refactor(tapops): modularize page code

groups/Tapops/js/viewer/script-loader.js

@@ -0,0 +1,11 @@
+export class ScriptLoader {
+    static load(src) {
+        return new Promise((resolve, reject) => {
+            const script = document.createElement('script');
+            script.src = src;
+            script.onload = resolve;
+            script.onerror = () => reject(new Error(`Gagal memuat skrip: ${src}`));
+            document.head.appendChild(script);
+        });
+    }
+}