feat(block): block-level COW overlay with dirty bitmap tracking#5

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feat/block-overlay-cow

Commits on Mar 20, 2026

feat(block): add dirty bitmap and sync overlay file engine
meAmitPatil
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feat(block): add overlay engine configuration and API surface
meAmitPatil
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feat(snapshot): persist overlay dirty bitmap on snapshot save/restore
meAmitPatil
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feat(snapshot): add delta file format for efficient dirty block persistence
meAmitPatil
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feat(snapshot): enable fast VM cloning via delta application on restore
meAmitPatil
committed
feat(block): add DISCARD support for overlay devices to reclaim space
meAmitPatil
committed
feat(block): reject hot-update for overlay devices to prevent data corruption
meAmitPatil
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docs(swagger): add overlay, base_path, and block_delta_dir to API schema
meAmitPatil
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Commits on Mar 24, 2026

fix(block): address code review feedback from PR #5
meAmitPatil
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