feat: 主题切换 + 浅色模式适配，SFTP/批量命令/Webhook/仪表盘全面升级

frontend/package-lock.json

@@ -10,6 +10,7 @@
       "dependencies": {
         "@xterm/addon-attach": "^0.12.0",
         "@xterm/addon-fit": "^0.10.0",
+        "@xterm/addon-search": "^0.16.0",
         "axios": "^1.13.4",
         "lucide-react": "^0.563.0",
         "react": "^19.2.0",
@@ -1329,6 +1330,12 @@
         "@xterm/xterm": "^5.0.0"
       }
     },
+    "node_modules/@xterm/addon-search": {
+      "version": "0.16.0",
+      "resolved": "https://mirrors.cloud.tencent.com/npm/@xterm/addon-search/-/addon-search-0.16.0.tgz",
+      "integrity": "sha512-9OeuBFu0/uZJPu+9AHKY6g/w0Czyb/Ut0A5t79I4ULoU4IfU5BEpPFVGQxP4zTTMdfZEYkVIRYbHBX1xWwjeSA==",
+      "license": "MIT"
+    },
     "node_modules/@xterm/xterm": {
       "version": "5.5.0",
       "resolved": "https://registry.npmjs.org/@xterm/xterm/-/xterm-5.5.0.tgz",