Reload nginx when nginx.conf changes

The main config template had no notify, so e.g. a new PHP-FPM upstream socket only took effect after a manual reload.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tasks/main.yml

@@ -11,6 +11,7 @@
   template:
     src: etc/nginx/nginx.conf.j2
     dest: "{{ nginx_root_dir }}/nginx.conf"
+  notify: reload nginx
 
 - name: setup nginx non-default folders
   file: