Refactor limqRequest function to remove default localhost URL and add CORS mode for API requests.

lib/api.ts

@@ -21,7 +21,7 @@ export async function limqRequest<T = unknown>(
     throw new Error('No active session. User must be authenticated.');
   }
   
-  const baseUrl = process.env.NEXT_PUBLIC_LIMQ_API || 'http://localhost:3005';
+  const baseUrl = process.env.NEXT_PUBLIC_LIMQ_API;
   const url = `${baseUrl}${endpoint.startsWith('/') ? endpoint : '/' + endpoint}`;
   
   const options: RequestInit = {
@@ -29,7 +29,8 @@ export async function limqRequest<T = unknown>(
     headers: {
       'Content-Type': 'application/json',
       'Authorization': `Bearer ${session.access_token}`
-    }
+    },
+    mode: 'cors'
   };
   
   if (data && (method === 'POST' || method === 'PUT')) {