Initial commit: Full project structure

- Backend: NestJS with Docker
- Frontend: Next.js with Docker
- Nginx configuration for reverse proxy
- PostgreSQL setup
- Docker compose for orchestration
- Development environment configuration

frontend/src/lib/api/client.ts

@@ -0,0 +1,57 @@
+// src/lib/api/client.ts
+import axios, { AxiosError, InternalAxiosRequestConfig } from 'axios';
+import { ApiError } from '@/types';
+
+interface CustomAxiosRequestConfig extends InternalAxiosRequestConfig {
+  _retry?: boolean;
+}
+
+export const apiClient = axios.create({
+  baseURL: process.env.NEXT_PUBLIC_API_URL,
+  withCredentials: true, // ✅ REQUIRED FOR COOKIES
+  headers: {
+    'Content-Type': 'application/json',
+  },
+  timeout: 10000,
+});
+
+// ❌ REMOVE request interceptor completely (no Authorization header)
+
+// ✅ Response interceptor
+apiClient.interceptors.response.use(
+  (response) => response,
+  async (error: AxiosError) => {
+    const originalRequest = error.config as CustomAxiosRequestConfig;
+
+    if (error.response?.status === 401 && !originalRequest._retry) {
+      originalRequest._retry = true;
+
+      try {
+        // ✅ refresh via cookie (no body needed ideally)
+        await axios.post(
+          `${process.env.NEXT_PUBLIC_API_URL}/auth/refresh`,
+          {},
+          { withCredentials: true }
+        );
+
+        return apiClient(originalRequest);
+      } catch (refreshError) {
+        if (typeof window !== 'undefined') {
+          return Promise.reject(error); // ✅ just fail silently
+        }
+        return Promise.reject(refreshError);
+      }
+    }
+
+    const apiError: ApiError = {
+      statusCode: error.response?.status || 500,
+      message:
+        (error.response?.data as any)?.message ||
+        error.message ||
+        'An unexpected error occurred',
+      error: (error.response?.data as any)?.error,
+    };
+
+    return Promise.reject(apiError);
+  }
+);