Add dockhand role to initial_install

Tagged never,dockhand_install so it only runs when explicitly requested.
Installs docker.io + docker-compose-v2, templates a compose file for
fnsys/dockhand:latest at /docker/dockhand, and wires a oneshot systemd
unit that brings the stack up.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

initial_install/roles/dockhand/tasks/main.yml

@@ -0,0 +1,46 @@
+---
+- name: Install Docker and Compose
+  ansible.builtin.package:
+    name:
+      - docker.io
+      - docker-compose-v2
+    state: present
+
+- name: Ensure Docker is running
+  ansible.builtin.systemd:
+    name: docker
+    enabled: true
+    state: started
+
+- name: Ensure /docker/dockhand exists
+  ansible.builtin.file:
+    path: /docker/dockhand
+    state: directory
+    owner: root
+    group: root
+    mode: '0755'
+
+- name: Deploy dockhand docker-compose.yml
+  ansible.builtin.template:
+    src: docker-compose.yml.j2
+    dest: /docker/dockhand/docker-compose.yml
+    owner: root
+    group: root
+    mode: '0644'
+  notify: Restart dockhand
+
+- name: Deploy dockhand systemd unit
+  ansible.builtin.template:
+    src: dockhand.service.j2
+    dest: /etc/systemd/system/dockhand.service
+    owner: root
+    group: root
+    mode: '0644'
+  notify: Reload systemd
+
+- name: Enable and start dockhand
+  ansible.builtin.systemd:
+    name: dockhand
+    enabled: true
+    state: started
+    daemon_reload: true