Tambah logging detail untuk debug Failed to fetch di lokal

public/dashboard/js/api.js

@@ -33,8 +33,11 @@ async function apiRequest(path, options = {}) {
     body: options.body ? JSON.stringify(options.body) : null
   };
 
+  console.log('[API] Request:', { method: config.method, url, headers: { ...headers, Authorization: token ? 'Bearer ***' : 'none' } });
+
   try {
     const res = await fetch(url, config);
+    console.log('[API] Response status:', res.status, res.statusText);
 
     if (res.status === 401) {
       // Unauthorized → clear token & redirect to login
@@ -77,7 +80,20 @@ async function apiRequest(path, options = {}) {
 
     return json;
   } catch (err) {
-    console.error('API error', { url, error: err });
+    console.error('[API] Request failed:', { 
+      url, 
+      error: err,
+      message: err.message,
+      stack: err.stack 
+    });
+    
+    // Tambahkan info lebih detail untuk "Failed to fetch"
+    if (err.message === 'Failed to fetch' || err.message.includes('fetch')) {
+      const detailedError = new Error(`Gagal terhubung ke API: ${url}. Pastikan backend API sudah running di ${API_BASE_URL}`);
+      detailedError.originalError = err;
+      throw detailedError;
+    }
+    
     throw err;
   }
 }