Add the Great Bear and Hops n Grains Mohali Sites

One image serves every Site, so a new Site is three small files: an inventory
entry, a vars file naming its web address and data root, and a config that seeds
its theme and first category list (baked into the image, which is why a new Site
needs a new tag).

Both reuse the directory their old static menus were served from, and the caddy
role drops the snippet the retired nginx-menu playbook wrote for each hostname,
so a deploy repoints each address at its own container with nothing else to do.

The seeded category lists are a starting point, not a decision: categories, names
and icons are all editable in each Site's own admin. A test now checks the
inventory, config and vars agree for every Site and that no config is orphaned,
because a half-added Site was the obvious way to get this wrong.

ansible/hosts

@@ -10,6 +10,8 @@
 
 [menus]
 hopsngrains ansible_host=monoco.tanshu.com var_file=vars/hopsngrains.yml
+greatbear ansible_host=monoco.tanshu.com var_file=vars/greatbear.yml
+hngmohali ansible_host=monoco.tanshu.com var_file=vars/hngmohali.yml
 
 [all:vars]
 ansible_python_interpreter=/usr/bin/python3

ansible/vars/greatbear.yml

@@ -0,0 +1,13 @@
+---
+# The Great Bear. Its name, tagline, icon, categories and menus live on the server under
+# app_root and are edited in the admin; config/greatbear.site.json only seeds the
+# theme and the first category list.
+title: greatbear.in
+host: 'menu.{{ title }}'
+
+docker_container: 'menu-app.{{ title }}'
+docker_network: '{{ docker_container }}_net'
+
+# Everything the app writes — data/ and the untracked site.env. Deliberately the
+# directory the old static menus were served from.
+app_root: '/var/lib/{{ host }}'

ansible/vars/hngmohali.yml

@@ -0,0 +1,13 @@
+---
+# Hops n Grains Mohali. Its name, tagline, icon, categories and menus live on the server under
+# app_root and are edited in the admin; config/hngmohali.site.json only seeds the
+# theme and the first category list.
+title: hngmohali.com
+host: 'menu.{{ title }}'
+
+docker_container: 'menu-app.{{ title }}'
+docker_network: '{{ docker_container }}_net'
+
+# Everything the app writes — data/ and the untracked site.env. Deliberately the
+# directory the old static menus were served from.
+app_root: '/var/lib/{{ host }}'