fix: organize project structure into backend/frontend/nginx folders

nginx/default.conf

@@ -0,0 +1,22 @@
+server {
+    listen 80;
+    server_name _;
+
+    client_max_body_size 50M;
+
+    location / {
+        root /usr/share/nginx/html;
+        index index.html;
+        try_files $uri $uri/ /index.html;
+    }
+
+    location /api/ {
+        proxy_pass http://backend:8000/api/;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_read_timeout 300s;
+        proxy_connect_timeout 60s;
+    }
+}