- bd-175: Added comprehensive test coverage for internal/storage/memory backend
- All CRUD operations, dependencies, labels, comments
- Thread safety with race detection
- LoadFromIssues and counter sync
- Fixed batch duplicate detection
- bd-176: Documented corruption vs collision distinction
- Added FAQ entry explaining logical vs physical corruption
- Updated TROUBLESHOOTING with clear guidance
- Clarified when to use collision resolution vs reimport
- bd-177: Added prefix validation in SQLite mode
- Validates explicit IDs match configured prefix
- Works in both CreateIssue and CreateIssues
- Comprehensive tests for single and batch operations