feat: improve app visibility settings and keyboard shortcuts

- Add ESC key navigation: return to previous view from full-screen panels
- Sync tray menu with app visibility settings (hide disabled apps)
- Add fnm (fast node manager) path support for CLI version scanning
- Fix useModelState being overwritten when user is editing model fields
- Fix EditProviderDialog showing stale data after save and reopen
- Refactor AppSwitcher to use loop instead of repetitive buttons
- Extract ToggleRow as reusable UI component
- Add domUtils for checking text-editable elements

src-tauri/src/commands/misc.rs

@@ -322,6 +322,19 @@ fn scan_cli_version(tool: &str) -> (Option<String>, Option<String>) {
         search_paths.push(std::path::PathBuf::from("C:\\Program Files\\nodejs"));
     }
 
+    // 添加 fnm 路径支持
+    let fnm_base = home.join(".local/state/fnm_multishells");
+    if fnm_base.exists() {
+        if let Ok(entries) = std::fs::read_dir(&fnm_base) {
+            for entry in entries.flatten() {
+                let bin_path = entry.path().join("bin");
+                if bin_path.exists() {
+                    search_paths.push(bin_path);
+                }
+            }
+        }
+    }
+
     // 扫描 nvm 目录下的所有 node 版本
     let nvm_base = home.join(".nvm/versions/node");
     if nvm_base.exists() {

src-tauri/src/settings.rs

@@ -16,6 +16,47 @@ pub struct CustomEndpoint {
     pub last_used: Option<i64>,
 }
 
+fn default_true() -> bool {
+    true
+}
+
+/// 主页面显示的应用配置
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct VisibleApps {
+    #[serde(default = "default_true")]
+    pub claude: bool,
+    #[serde(default = "default_true")]
+    pub codex: bool,
+    #[serde(default = "default_true")]
+    pub gemini: bool,
+    #[serde(default = "default_true")]
+    pub opencode: bool,
+}
+
+impl Default for VisibleApps {
+    fn default() -> Self {
+        Self {
+            claude: true,
+            codex: true,
+            gemini: true,
+            opencode: true,
+        }
+    }
+}
+
+impl VisibleApps {
+    /// Check if the specified app is visible
+    pub fn is_visible(&self, app: &AppType) -> bool {
+        match app {
+            AppType::Claude => self.claude,
+            AppType::Codex => self.codex,
+            AppType::Gemini => self.gemini,
+            AppType::OpenCode => self.opencode,
+        }
+    }
+}
+
 /// 应用设置结构
 ///
 /// 存储设备级别设置，保存在本地 `~/.cc-switch/settings.json`，不随数据库同步。
@@ -40,6 +81,10 @@ pub struct AppSettings {
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub language: Option<String>,
 
+    // ===== 主页面显示的应用 =====
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub visible_apps: Option<VisibleApps>,
+
     // ===== 设备级目录覆盖 =====
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub claude_config_dir: Option<String>,
@@ -73,10 +118,6 @@ fn default_minimize_to_tray_on_close() -> bool {
     true
 }
 
-fn default_true() -> bool {
-    true
-}
-
 impl Default for AppSettings {
     fn default() -> Self {
         Self {
@@ -86,6 +127,7 @@ impl Default for AppSettings {
             skip_claude_onboarding: true,
             launch_on_startup: false,
             language: None,
+            visible_apps: None,
             claude_config_dir: None,
             codex_config_dir: None,
             gemini_config_dir: None,

src-tauri/src/tray.rs

@@ -318,6 +318,9 @@ pub fn create_tray_menu(
     let app_settings = crate::settings::get_settings();
     let tray_texts = TrayTexts::from_language(app_settings.language.as_deref().unwrap_or("zh"));
 
+    // Get visible apps setting, default to all visible
+    let visible_apps = app_settings.visible_apps.unwrap_or_default();
+
     let mut menu_builder = MenuBuilder::new(app);
 
     // 顶部：打开主界面
@@ -327,7 +330,13 @@ pub fn create_tray_menu(
     menu_builder = menu_builder.item(&show_main_item).separator();
 
     // 直接添加所有供应商到主菜单（扁平化结构，更简单可靠）
+    // Only add visible app sections
     for section in TRAY_SECTIONS.iter() {
+        // Skip hidden apps
+        if !visible_apps.is_visible(&section.app_type) {
+            continue;
+        }
+
         let app_type_str = section.app_type.as_str();
         let providers = app_state.db.get_all_providers(app_type_str)?;