补齐跨工程插件启动的界面测试响应

为五个项目打开与对话恢复测试提供插件项目绑定及空插件列表响应

保留原有业务状态断言和产品错误提示，修复完整界面门禁暴露的测试桩缺口

apps/ai-game-creator-shell/tests/appSurface/project-conversation.suite.ts

@@ -516,6 +516,8 @@ export function registerProjectConversationTests() {
     );
     const invoke = vi.fn(
       async (command: string, args?: Record<string, unknown>) => {
+        if (command === 'set_agc_plugin_project_path') return null;
+        if (command === 'list_agc_plugins') return [];
         if (command === 'append_local_permission_log') {
           return {};
         }
@@ -580,6 +582,8 @@ export function registerProjectConversationTests() {
     );
     const invoke = vi.fn(
       async (command: string, args?: Record<string, unknown>) => {
+        if (command === 'set_agc_plugin_project_path') return null;
+        if (command === 'list_agc_plugins') return [];
         if (command === 'append_local_permission_log') {
           return {};
         }
@@ -630,6 +634,8 @@ export function registerProjectConversationTests() {
     );
     const invoke = vi.fn(
       async (command: string, args?: Record<string, unknown>) => {
+        if (command === 'set_agc_plugin_project_path') return null;
+        if (command === 'list_agc_plugins') return [];
         if (command === 'append_local_permission_log') {
           return {};
         }
@@ -3110,6 +3116,8 @@ export function registerProjectConversationTests() {
     });
     const invoke = vi.fn(
       async (command: string, args?: Record<string, unknown>) => {
+        if (command === 'set_agc_plugin_project_path') return null;
+        if (command === 'list_agc_plugins') return [];
         const targetProjectPath = String(args?.projectPath ?? '');
         if (command === 'append_local_permission_log') {
           return {};

apps/ai-game-creator-shell/tests/appSurface/project-development.suite.ts

@@ -10148,6 +10148,8 @@ export function registerProjectWorkbenchNavigationTests() {
     );
     const invoke = vi.fn(
       async (command: string, args?: Record<string, unknown>) => {
+        if (command === 'set_agc_plugin_project_path') return null;
+        if (command === 'list_agc_plugins') return [];
         if (command === 'append_local_permission_log') {
           return {};
         }