- Add gotestsum for real-time test progress visibility
- Parallelize 174 tests across 14 files for faster execution
- Add -short mode support skipping 21 heavy integration tests
- Create testutil/db.go helper for future transaction rollbacks
- Fix data race in notification_service_test.go
- Fix 4 CrowdSec LAPI test failures with permissive validator
Performance improvements:
- Tests now run in parallel (174 tests with t.Parallel())
- Quick feedback loop via -short mode
- Zero race conditions detected
- Coverage maintained at 87.7%
Closes test optimization initiative
