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/common.js

@@ -0,0 +1,10 @@
+import { request } from '../utils/request';
+
+export const commonApi = {
+    upload: (file, type) => {
+        const formData = new FormData();
+        formData.append('file', file);
+        formData.append('type', type);
+        return request('/upload', { method: 'POST', body: formData });
+    },
+};