fix: 修复应用窗口未正确激活导致输入穿透到后台应用的问题

- 启动时强制激活应用并设置 key window

apps/macos/VODManager/Sources/VODManager/VODManagerApp.swift

@@ -3,6 +3,8 @@ import SwiftData
 
 @main
 struct VODManagerApp: App {
+    @NSApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
+
     var body: some Scene {
         WindowGroup {
             ContentView()
@@ -15,3 +17,16 @@ struct VODManagerApp: App {
         }
     }
 }
+
+class AppDelegate: NSObject, NSApplicationDelegate {
+    func applicationDidFinishLaunching(_ notification: Notification) {
+        NSApp.activate(ignoringOtherApps: true)
+        if let window = NSApp.windows.first {
+            window.makeKeyAndOrderFront(nil)
+        }
+    }
+
+    func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
+        return true
+    }
+}