workinf_Blender_Wasm/docs/status/W-043.md

W-043 Status

status: done task: 自动保存和快照策略

AutosaveScheduler debounces a dirty project and submits the current engine buffer through StorageWorker after 1.5 seconds without triggering a download. The React Save button reuses the same persistence path before exporting a download. A browser regression confirms the dirty marker returns to saved.

Every ten commands and every explicit save now retain a SHA-256 verified blend snapshot. The StorageWorker enforces count and total-byte limits and can list/read retained revisions. Large-file writes remain Worker-isolated and never block the renderer thread.