删除空的 run-trace 用例文件与其注册

- 删除 apps/ai-game-creator-shell/tests/appSurface/project-preview/run-trace.suite.ts（只剩一个空的 registerProjectRunTraceTests）
- apps/ai-game-creator-shell/tests/appSurface/project-preview.suite.ts 去掉对应 import 与调用
- 说明：该文件被清空后 parseAgentRunTrace 与 formatAgentRunStatus 已没有用例覆盖，重新补测属于后续单独任务，本提交只清理空壳

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

@@ -1,9 +1,7 @@
 import { registerProjectPreviewShortcutTests } from './project-preview/preview-shortcuts.suite';
 import { registerProjectRunHistoryTests } from './project-preview/run-history.suite';
-import { registerProjectRunTraceTests } from './project-preview/run-trace.suite';
 
 export function registerProjectPreviewAndRunHistoryTests() {
   registerProjectPreviewShortcutTests();
-  registerProjectRunTraceTests();
   registerProjectRunHistoryTests();
 }

apps/ai-game-creator-shell/tests/appSurface/project-preview/run-trace.suite.ts

@@ -1 +0,0 @@
-export function registerProjectRunTraceTests() {}