METRICS:
- Tests: 5 tests
- DB setups removed: 1 → 1 shared
- Tests needing DB: 1/5
- Savings: setupTestDB() → newTestStore()
DETAILS:
- TestFindDuplicateGroups: Pure in-memory logic (no DB)
- TestChooseMergeTarget: Pure in-memory logic (no DB)
- TestCountReferences: Pure in-memory logic (no DB)
- TestDuplicateGroupsWithDifferentStatuses: Pure in-memory (no DB)
- TestDuplicatesIntegration: Uses shared DB (was: setupTestDB)
Also fixed: Removed hardcoded IDs, let DB assign them.
All 5 tests pass!
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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