Fix frontend build dependencies

frontend/package-lock.json

@@ -31,6 +31,7 @@
         "lucide-react": "^0.544.0",
         "react": "^19.1.1",
         "react-dom": "^19.1.1",
+        "react-is": "^19.2.0",
         "react-markdown": "^10.1.0",
         "recharts": "^3.2.1",
         "remark-gfm": "^4.0.1",
@@ -11884,8 +11885,7 @@
       "version": "19.2.4",
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-19.2.4.tgz",
       "integrity": "sha512-W+EWGn2v0ApPKgKKCy/7s7WHXkboGcsrXE+2joLyVxkbyVQfO3MUEaUQDHoSmb8TFFrSKYa9mw64WZHNHSDzYA==",
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/react-markdown": {
       "version": "10.1.0",

frontend/package.json

@@ -40,6 +40,7 @@
     "lucide-react": "^0.544.0",
     "react": "^19.1.1",
     "react-dom": "^19.1.1",
+    "react-is": "^19.2.0",
     "react-markdown": "^10.1.0",
     "recharts": "^3.2.1",
     "remark-gfm": "^4.0.1",

start.sh

@@ -174,7 +174,11 @@ build_frontend() {
     echo ""
     echo -e "${CYAN}构建前端...${NC}"
     if [ -d "frontend" ] && command -v npm >/dev/null 2>&1; then
-        (cd frontend && npm install --legacy-peer-deps && npm run build)
+        if [ -f "frontend/package-lock.json" ]; then
+            (cd frontend && npm ci && npm run build)
+        else
+            (cd frontend && npm install && npm run build)
+        fi
         echo -e "${GREEN}前端构建完成: ${FRONTEND_DIST}${NC}"
     else
         echo -e "${RED}前端构建失败: 需要 npm 和 frontend 目录${NC}"