feat: initialize React frontend with minimalistic Matrix theme

decnet_web/src/utils/api.ts

@@ -0,0 +1,15 @@
+import axios from 'axios';
+
+const api = axios.create({
+  baseURL: 'http://localhost:8000/api/v1',
+});
+
+api.interceptors.request.use((config) => {
+  const token = localStorage.getItem('token');
+  if (token) {
+    config.headers.Authorization = `Bearer ${token}`;
+  }
+  return config;
+});
+
+export default api;