Warren 37f5da7d6c Implement VFS Deduplication (block-level) ...

- Add DedupStore with content-addressable storage:
  - SHA-256 hash-based block storage
  - Reference counting for block lifecycle
  - dedup_file() and restore_file() operations
  - DedupManifest for file reconstruction
  - DedupStats for storage statistics
- Add VfsDedupConfig:
  - block_size (default 4KB)
  - min_file_size threshold
  - store_path for dedup directory
- Add hex crate for hash encoding
- Block-level dedup foundation for SMB/ZFS

All 229 tests pass.

2026-06-20 22:39:25 +08:00

3.1 KiB

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