-cascade-less environments like SQLite tests)
- Fix (Rule 2 - T-13-02): add _scrub_audit_metadata() to admin audit log API to
remove credential fields before returning audit rows to admin callers
- All 14 reconnect tests pass + 110 provider-contract tests pass
- Pre-existing failures in test_cloud_mutations and test_extractor are unrelated
curo1305
6784d3bdb7