feat(terminal): add Tabby terminal support on macOS, Windows, and Linux

Add Tabby (https://github.com/Eugeny/tabby) as a preferred terminal option
across all three platforms:

- macOS: launch via `open -na Tabby --args run` with login shell
- Windows: search multiple executable candidates (PATH, LOCALAPPDATA,
  ProgramFiles) and launch via `tabby run cmd /K`
- Linux: add `tabby` and `tabby-terminal` to the auto-detection list

Also includes:
- Session manager integration with login-shell command wrapping
- Terminal selector UI entries for all platforms
- i18n labels (zh/en/ja)
- Unit tests for Tabby arg building (with/without cwd)

Closes https://github.com/farion1231/cc-switch/issues/1708

src-tauri/src/commands/misc.rs

@@ -888,6 +888,7 @@ exec bash --norc --noprofile
         "kitty" => launch_macos_open_app("kitty", &script_file, false),
         "ghostty" => launch_macos_open_app("Ghostty", &script_file, true),
         "wezterm" => launch_macos_open_app("WezTerm", &script_file, true),
+        "tabby" => launch_macos_tabby(&script_file),
         _ => launch_macos_terminal_app(&script_file), // "terminal" or default
     };
 
@@ -1005,6 +1006,39 @@ fn launch_macos_open_app(
     Ok(())
 }
 
+/// macOS: Tabby
+#[cfg(target_os = "macos")]
+fn launch_macos_tabby(script_file: &std::path::Path) -> Result<(), String> {
+    use std::process::Command;
+
+    let output = Command::new("open")
+        .args(build_macos_tabby_args(script_file))
+        .output()
+        .map_err(|e| format!("启动 Tabby 失败: {e}"))?;
+
+    if !output.status.success() {
+        let stderr = String::from_utf8_lossy(&output.stderr);
+        return Err(format!(
+            "Tabby 启动失败 (exit code: {:?}): {}",
+            output.status.code(),
+            stderr
+        ));
+    }
+
+    Ok(())
+}
+
+fn build_macos_tabby_args(script_file: &std::path::Path) -> Vec<String> {
+    vec![
+        "-na".to_string(),
+        "Tabby".to_string(),
+        "--args".to_string(),
+        "run".to_string(),
+        "bash".to_string(),
+        script_file.to_string_lossy().into_owned(),
+    ]
+}
+
 /// Linux: 根据用户首选终端启动
 #[cfg(target_os = "linux")]
 fn launch_linux_terminal(config_file: &std::path::Path) -> Result<(), String> {
@@ -1023,6 +1057,8 @@ fn launch_linux_terminal(config_file: &std::path::Path) -> Result<(), String> {
         ("alacritty", vec!["-e"]),
         ("kitty", vec!["-e"]),
         ("ghostty", vec!["-e"]),
+        ("tabby", vec!["run"]),
+        ("tabby-terminal", vec!["run"]),
     ];
 
     // Create temp script file
@@ -1148,6 +1184,7 @@ del \"%~f0\" >nul 2>&1
             "PowerShell",
         ),
         "wt" => run_windows_start_command(&["wt", "cmd", "/K", &bat_path], "Windows Terminal"),
+        "tabby" => run_windows_tabby_command(&bat_path),
         _ => run_windows_start_command(&["cmd", "/K", &bat_path], "cmd"), // "cmd" or default
     };
 
