Warren 837ffa923d Implement SMB Previous versions (shadow copy) at VFS layer ...

- Add VfsPreviousVersion struct (snapshot_name, gmt_token, created, size)
- Add VfsBackend methods:
  - list_previous_versions() - enumerate snapshot versions
  - open_previous_version() - open file from snapshot by GMT token
  - restore_previous_version() - restore file from snapshot
- LocalFs implementation:
  - systemtime_to_gmt_token() - convert SystemTime to @GMT-YYYY.MM.DD-HH.MM.SS
  - scan .snapshots directory for matching versions
  - use existing restore_snapshot() for restoration
- Foundation for SMB shadow copy (@GMT- token support)

All 229 tests pass.

2026-06-20 22:26:58 +08:00

..

src

Implement SMB Previous versions (shadow copy) at VFS layer

2026-06-20 22:26:58 +08:00

tests

P0: exit-status for subsystem, improved error msgs, integration test suite

2026-06-20 16:40:29 +08:00

Cargo.toml

Implement VFS compression support (ZSTD)

2026-06-20 22:21:50 +08:00