auto open github login page when signing in (#636)

frontend/src/components/GitHubLoginDialog.tsx

@@ -90,12 +90,13 @@ export function GitHubLoginDialog({
     };
   }, [polling, deviceState]);
 
-  // Automatically copy code to clipboard when deviceState is set
+  // Automatically copy code to clipboard and open GitHub URL when deviceState is set
   useEffect(() => {
     if (deviceState?.user_code) {
       copyToClipboard(deviceState.user_code);
+      window.open(deviceState.verification_uri, '_blank');
     }
-  }, [deviceState?.user_code]);
+  }, [deviceState?.user_code, deviceState?.verification_uri]);
 
   const copyToClipboard = async (text: string) => {
     try {

frontend/src/pages/settings/GeneralSettings.tsx

@@ -345,9 +345,6 @@ export function GeneralSettings() {
             <Key className="h-5 w-5" />
             GitHub Integration
           </CardTitle>
-          <CardDescription>
-            Connect your GitHub account to enable advanced features.
-          </CardDescription>
         </CardHeader>
         <CardContent className="space-y-4">
           {isAuthenticated ? (