fix(prefab): 修复预制体编辑模式的保存与退出，使用原生 scene://edit-mode 接口替代无效的 IPC 广播，更新相关使用文档与安全规定

.agent/workflows/refactor.md

@@ -0,0 +1,14 @@
+---
+description: Clean up legacy code before feature work.
+---
+
+## User Input
+
+$ARGUMENTS
+
+## Instructions
+
+1. **Audit**: Scan the target directory `$ARGUMENTS`.
+2. **Constitution Check**: Compare against `/memory/constitution.md`.
+3. **Refactor**: Apply modern patterns (e.g., "Convert Promises to Async/Await") WITHOUT changing business logic.
+4. **Verify**: Run existing tests to ensure no regression.