feat: 添加 ESC 键快捷返回功能 (#670)

* feat: 添加 ESC 键快捷返回功能

- FullScreenPanel 组件支持 ESC 键关闭
- App.tsx 主页面支持 ESC 键返回主界面
- 优化键盘事件处理，合并多个监听器
- 使用事件捕获阶段避免冲突
- 适用于所有子页面：MCP、设置、Prompts、Skills 等
- 跨平台兼容：macOS、Windows、Linux

* perf: 优化 ESC 键处理逻辑

- 使用 useRef 避免闭包陷阱，提升性能
- 修复输入框中按 ESC 会关闭面板的问题
- 检测焦点元素，不干扰输入框的 ESC 行为
- 改进用户体验，避免意外关闭导致数据丢失

* fix: enhance global keyboard shortcuts and improve useModelState sync

- App & FullScreenPanel: Use `isTextEditableTarget` to prevent shortcuts (ESC, etc.) from triggering while editing text.
- useModelState: Prevent overwriting user input during config synchronization.
- App: Add `Cmd/Ctrl + ,` shortcut to open settings.
- Add `isTextEditableTarget` utility.

src/App.tsx

@@ -30,6 +30,7 @@ import { useProviderActions } from "@/hooks/useProviderActions";
 import { useProxyStatus } from "@/hooks/useProxyStatus";
 import { useLastValidValue } from "@/hooks/useLastValidValue";
 import { extractErrorMessage } from "@/utils/errorUtils";
+import { isTextEditableTarget } from "@/utils/domUtils";
 import { cn } from "@/lib/utils";
 import { isWindows, isLinux } from "@/lib/platform";
 import { AppSwitcher } from "@/components/AppSwitcher";
@@ -291,18 +292,40 @@ function App() {
     checkEnvOnSwitch();
   }, [activeApp]);
 
+  // 全局键盘快捷键
+  const currentViewRef = useRef(currentView);
+
   useEffect(() => {
-    const handleGlobalShortcut = (event: KeyboardEvent) => {
-      if (event.key !== "," || !(event.metaKey || event.ctrlKey)) {
+    currentViewRef.current = currentView;
+  }, [currentView]);
+
+  useEffect(() => {
+    const handleKeyDown = (event: KeyboardEvent) => {
+      // Cmd/Ctrl + , 打开设置
+      if (event.key === "," && (event.metaKey || event.ctrlKey)) {
+        event.preventDefault();
+        setCurrentView("settings");
         return;
       }
+
+      // ESC 键返回
+      if (event.key !== "Escape" || event.defaultPrevented) return;
+
+      // 如果有模态框打开（通过 overflow hidden 判断），则不处理全局 ESC，交给模态框处理
+      if (document.body.style.overflow === "hidden") return;
+
+      const view = currentViewRef.current;
+      if (view === "providers") return;
+
+      if (isTextEditableTarget(event.target)) return;
+
       event.preventDefault();
-      setCurrentView("settings");
+      setCurrentView(view === "skillsDiscovery" ? "skills" : "providers");
     };
 
-    window.addEventListener("keydown", handleGlobalShortcut);
+    window.addEventListener("keydown", handleKeyDown);
     return () => {
-      window.removeEventListener("keydown", handleGlobalShortcut);
+      window.removeEventListener("keydown", handleKeyDown);
     };
   }, []);