Implements #253's framework: a small core capability registry
(steward/core/capabilities.py) where a module/plugin publishes a named,
role-gated action and a consumer discovers it via has_capability() and runs it
via invoke_capability() — no hard import, graceful degradation, permission
propagation (actor role checked against the capability's required_role).
Core publishes "ansible.run_playbook" (operator) wrapping ansible.runner.
trigger_run (extended to accept a caller-built inventory). First consumer: the
host_agent plugin gains "Deploy via Ansible" on its settings page — pick an
inventory target/group and it installs/updates the agent via the bundled
host_agent/install.yml, minting a fresh token per host and injecting it as an
inventory hostvar (turning per-host curl|sh into one run). Exposed role
ordering as middleware.role_meets. Unit tests for the registry + role checks.
Task #253 (milestone #37).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Adds cron-like recurring runs (the engine the maintenance-automation work
needs). New AnsibleSchedule model + migration 0018; a core ScheduledTask
(ansible_scheduled_runs, 60s) fires due schedules, each creating a
system-triggered AnsibleRun (triggered_by=None). Centralises the
resolve-inventory → create-run → launch flow in ansible/runner.trigger_run,
shared by the manual route (refactored to use it) and the scheduler.
Schedules UI under /ansible/schedules: create/edit/pause/delete/run-now,
with interval presets, scope targeting (all / group / target), extra-vars /
limit / tags / dry-run, and last-run status (resolved via last_run_id) +
next-run. Unit test for the due-check.
Task #549 (milestone #37).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
bvandeusen