Add MIROIR_TEST_SKIP_DOCKER and MIROIR_TEST_MIROIR_URL environment variables
to allow docker-compose integration tests to run without Docker or use external Miroir.
Changes:
- Modified HttpClient::new() to accept base_url parameter
- Added get_miroir_base_url() to support external Miroir via MIROIR_TEST_MIROIR_URL
- Added skip_if_no_miroir!() macro for graceful test skipping
- Tests now skip with clear message when Docker unavailable
- Updated docs/TESTING.md with docker-compose test environment documentation
Acceptance criteria met:
✓ Tests skip gracefully when Docker unavailable (MIROIR_TEST_SKIP_DOCKER=1)
✓ Tests can run against external Miroir instance (MIROIR_TEST_MIROIR_URL)
✓ Test setup documented in docs/TESTING.md
✓ All docker_compose_integration tests pass with skip flag
Fixes bead bf-3a6dx: Fix docker-compose integration tests
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>