@@ -1164,6 +1201,56 @@ del \"%~f0\" >nul 2>&1
     result
 }
 
+#[cfg(target_os = "windows")]
+fn run_windows_tabby_command(bat_path: &str) -> Result<(), String> {
+    use std::process::Command;
+
+    let mut last_error = String::from("未找到可用的 Tabby 可执行文件");
+
+    for candidate in windows_tabby_executable_candidates() {
+        let result = Command::new(&candidate)
+            .args(["run", "cmd", "/K", bat_path])
+            .creation_flags(CREATE_NO_WINDOW)
+            .spawn();
+
+        match result {
+            Ok(_) => return Ok(()),
+            Err(e) => {
+                last_error = format!("执行 {} 失败: {}", candidate.display(), e);
+            }
+        }
+    }
+
+    Err(last_error)
+}
+
+#[cfg(target_os = "windows")]
+fn windows_tabby_executable_candidates() -> Vec<std::path::PathBuf> {
+    let mut candidates = Vec::new();
+
+    for candidate in ["tabby", "tabby.exe", "Tabby", "Tabby.exe"] {
+        push_unique_path(&mut candidates, std::path::PathBuf::from(candidate));
+    }
+
+    if let Some(local_app_data) = std::env::var_os("LOCALAPPDATA") {
+        let tabby_dir = std::path::PathBuf::from(local_app_data)
+            .join("Programs")
+            .join("Tabby");
+        push_unique_path(&mut candidates, tabby_dir.join("Tabby.exe"));
+        push_unique_path(&mut candidates, tabby_dir.join("tabby.exe"));
+    }
+
+    for env_key in ["ProgramFiles", "ProgramFiles(x86)"] {
+        if let Some(base_dir) = std::env::var_os(env_key) {
+            let tabby_dir = std::path::PathBuf::from(base_dir).join("Tabby");
+            push_unique_path(&mut candidates, tabby_dir.join("Tabby.exe"));
+            push_unique_path(&mut candidates, tabby_dir.join("tabby.exe"));
+        }
+    }
+
+    candidates
+}
+
 /// Windows: Run a start command with common error handling
 #[cfg(target_os = "windows")]
 fn run_windows_start_command(args: &[&str], terminal_name: &str) -> Result<(), String> {

src-tauri/src/commands/mod.rs

@@ -22,10 +22,10 @@ pub mod skill;
 mod stream_check;
 mod sync_support;
 
+mod lightweight;
 mod usage;
 mod webdav_sync;
 mod workspace;
-mod lightweight;
 
 pub use auth::*;
 pub use config::*;
@@ -48,7 +48,7 @@ pub use settings::*;
 pub use skill::*;
 pub use stream_check::*;
 
+pub use lightweight::*;
 pub use usage::*;
 pub use webdav_sync::*;
 pub use workspace::*;
-pub use lightweight::*;

src-tauri/src/lightweight.rs

@@ -87,4 +87,4 @@ pub fn exit_lightweight_mode(app: &tauri::AppHandle) -> Result<(), String> {
 
 pub fn is_lightweight_mode() -> bool {
     LIGHTWEIGHT_MODE.load(Ordering::Acquire)
-}
+}

src-tauri/src/session_manager/terminal/mod.rs

@@ -21,6 +21,7 @@ pub fn launch_terminal(
         "kitty" => launch_kitty(command, cwd),
         "wezterm" => launch_wezterm(command, cwd),
         "alacritty" => launch_alacritty(command, cwd),
+        "tabby" => launch_tabby(command, cwd),
         "custom" => launch_custom(command, cwd, custom_config),
         _ => Err(format!("Unsupported terminal target: {target}")),
     }
@@ -211,6 +212,35 @@ fn launch_alacritty(command: &str, cwd: Option<&str>) -> Result<(), String> {
     }
 }
 
