Certify loaded canvas scopes and publish completeness with runtime queries

src/lib/api.ts

@@ -64,6 +64,7 @@ export const errorText = (error: unknown) => {
     unsupported_model_stream: "当前画布加载格式暂不受支持，请更新后重试。",
     model_stream_budget: "画布数据量超过当前加载上限，请联系支持。",
     load_snapshot_changed: "加载期间画布快照发生变化，请重新加载。",
+    invalid_model_coverage: "画布的加载范围信息不一致，请重新加载。",
     model_loading: "画布尚在加载，请等待加载完成后编辑。",
     identity_changed: "账户已变化，当前画布已停止同步，请重新打开。",
     engine_closing: "画布正在关闭，本地修改会保留用于恢复。",