feat: Add Ansible component for playbooks and ad-hoc commands

[dkozlov]

What

Adds a built-in ansible action component that runs Ansible playbooks and ad-hoc commands from a Canvas.

Why

SuperPlane ships execution components (ssh, runner, http) but nothing for configuration management / infrastructure automation. Ansible is a natural fit: a node that, given a playbook (or an ad-hoc module + host pattern) and an inventory, runs Ansible and routes the workflow on success / failed, surfacing the play recap (ok/changed/unreachable/failed) and stdout/stderr.

How

• One component, two modes (Playbook / Ad-hoc) via conditional config fields, modeled on the existing ssh component.
• The SuperPlane process acts as the Ansible control node; it reaches managed hosts through the provided inventory (SSH, or ansible_connection=local for a self-contained run).
• Playbook mode runs with the JSON stdout callback so the per-host recap is captured; routes success (exit 0) / failed (non-zero). If Ansible can't run at all (missing binary, timeout), the run finishes in the error state.
• Security: argv is built as a slice (no shell — no sh -c), module/var names and argv values are validated, and no secrets are logged or emitted.
• Adds ansible to the dev-base image as a dedicated layer (DEBIAN_FRONTEND=noninteractive).
• Unit tests cover validation, argv construction (playbook + ad-hoc, become/extra-vars/limit/verbosity), recap parsing, and success/failed channel routing.

Verified

Built and run end-to-end against a local dev instance: a Start → Ansible (playbook) → Smoke test (ad-hoc) → Display canvas executes, the playbook performs real file operations on localhost, the recap is captured (ok/changed/...), and routing follows success/failed.

Notes

• The component shells out via os/exec on the node running the executor — appropriate for self-hosted/dev; flagged for reviewers.

Files

• pkg/components/ansible/ — ansible.go, runner.go, example.go, example_output.json, ansible_test.go
• pkg/registryimports/registryimports.go — register the component
• Dockerfile — install ansible in the dev image

🤖 Generated with Claude Code

[superplanehq-integration]

👋 Commands for maintainers:

• /sp start - Start an ephemeral machine (takes ~30s)
• /sp stop - Stop a running machine (auto-executed on pr close)