- Update Makefile with test-coverage and verify targets
- Add build.sh script for cross-platform builds with SHA256 checksums
- Implement integration tests for full workflow (add/list/get/update/export/delete)
- Add config integration test
- Update project state documentation
- Add export command with JSON file output and size summary
- Add import command with replace/merge strategies and dry-run preview
- Add integration test for export/import round-trip via storage layer
- Update project state documentation