Delete now performs soft-delete (status='user_deleted') instead of physical deletion.
Removes storage content deletion — files are preserved on disk after soft-delete.
Second delete on already-deleted file returns nil (idempotent).
Add tests: SoftDelete, SoftDeleteKeepsStorage, SoftDeleteIdempotent, SoftDeleteForbidden.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
- Initialize slog in the serve command with terminal/file support
- Introduce `AppError` with HTTP status for unified service-layer errors
- Replace ad-hoc `api.Error` calls with `api.RespondError`
- Wrap internal errors with `model.NewInternalError` and add reference
IDs
- Add `RequestID` middleware and switch router from `gin.Default` to
`gin.New`
- Implement FileHandler with CRUD operations for files/directories
- Add FileService with business logic and SHA-256 hashing
- Create LocalStorage backend for filesystem persistence
- Add database repository with pagination and name uniqueness
constraints
- Configure max upload size in storage settings
- Include comprehensive tests for all layers
ld