Add nginx role and playbook for App1 deployment

- Complete nginx role with official repository setup
- Configuration placed in conf.d/ for proper inclusion
- Working stub_status endpoints (/status, /nginx_status)
- Custom HTML template with monitoring information
- Cleanup of default Nginx configurations
- Ready for deployment on App1 (192.168.0.110)

roles/nginx/templates/app1.conf.j2

@@ -0,0 +1,28 @@
+# App1 Nginx configuration
+server {
+    listen 80;
+    server_name _;
+    
+    root /var/www/app1;
+    index index.html;
+    
+    location / {
+        try_files $uri $uri/ =404;
+    }
+    
+    location /status {
+        stub_status on;
+        access_log off;
+        allow 127.0.0.1;
+        allow 192.168.0.0/24;
+        deny all;
+    }
+    
+    location /nginx_status {
+        stub_status on;
+        access_log off;
+        allow 127.0.0.1;
+        allow 192.168.0.0/24;
+        deny all;
+    }
+}