Rebuild ansible on the project deploy template

- playbook.yml (hosts: monoco) + vars/default.yml, requirements.yml
- roles: network (shared docker network), greatbear (registry pull,
  bind mount /var/lib/greatbear/pb_data, .env upload, health wait),
  caddy (blockinfile snippet into the shared Caddyfile + docker exec reload)
- image honors PB_DATA_DIR and runs as root to match the bind-mount pattern
- frontend on www.greatbear.in (+apex) with /api/* and /_* proxied to
  PocketBase; admin.greatbear.in redirects to the admin UI

ansible/roles/caddy/handlers/main.yaml

@@ -0,0 +1,5 @@
+---
+- name: Reload Caddy configuration
+  ansible.builtin.command: "docker exec -w /etc/caddy {{ caddy_container }} caddy reload"
+  listen: "Reload Caddy"
+  changed_when: true