+fn launch_tabby(command: &str, cwd: Option<&str>) -> Result<(), String> {
+    let status = Command::new("open")
+        .args(build_tabby_args(command, cwd))
+        .status()
+        .map_err(|e| format!("Failed to launch Tabby: {e}"))?;
+
+    if status.success() {
+        Ok(())
+    } else {
+        Err("Failed to launch Tabby.".to_string())
+    }
+}
+
+fn build_tabby_args(command: &str, cwd: Option<&str>) -> Vec<String> {
+    let full_command = build_shell_command(command, cwd);
+    let shell = std::env::var("SHELL").unwrap_or_else(|_| "/bin/zsh".to_string());
+
+    vec![
+        "-na".to_string(),
+        "Tabby".to_string(),
+        "--args".to_string(),
+        "run".to_string(),
+        shell,
+        "-l".to_string(),
+        "-c".to_string(),
+        full_command,
+    ]
+}
+
 fn launch_custom(
     command: &str,
     cwd: Option<&str>,
@@ -305,4 +335,44 @@ mod tests {
             "raw:echo foo\\\\\\\\bar\\npwd\\n"
         );
     }
+
+    #[test]
+    fn tabby_uses_login_shell_for_resume_commands() {
+        let shell = std::env::var("SHELL").unwrap_or_else(|_| "/bin/zsh".to_string());
+        let args = build_tabby_args("claude --resume abc-123", Some("/tmp/project dir"));
+
+        assert_eq!(
+            args,
+            vec![
+                "-na",
+                "Tabby",
+                "--args",
+                "run",
+                &shell,
+                "-l",
+                "-c",
+                "cd \"/tmp/project dir\" && claude --resume abc-123",
+            ]
+        );
+    }
+
+    #[test]
+    fn tabby_keeps_command_when_no_cwd_is_provided() {
+        let shell = std::env::var("SHELL").unwrap_or_else(|_| "/bin/zsh".to_string());
+        let args = build_tabby_args("claude --resume abc-123", None);
+
+        assert_eq!(
+            args,
+            vec![
+                "-na",
+                "Tabby",
+                "--args",
+                "run",
+                &shell,
+                "-l",
+                "-c",
+                "claude --resume abc-123",
+            ]
+        );
+    }
 }

src-tauri/src/settings.rs

@@ -264,9 +264,9 @@ pub struct AppSettings {
 
     // ===== 终端设置 =====
     /// 首选终端应用（可选，默认使用系统默认终端）
-    /// - macOS: "terminal" | "iterm2" | "warp" | "alacritty" | "kitty" | "ghostty"
+    /// - macOS: "terminal" | "iterm2" | "alacritty" | "kitty" | "ghostty" | "wezterm" | "tabby"
-    /// - Windows: "cmd" | "powershell" | "wt" (Windows Terminal)
+    /// - Windows: "cmd" | "powershell" | "wt" (Windows Terminal) | "tabby"
-    /// - Linux: "gnome-terminal" | "konsole" | "xfce4-terminal" | "alacritty" | "kitty" | "ghostty"
+    /// - Linux: "gnome-terminal" | "konsole" | "xfce4-terminal" | "alacritty" | "kitty" | "ghostty" | "tabby"
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub preferred_terminal: Option<String>,
 }

src-tauri/src/tray.rs

@@ -393,11 +393,10 @@ pub fn create_tray_menu(
         true,
         crate::lightweight::is_lightweight_mode(),
         None::<&str>,
-    ).map_err(|e| AppError::Message(format!("创建轻量模式菜单失败: {e}")))?;
+    )
+    .map_err(|e| AppError::Message(format!("创建轻量模式菜单失败: {e}")))?;
 
-    menu_builder = menu_builder
+    menu_builder = menu_builder.item(&lightweight_item).separator();
-        .item(&lightweight_item)
-        .separator();
 
     // 退出菜单（分隔符已在上面的 section 循环中添加）
     let quit_item = MenuItem::with_id(app, "quit", tray_texts.quit, true, None::<&str>)

src/components/settings/TerminalSettings.tsx

@@ -16,6 +16,7 @@ const MACOS_TERMINALS = [
   { value: "kitty", labelKey: "settings.terminal.options.macos.kitty" },
   { value: "ghostty", labelKey: "settings.terminal.options.macos.ghostty" },
   { value: "wezterm", labelKey: "settings.terminal.options.macos.wezterm" },
+  { value: "tabby", labelKey: "settings.terminal.options.macos.tabby" },
 ] as const;
 
 const WINDOWS_TERMINALS = [
@@ -25,6 +26,7 @@ const WINDOWS_TERMINALS = [
     labelKey: "settings.terminal.options.windows.powershell",
   },
   { value: "wt", labelKey: "settings.terminal.options.windows.wt" },
+  { value: "tabby", labelKey: "settings.terminal.options.windows.tabby" },
 ] as const;
 
 const LINUX_TERMINALS = [
@@ -40,6 +42,7 @@ const LINUX_TERMINALS = [
   { value: "alacritty", labelKey: "settings.terminal.options.linux.alacritty" },
   { value: "kitty", labelKey: "settings.terminal.options.linux.kitty" },
   { value: "ghostty", labelKey: "settings.terminal.options.linux.ghostty" },
+  { value: "tabby", labelKey: "settings.terminal.options.linux.tabby" },
 ] as const;
 
