workinf_Blender_Wasm/docs/corrective/C2-003-undo-redo-save-invariants.md

C2-003 undo_redo_save_invariants

状态：done 计划：BLENDER_WASM_CORRECTIVE_TASK_PLAN 阶段：P2 Gate：G2 依赖：C2-002 lifecycleStatus：done blockedBy：none writeScope：production_pilot queueMutationAllowed：false

目标

为 atomic Main mutations 增加 bounded undo/redo history、dirty tracking 和 save/reopen invariant。undo/redo 必须恢复完整 snapshot 与 revision，save 清除 dirty 状态，reopen 必须恢复最后保存的 snapshot；失败命令不得创建 history entry。

输入

• web/protocol/corrective-main-transaction.ts
• web/protocol/corrective-command-registry.ts
• tests/golden/corrective/C2-002/manifest.json
• tests/golden/corrective/C1-002/result-schema.json
• tests/golden/corrective/C1-002/error-status-table.json

交付

• bounded history store with undo/redo/save/reopen operations。
• focused positive/negative/persistence tests and deterministic receipts。
• protected-hash, typecheck, governance, manifest and status evidence。
• 不修改旧 M16 queue、manifest、registry、catalog、index 或历史 evidence。