fix: GitHub Copilot auth fails to open browser in Desktop app (#6957) (#8019)

Signed-off-by: Douwe Osinga <douwe@squareup.com>
Co-authored-by: Douwe Osinga <douwe@squareup.com>

ui/desktop/src/api/types.gen.ts

@@ -90,12 +90,17 @@ export type ConfigKey = {
      * Optional default value for the key
      */
     default?: string | null;
+    /**
+     * Whether this OAuth flow uses the device code grant (RFC 8628)
+     * When true, the user must enter a verification code in the browser
+     */
+    device_code_flow?: boolean;
     /**
      * The name of the configuration key (e.g., "API_KEY")
      */
     name: string;
     /**
-     * Whether this key should be configured using OAuth device code flow
+     * Whether this key should be configured using an OAuth flow
      * When true, the provider's configure_oauth() method will be called instead of prompting for manual input
      */
     oauth_flow: boolean;

ui/desktop/src/components/onboarding/ProviderConfigForm.tsx

@@ -56,6 +56,8 @@ function OAuthForm({
     }
   };
 
+  const isDeviceCodeFlow = provider.metadata.config_keys.some((key) => key.device_code_flow);
+
   return (
     <div className="flex flex-col items-center gap-3 py-4">
       <Button
@@ -68,7 +70,9 @@ function OAuthForm({
         {isLoading ? 'Signing in...' : `Sign in with ${provider.metadata.display_name}`}
       </Button>
       <p className="text-xs text-text-muted text-center">
-        A browser window will open for you to complete the login.
+        {isDeviceCodeFlow
+          ? 'A browser window will open and the verification code will be copied to your clipboard. Paste it in the browser to complete sign-in.'
+          : 'A browser window will open for you to complete the login.'}
       </p>
     </div>
   );

ui/desktop/src/components/settings/providers/modal/ProviderConfiguationModal.tsx

@@ -281,7 +281,9 @@ export default function ProviderConfigurationModal({
                       : `Sign in with ${provider.metadata.display_name}`}
                   </Button>
                   <p className="text-sm text-text-secondary text-center">
-                    A browser window will open for you to complete the login.
+                    {provider.metadata.config_keys.some((key) => key.device_code_flow)
+                      ? 'A browser window will open and the verification code will be copied to your clipboard. Paste it in the browser to complete sign-in.'
+                      : 'A browser window will open for you to complete the login.'}
                   </p>
                 </div>
               ) : provider.metadata.config_keys.length === 0 &&