fix: update test assertions to match new error message format

Made-with: Cursor

Author: RyanLee-Dev

test/commands/image/generate.test.ts

@@ -33,6 +33,6 @@ describe('image generate command', () => {
         nonInteractive: false,
         async: false,
       }),
-    ).rejects.toThrow('--prompt is required');
+    ).rejects.toThrow('Missing required argument: --prompt');
   });
 });

test/commands/video/generate.test.ts

@@ -33,6 +33,6 @@ describe('video generate command', () => {
         nonInteractive: false,
         async: false,
       }),
-    ).rejects.toThrow('--prompt is required');
+    ).rejects.toThrow('Missing required argument: --prompt');
   });
 });