Revert "Revert "fix created_at type""

This reverts commit e589649.

Author: pbteja1998

src/pages/api/rzp.ts

@@ -56,7 +56,7 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
           payment_method: paymentMethod,
           status: PaymentStatus.created,
           order_id: data.id,
-          created_at: Date.now(),
+          created_at: new Date().toISOString(),
         },
         { typecast: true }
       );
@@ -89,7 +89,7 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
           payment_method: paymentMethod,
           status: PaymentStatus.created,
           order_id: data.id,
-          created_at: Date.now(),
+          created_at: new Date().toISOString(),
         },
         { typecast: true }
       );

src/services/airtable.ts

@@ -26,7 +26,7 @@ export interface RZPPayment {
   email: string;
   phone: string;
   payment_method: string;
-  created_at: number;
+  created_at: string;
   order_id: string;
   payment_id?: string;
   status: PaymentStatus;
@@ -58,7 +58,7 @@ export interface Campaign {
   amount_raised: number;
   donations_count: number;
   organized_by: string;
-  created_at: number;
+  created_at: string;
   is_active: boolean;
 }