Add runner execution observability and lifecycle hardening for self-hosted
GitHub Actions runners, including:
- scheduled artifact cleanup job for cached runner tarballs/templates
- workflow_job in_progress handling to mark executions as running
- safer cleanup failure handling and non-functional server fallback
- persisted workflow job HTML URLs with execution "Open" links in UI
- configurable runner group name sync (UI + provisioning + GitHub API)
- webhook events persistence and auto-fix for missing required events
- strict enum/status checks and related model cast/query improvements
Also includes migrations and expanded feature/unit coverage for webhook,
provisioning, cleanup, and runner group/event sync behaviors.
Implement end-to-end GitHub Actions runner support with provisioning,
tracking, and cleanup flows.
- handle `workflow_job` webhooks to provision and tear down runners
- add runner config/execution models, enum states, and relationships
- create jobs for provisioning, cleanup, and stale-runner reaping
- schedule periodic stale runner cleanup in the console kernel
- add Livewire server UI to manage runner configuration and executions
- store GitHub App runner permissions and runner group metadata
- add migrations for runner permissions, configs, executions, and group id
- update GitHub permissions URL generation for organization app settings
- include feature/unit tests for runner behavior and permission paths
