- Replace monolithic store.test.ts with focused suites for create, update, upsert, movement, scheduling, comments, activity, and resilience behavior
- Add parsing and snapshot-specific test files to isolate coverage for conversion and serialization paths
- Keep shared store test harness in store-test-helpers.ts and migrate existing coverage to use the split suite structure
- Remove legacy monolith test file after preserving and redistributing coverage across new suite files
Fusion-Task-Id: FN-4021
cbd37d4e08