fix(service-party-app): fix TypeScript compilation errors

- Fix import/export consistency (use default exports)
- Add CSS module type declarations
- Fix ElectronAPI type definitions (ListSharesResult, ExportShareResult)
- Fix null checks for sessionInfo and session
- Change build script to use npx tsc

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/mpc-system/services/service-party-app/package.json

@@ -7,7 +7,7 @@
     "dev": "concurrently \"npm run dev:vite\" \"npm run dev:electron\"",
     "dev:vite": "vite",
     "dev:electron": "wait-on http://localhost:5173 && electron .",
-    "build": "tsc && vite build && electron-builder",
+    "build": "npx tsc && vite build && electron-builder",
     "build:win": "npm run build -- --win",
     "build:mac": "npm run build -- --mac",
     "build:linux": "npm run build -- --linux",

backend/mpc-system/services/service-party-app/src/App.tsx

@@ -1,10 +1,10 @@
 import { Routes, Route, Navigate } from 'react-router-dom';
-import { Layout } from './components/Layout';
-import { Home } from './pages/Home';
-import { Join } from './pages/Join';
-import { Create } from './pages/Create';
-import { Session } from './pages/Session';
-import { Settings } from './pages/Settings';
+import Layout from './components/Layout';
+import Home from './pages/Home';
+import Join from './pages/Join';
+import Create from './pages/Create';
+import Session from './pages/Session';
+import Settings from './pages/Settings';
 
 function App() {
   return (

backend/mpc-system/services/service-party-app/src/components/Layout.tsx

@@ -13,7 +13,7 @@ const navItems = [
   { path: '/settings', label: '设置', icon: '⚙️' },
 ];
 
-export function Layout({ children }: LayoutProps) {
+export default function Layout({ children }: LayoutProps) {
   const location = useLocation();
 
   return (

backend/mpc-system/services/service-party-app/src/pages/Home.tsx

@@ -14,7 +14,7 @@ interface ShareItem {
   };
 }
 
-export function Home() {
+export default function Home() {
   const navigate = useNavigate();
   const [shares, setShares] = useState<ShareItem[]>([]);
   const [loading, setLoading] = useState(true);

backend/mpc-system/services/service-party-app/src/pages/Join.tsx

@@ -40,7 +40,7 @@ export default function Join() {
     try {
       // 解析邀请码获取会话信息
       const result = await window.electronAPI.grpc.validateInviteCode(codeToValidate);
-      if (result.success) {
+      if (result.success && result.sessionInfo) {
         setSessionInfo(result.sessionInfo);
         setStep('confirm');
       } else {

backend/mpc-system/services/service-party-app/src/pages/Session.tsx

@@ -34,7 +34,7 @@ export default function Session() {
 
     try {
       const result = await window.electronAPI.grpc.getSessionStatus(sessionId);
-      if (result.success) {
+      if (result.success && result.session) {
         setSession(result.session);
       } else {
         setError(result.error || '获取会话状态失败');

backend/mpc-system/services/service-party-app/src/types/css.d.ts

@@ -0,0 +1,10 @@
+// CSS 模块类型声明
+declare module '*.module.css' {
+  const classes: { [key: string]: string };
+  export default classes;
+}
+
+declare module '*.css' {
+  const content: string;
+  export default content;
+}

backend/mpc-system/services/service-party-app/src/types/electron.d.ts

@@ -94,6 +94,19 @@ interface SessionEvent {
   error?: string;
 }
 
+interface ListSharesResult {
+  success: boolean;
+  data?: ShareEntry[];
+  error?: string;
+}
+
+interface ExportShareResult {
+  success: boolean;
+  data?: ArrayBuffer;
+  filePath?: string;
+  error?: string;
+}
+
 interface ElectronAPI {
   grpc: {
     createSession: (params: CreateSessionParams) => Promise<CreateSessionResult>;
@@ -104,9 +117,9 @@ interface ElectronAPI {
     testConnection: (url: string) => Promise<TestConnectionResult>;
   };
   storage: {
-    listShares: () => Promise<ShareEntry[]>;
+    listShares: () => Promise<ListSharesResult>;
     getShare: (id: string, password: string) => Promise<ShareEntry | null>;
-    exportShare: (id: string, password: string) => Promise<{ success: boolean; filePath?: string; error?: string }>;
+    exportShare: (id: string, password: string) => Promise<ExportShareResult>;
     importShare: (filePath: string, password: string) => Promise<{ success: boolean; share?: ShareEntry; error?: string }>;
     deleteShare: (id: string) => Promise<{ success: boolean; error?: string }>;
     getSettings: () => Promise<Settings | null>;