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/handlers/main.yml

@@ -0,0 +1,13 @@
+---
+# Handlers for Nginx role
+- name: reload nginx
+  systemd:
+    name: nginx
+    state: reloaded
+    daemon_reload: yes
+
+- name: restart nginx
+  systemd:
+    name: nginx
+    state: restarted
+    daemon_reload: yes