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/verify.md

@@ -0,0 +1,17 @@
+---
+description: Visual and logic verification of the feature.
+---
+
+## Antigravity QA Instructions
+
+1. **Environment**: Spin up the app in the Integrated Terminal/Browser.
+2. **Visual Audit**:
+   - Navigate to the new feature.
+   - **TAKE SCREENSHOT**.
+   - Compare screenshot to the `spec.md` requirements.
+   - Report: "Match" or "Discrepancy".
+3. **Logic Audit**:
+   - Run the "Happy Path" user journey.
+   - Check console logs for errors.
+4. **Report**:
+   - Generate a **Release Readiness Artifact**.