chore(dev): mount ./ansible-dev as a local Ansible source at /srv/ansible

Dev convenience so you can author playbooks on the host and have Steward's
local-source discovery pick them up. ./ansible-dev/ is gitignored (operator
content); a safe demo playbook lives there locally.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.gitignore

@@ -54,3 +54,6 @@ playbook_cache/
 
 # Superpowers brainstorm scratch (visual companion mockups, state)
 .superpowers/
+
+# Local dev Ansible playbooks (operator content, mounted into the container)
+/ansible-dev/

docker-compose.yml

@@ -14,6 +14,9 @@ services:
       # (below) makes this mounted source win over the image-installed package.
       - ./steward:/app/steward
       - ./plugins:/app/plugins
+      # Dev playbooks: edit on the host under ./ansible-dev/, register a *local*
+      # Ansible source pointing at /srv/ansible in Settings → Ansible.
+      - ./ansible-dev:/srv/ansible
       # Optional host mounts — enable the matching plugin in Settings first, then
       # uncomment (the traefik path must exist on this host):
       #   - /mnt/Data/traefik/log:/var/log/traefik:ro     # traefik plugin