 // Get terminals for the current platform

src/i18n/locales/en.json

@@ -496,12 +496,14 @@
           "alacritty": "Alacritty",
           "kitty": "Kitty",
           "ghostty": "Ghostty",
-          "wezterm": "WezTerm"
+          "wezterm": "WezTerm",
+          "tabby": "Tabby"
         },
         "windows": {
           "cmd": "Command Prompt",
           "powershell": "PowerShell",
-          "wt": "Windows Terminal"
+          "wt": "Windows Terminal",
+          "tabby": "Tabby"
         },
         "linux": {
           "gnomeTerminal": "GNOME Terminal",
@@ -509,7 +511,8 @@
           "xfce4Terminal": "Xfce4 Terminal",
           "alacritty": "Alacritty",
           "kitty": "Kitty",
-          "ghostty": "Ghostty"
+          "ghostty": "Ghostty",
+          "tabby": "Tabby"
         }
       }
     },

src/i18n/locales/ja.json

@@ -496,12 +496,14 @@
           "alacritty": "Alacritty",
           "kitty": "Kitty",
           "ghostty": "Ghostty",
-          "wezterm": "WezTerm"
+          "wezterm": "WezTerm",
+          "tabby": "Tabby"
         },
         "windows": {
           "cmd": "コマンドプロンプト",
           "powershell": "PowerShell",
-          "wt": "Windows Terminal"
+          "wt": "Windows Terminal",
+          "tabby": "Tabby"
         },
         "linux": {
           "gnomeTerminal": "GNOME Terminal",
@@ -509,7 +511,8 @@
           "xfce4Terminal": "Xfce4 Terminal",
           "alacritty": "Alacritty",
           "kitty": "Kitty",
-          "ghostty": "Ghostty"
+          "ghostty": "Ghostty",
+          "tabby": "Tabby"
         }
       }
     },

src/i18n/locales/zh.json

@@ -496,12 +496,14 @@
           "alacritty": "Alacritty",
           "kitty": "Kitty",
           "ghostty": "Ghostty",
-          "wezterm": "WezTerm"
+          "wezterm": "WezTerm",
+          "tabby": "Tabby"
         },
         "windows": {
           "cmd": "命令提示符",
           "powershell": "PowerShell",
-          "wt": "Windows Terminal"
+          "wt": "Windows Terminal",
+          "tabby": "Tabby"
         },
         "linux": {
           "gnomeTerminal": "GNOME Terminal",
@@ -509,7 +511,8 @@
           "xfce4Terminal": "Xfce4 Terminal",
           "alacritty": "Alacritty",
           "kitty": "Kitty",
-          "ghostty": "Ghostty"
+          "ghostty": "Ghostty",
+          "tabby": "Tabby"
         }
       }
     },

src/types.ts

@@ -303,9 +303,9 @@ export interface Settings {
 
   // ===== 终端设置 =====
   // 首选终端应用（可选，默认使用系统默认终端）
-  // macOS: "terminal" | "iterm2" | "warp" | "alacritty" | "kitty" | "ghostty"
+  // macOS: "terminal" | "iterm2" | "alacritty" | "kitty" | "ghostty" | "wezterm" | "tabby"
-  // Windows: "cmd" | "powershell" | "wt"
+  // Windows: "cmd" | "powershell" | "wt" | "tabby"
-  // Linux: "gnome-terminal" | "konsole" | "xfce4-terminal" | "alacritty" | "kitty" | "ghostty"
+  // Linux: "gnome-terminal" | "konsole" | "xfce4-terminal" | "alacritty" | "kitty" | "ghostty" | "tabby"
   preferredTerminal?: string;
 }