feat(macos): add 'Check for Updates...' menu item

app/lib/desktop/pages/settings/desktop_settings_modal.dart

@@ -50,8 +50,11 @@ import 'package:omi/utils/other/temp.dart';
 import 'package:omi/utils/responsive/responsive_helper.dart';
 import 'package:omi/services/notifications/daily_reflection_notification.dart';
 import 'package:provider/provider.dart';
+import 'package:package_info_plus/package_info_plus.dart';
 import 'package:url_launcher/url_launcher.dart';
 
+import 'package:omi/services/desktop_update_service.dart';
+
 enum SettingsSection {
   account,
   plansAndBilling,
@@ -2290,6 +2293,38 @@ class _DesktopSettingsModalState extends State<DesktopSettingsModal> {
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
+        // Software Update section
+        _buildSettingsGroup(
+          title: 'SOFTWARE UPDATE',
+          children: [
+            FutureBuilder<PackageInfo>(
+              future: PackageInfo.fromPlatform(),
+              builder: (context, snapshot) {
+                final version = snapshot.hasData
+                    ? 'v${snapshot.data!.version} (${snapshot.data!.buildNumber})'
+                    : '...';
+                return _buildSettingsRow(
+                  title: 'Current Version',
+                  subtitle: version,
+                  showChevron: false,
+                  onTap: () {},
+                );
+              },
+            ),
+            _buildSettingsRow(
+              title: 'Check for Updates...',
+              subtitle: DesktopUpdateService().isAvailable
+                  ? 'Checks every 3 hours automatically'
+                  : 'Update service not initialized',
+              onTap: () {
+                DesktopUpdateService().checkForUpdates();
+              },
+            ),
+          ],
+        ),
+
+        const SizedBox(height: 24),
+
         _buildSettingsGroup(
           title: context.l10n.links,
           children: [

app/lib/services/desktop_update_service.dart

@@ -1,6 +1,7 @@
 import 'dart:io';
 
 import 'package:auto_updater/auto_updater.dart';
+import 'package:flutter/services.dart';
 
 import 'package:omi/env/env.dart';
 import 'package:omi/utils/logger.dart';
@@ -12,6 +13,9 @@ class DesktopUpdateService {
   factory DesktopUpdateService() => _instance;
   DesktopUpdateService._internal();
 
+  /// Method channel for receiving update requests from native code
+  static const _channel = MethodChannel('com.omi/updates');
+
   bool _initialized = false;
 
   String get _platform {
@@ -41,6 +45,9 @@ class DesktopUpdateService {
       await autoUpdater.setFeedURL(feedURL);
       await autoUpdater.setScheduledCheckInterval(10800); // Check every 3 hours
 
+      // Set up method channel handler for native menu "Check for Updates"
+      _channel.setMethodCallHandler(_handleMethodCall);
+
       // Check for updates in background on startup
       await autoUpdater.checkForUpdates(inBackground: true);
 
@@ -50,6 +57,21 @@ class DesktopUpdateService {
     }
   }
 
+  /// Handle method calls from native code
+  Future<dynamic> _handleMethodCall(MethodCall call) async {
+    switch (call.method) {
+      case 'checkForUpdates':
+        Logger.debug('Check for updates triggered from native menu');
+        await checkForUpdates();
+        return null;
+      default:
+        throw PlatformException(
+          code: 'Unimplemented',
+          details: 'Method ${call.method} not implemented',
+        );
+    }
+  }
+
   /// Manually check for updates
   Future<void> checkForUpdates() async {
     if (!_initialized) {

app/macos/Runner/AppDelegate.swift

@@ -9,6 +9,9 @@ import app_links
 class AppDelegate: FlutterAppDelegate {
     // Method channel for direct URL delivery to Flutter
     private var urlChannel: FlutterMethodChannel?
+
+    // Method channel for update checking
+    private var updateChannel: FlutterMethodChannel?
 
     // Required for app_links plugin to register Apple Event handler for URL schemes
     override func applicationWillFinishLaunching(_ notification: Notification) {
@@ -66,6 +69,16 @@ class AppDelegate: FlutterAppDelegate {
 
         super.applicationDidFinishLaunching(aNotification)
 
+        // Initialize method channels now that Flutter engine is ready
+        if let mainWindow = NSApp.windows.first(where: { $0 is MainFlutterWindow }) as? MainFlutterWindow,
+           let flutterViewController = mainWindow.contentViewController as? FlutterViewController {
+            updateChannel = FlutterMethodChannel(
+                name: "com.omi/updates",
+                binaryMessenger: flutterViewController.engine.binaryMessenger
+            )
+            NSLog("DEBUG: Initialized updates method channel")
+        }
+
         // Delay to check if app was launched hidden (e.g., as a login item)
         DispatchQueue.main.async {
             if !NSApp.isHidden {
@@ -106,4 +119,11 @@ class AppDelegate: FlutterAppDelegate {
             AppLinks.shared.handleLink(link: url.absoluteString)
         }
     }
+
+    // MARK: - Check for Updates
+
+    @IBAction func checkForUpdates(_ sender: Any) {
+        updateChannel?.invokeMethod("checkForUpdates", arguments: nil)
+        NSLog("DEBUG: Triggered check for updates via menu")
+    }
 }

app/macos/Runner/Base.lproj/MainMenu.xib

@@ -33,6 +33,13 @@
                                 </connections>
                             </menuItem>
                             <menuItem isSeparatorItem="YES" id="VOq-y0-SEH"/>
+                            <menuItem title="Check for Updates…" id="9fK-3T-uXw">
+                                <modifierMask key="keyEquivalentModifierMask"/>
+                                <connections>
+                                    <action selector="checkForUpdates:" target="Voe-Tx-rLC" id="kRq-8H-2mN"/>
+                                </connections>
+                            </menuItem>
+                            <menuItem isSeparatorItem="YES" id="aWz-Qf-7bP"/>
                             <menuItem title="Preferences…" keyEquivalent="," id="BOF-NM-1cW"/>
                             <menuItem isSeparatorItem="YES" id="wFC-TO-SCJ"/>
                             <menuItem title="Services" id="NMo-om-nkz">