Merge pull request 'feat(about): Implement about API integration and migrate from static JSON' (#23) from feat/huy-05022026-about-api-integration into main

Reviewed-on: UKSOURCE/hailearning.edu.vn#23

api/aboutApi.ts

@@ -0,0 +1,35 @@
+/**
+ * About API Functions
+ * Fetch about us data from external API
+ */
+
+const getApiUrl = (): string => {
+    return process.env.NEXT_PUBLIC_API_URL || "http://localhost:3001";
+};
+
+import { AboutData } from "../app/about/types";
+
+export const aboutApi = {
+    // Get about us data
+    getAbout: async (): Promise<AboutData | null> => {
+        try {
+            const apiUrl = getApiUrl();
+            const response = await fetch(`${apiUrl}/api/about`, {
+                cache: 'no-store',
+                headers: {
+                    'Cache-Control': 'no-cache',
+                    'Pragma': 'no-cache'
+                }
+            });
+            if (!response.ok) {
+                console.error(`HTTP error! status: ${response.status}`);
+                return null;
+            }
+            return await response.json();
+        } catch (error) {
+            console.error("Error fetching about data:", error);
+            return null;
+        }
+    },
+};
+