forbes-0023 9f347e7898 feat(storage): implement filesystem backend ...

Implement FilesystemStore satisfying the FileStore interface for local
filesystem storage, replacing MinIO for simpler deployments.

- Atomic writes via temp file + os.Rename (no partial files)
- SHA-256 checksum computed on Put via io.MultiWriter
- Get/GetVersion return os.File (GetVersion ignores versionID)
- Delete is idempotent (no error if file missing)
- Copy uses same atomic write pattern
- PresignPut returns ErrPresignNotSupported
- Ping verifies root directory is writable
- Wire NewFilesystemStore in main.go backend switch
- 14 unit tests covering all methods including atomicity

Closes #127

2026-02-17 11:49:42 -06:00

6.4 KiB

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