feat: migrate freecad-mcp to GitHub fork install and refactor deployments

- Switch freecad-mcp installation from PyPI to Heluca GitHub fork,
  using a configurable git ref (freecad_mcp_git_ref) instead of
  pinned PyPI version
- Retarget freecad-mcp deployment from Caliban to Larissa, update
  port from 22032 to 22063, and change service user to freecad-mcp
- Add git to apt dependencies for pip git+https installs
- Make deployment summary use inventory_hostname instead of hardcoded host
- Refactor kernos deploy to target all ubuntu hosts with service-based
  filtering via `services` host_var, replacing static host group

ansible/freecad_mcp/deploy.yml

@@ -2,22 +2,21 @@
 # =============================================================================
 # FreeCAD Robust MCP Server — Ansible Deployment Playbook
 # =============================================================================
-# Deploys the FreeCAD MCP Server to Caliban as a systemd service.
+# Deploys the FreeCAD MCP Server to Larissa as a systemd service.
 #
 # The server runs in xmlrpc mode with HTTP transport, exposing the MCP
-# protocol over streamable-http for consumption by MCP Switchboard on Oberon.
+# protocol over streamable-http for consumption by MCP Switchboard on Triton.
 #
-# Pattern: venv + pip install from PyPI (matches Kernos deployment)
+# Pattern: venv + pip install from GitHub fork (fastmcp>=3.2.0)
 #
 # Usage:
 #   ansible-playbook freecad_mcp/deploy.yml
 #
-# Required host_vars (caliban.incus.yml):
-#   freecad_mcp_user: harper
-#   freecad_mcp_group: harper
+# Required host_vars:
+#   freecad_mcp_user: freecad-mcp
+#   freecad_mcp_group: freecad-mcp
 #   freecad_mcp_directory: /srv/freecad-mcp
-#   freecad_mcp_port: 22032
-#   freecad_mcp_version: "0.5.0"  # PyPI version to pin
+#   freecad_mcp_port: 22063
 #
 # Optional host_vars:
 #   freecad_mcp_host: "0.0.0.0"
@@ -95,7 +94,7 @@
   - name: Ensure Python 3, venv, dev headers, and FreeCAD are installed
     become: true
     ansible.builtin.apt:
-      name: [python3, python3-venv, python3-dev, freecad]
+      name: [python3, python3-venv, python3-dev, git, freecad]
       state: present
       update_cache: true
 
@@ -119,12 +118,12 @@
       state: latest
       virtualenv: "{{ freecad_mcp_directory }}/.venv"
 
-  - name: Install freecad-robust-mcp from PyPI
+  - name: Install freecad-robust-mcp from Heluca fork
     become: true
     become_user: "{{ freecad_mcp_user }}"
     ansible.builtin.pip:
       name:
-        - "freecad-robust-mcp=={{ freecad_mcp_version }}"
+        - "freecad-robust-mcp @ git+https://github.com/heluca/freecad-addon-robust-mcp-server.git@{{ freecad_mcp_git_ref }}"
       virtualenv: "{{ freecad_mcp_directory }}/.venv"
       virtualenv_command: python3 -m venv
     notify: restart freecad-mcp
@@ -205,7 +204,7 @@
     ansible.builtin.debug:
       msg: >-
         FreeCAD MCP Server deployed successfully on
-        caliban.incus:{{ freecad_mcp_port }}
+        {{ inventory_hostname }}:{{ freecad_mcp_port }}
 
   # =========================================================================
   # Handlers