feat: wire all components into app entry with menu bar, shortcut, and windows

MyVoxtral/MyVoxtral/MyVoxtralApp.swift

@@ -2,13 +2,75 @@ import SwiftUI
 
 @main
 struct MyVoxtralApp: App {
+    @StateObject private var manager = TranscriptionManager()
+    @StateObject private var settings = AppSettings.shared
+    @State private var transcriptionPanel: TranscriptionPanel?
+    @State private var settingsWindow: NSWindow?
+
+    private let globalShortcut = GlobalShortcut()
+
     var body: some Scene {
-        MenuBarExtra("MyVoxtral", systemImage: "mic.fill") {
-            Text("MyVoxtral")
-            Divider()
-            Button("Quit") {
-                NSApplication.shared.terminate(nil)
+        MenuBarExtra {
+            MenuBarView(
+                manager: manager,
+                onShowTranscription: { showTranscriptionWindow() },
+                onShowSettings: { showSettingsWindow() }
+            )
+            .task {
+                if !settings.hasAPIKey {
+                    showSettingsWindow()
+                }
+                registerShortcut()
+            }
+            .onChange(of: manager.isRecording) {
+                if manager.isRecording && settings.outputMode == .textBox {
+                    showTranscriptionWindow()
+                }
+            }
+        } label: {
+            Image(systemName: manager.isRecording ? "mic.fill" : "mic")
+                .symbolRenderingMode(.palette)
+                .foregroundStyle(manager.isRecording ? .red : .primary)
+        }
+        .onChange(of: settings.shortcutKeyCode) { registerShortcut() }
+        .onChange(of: settings.shortcutModifiers) { registerShortcut() }
+    }
+
+    private func registerShortcut() {
+        globalShortcut.register(
+            keyCode: settings.shortcutKeyCode,
+            modifiers: settings.shortcutModifiers
+        )
+        globalShortcut.onTrigger = { [weak manager] in
+            Task { @MainActor in
+                manager?.toggle()
             }
         }
     }
+
+    private func showTranscriptionWindow() {
+        if transcriptionPanel == nil {
+            transcriptionPanel = TranscriptionPanel(manager: manager)
+        }
+        transcriptionPanel?.show()
+    }
+
+    private func showSettingsWindow() {
+        if let settingsWindow, settingsWindow.isVisible {
+            settingsWindow.makeKeyAndOrderFront(nil)
+            return
+        }
+        let window = NSWindow(
+            contentRect: NSRect(x: 0, y: 0, width: 360, height: 340),
+            styleMask: [.titled, .closable],
+            backing: .buffered,
+            defer: false
+        )
+        window.title = "MyVoxtral Settings"
+        window.contentView = NSHostingView(rootView: SettingsView())
+        window.center()
+        window.makeKeyAndOrderFront(nil)
+        NSApp.activate(ignoringOtherApps: true)
+        self.settingsWindow = window
+    }
 }