chore: allow localhost:8000 for local development CORS

Author: jasbanza

api/config.js

@@ -4,9 +4,10 @@
 export const ALLOWED_ORIGINS = [
   'https://jasbanza.github.io',       // GitHub Pages
   'https://cctp-relayer.vercel.app',  // Vercel (update with your actual domain)
-  // Uncomment for local development:
-  // 'http://localhost:3000',
-  // 'http://localhost:8080',
+  // Local development:
+  'http://localhost:8000',
+  'http://localhost:3000',
+  'http://localhost:8080',
 ];