fix: Nginx POST /auth/login redirect to CMS

- Add map to detect POST requests to /auth/login
- Redirect POST /auth/login to CMS service (port 3001)
- Keep GET /auth/login on frontend (port 3000)

AI Status:
- Ollama server (t-800.norteamericano.cl:11434) not accessible from AWS EC2
- Connection timeout - need to open port 11434 or use public IP

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

nginx/proxy.conf

@@ -3,3 +3,9 @@ map $http_x_forwarded_proto $origin_proto {
     default $http_x_forwarded_proto;
     ""      $scheme;
 }
+
+# Map to detect POST to /auth/login
+map "$request_uri:$request_method" $cms_login {
+    default 0;
+    "~^/auth/login$:POST" 1;
+}

nginx/studio.norteamericano.com

@@ -1,8 +1,11 @@
-# CMS API routes - ONLY POST /auth/login
+# CMS API routes - redirect POST /auth/login to CMS
-# All other routes handled by Next.js rewrites
 
-# Auth login - POST goes to CMS API, GET stays on frontend
 location = /auth/login {
+    # POST requests go to CMS API (port 3001)
+    if ($cms_login) {
+        proxy_pass http://172.18.0.6:3001;
+    }
+    # GET requests stay on frontend (port 3000)
     proxy_pass http://172.18.0.6:3000;
     proxy_set_header Host $host;
     proxy_set_header X-Real-IP $remote_addr;