Matthew Raymer 2f495f6767 feat: minimal stabilization of migration 004 with atomic execution ...

- Single SQL source: Define MIG_004_SQL constant to eliminate duplicate SQL definitions
- Atomic execution: Add BEGIN IMMEDIATE/COMMIT/ROLLBACK around migration execution
- Name-only check: Skip migrations already recorded in migrations table
- Guarded operations: Replace table-wide cleanups with conditional UPDATE/DELETE

Changes:
- migration.ts: Extract migration 004 SQL into MIG_004_SQL constant
- migration.ts: Use guarded DELETE/UPDATE to prevent accidental data loss
- migrationService.ts: Wrap migration execution in explicit transactions
- migrationService.ts: Reorder checks to prioritize name-only skipping

Benefits:
- Prevents partial migration failures from corrupting database state
- Eliminates SQL duplication and maintenance overhead
- Maintains existing APIs and logging behavior
- Reduces risk of data loss during migration execution

Test results: All migration tests passing, ID generation working correctly

2025-09-17 06:52:43 +00:00

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migration.ts

feat: minimal stabilization of migration 004 with atomic execution

2025-09-17 06:52:43 +00:00