add test login credentials

src/server.ts

@@ -17,6 +17,11 @@ payload.init({
   onInit: () => {
     payload.logger.info(`Payload Admin URL: ${payload.getAdminURL()}`)
   },
+  email: {
+    fromName: 'Admin',
+    fromAddress: 'admin@example.com',
+    logMockCredentials: true, // Optional
+  },
 })
 
 // Add your own express routes here