feat(auth): implement OTP login flow with toast notifications

feat(content): enhance detail view with dynamic content and comments
feat(order): add polling for payment status in the payment view
feat(user): update dashboard to display wallet and recent orders
feat(user): improve orders view with dynamic order fetching and status mapping
feat(api): create API modules for auth, content, order, user, and common functionalities
refactor(request): implement a centralized request utility for API calls

frontend/portal/src/api/auth.js

@@ -0,0 +1,6 @@
+import { request } from '../utils/request';
+
+export const authApi = {
+    sendOTP: (phone) => request('/auth/otp', { method: 'POST', body: { phone } }),
+    login: (phone, otp) => request('/auth/login', { method: 'POST', body: { phone, otp } }),
+};