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説明
Difficulty: ⭐⭐ (Easy-Medium)
Dependencies: Issue #5
Component: Storage
Description: Implement a proper database migration system to handle schema evolution gracefully as Knetz develops. Use a migration framework like golang-migrate or implement a custom solution that tracks applied migrations, add version tracking to know which migrations have been applied to each database, and support both forward migrations for upgrades and rollback capabilities for downgrades when needed. Implement migration validation that checks for conflicts and data integrity issues before applying changes, create comprehensive data migration scripts for transforming existing data to new schemas, and add migration status reporting that shows which migrations are pending or applied. Include automated migration testing in CI/CD, support migration dry-run mode to preview changes, and provide clear migration documentation explaining what each migration does and its impact.
Acceptance Criteria:
- Implement migration framework
- Add version tracking for schema changes
- Support rollback capabilities
- Add migration validation
- Implement data migration scripts
- Add migration status reporting
Why Now: Establishes data integrity foundation for all storage operations.