Resolves#169
- Add simple IntegrityError handling in handle_move function
- Use temporary path strategy to resolve file swap conflicts
- Add comprehensive test coverage for move conflict scenarios
- Maintain backward compatibility for all other error types
This fixes the "UNIQUE constraint failed: entity.file_path, entity.project_id"
error that occurred during sync operations when files were swapped or moved
to locations already occupied by other entities.
Co-authored-by: Paul Hernandez <phernandez@users.noreply.github.com>
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