Reworked `CHANGELOG.md` into a Keep a Changelog-style release history backfilled from published GitHub releases (starting at 1.6.25), added a structured `Unreleased` section, and linked each version to release/comparison URLs. Updated contributor guidance and the PR template to require concise user-facing changelog notes (or justification when not needed), and added a direct changelog link in the README navigation to make release history easier to find.
- PULL_REQUEST_TEMPLATE gains a scripts-only checklist condensing the
failure-semantics rules (guarded observations, no &&-tail returns,
capture-safe stdout, errexit-immune helpers, fresh-box loop policy,
proving test in the same commit)
- record the self-update channel decision in the bootstrap header:
keep fetching from main, gated by the update-e2e CI job, preserving
one-push-fixes-the-fleet
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Introduce a full workflow/automation subsystem: new WorkflowEngine with DAG validation/execution (Kahn's algorithm), logic-if branching, variable interpolation, script sandboxing (timeouts, output limits), retry semantics, notification nodes, and an in-process WorkflowEventBus for event-triggered workflows. Backend API updates include webhook trigger and validate endpoints, auto-generation of webhook IDs on create/update, and services emitting events (git push, health check failures, app stopped, monitoring alerts). Add Alembic migration to create workflow-related tables and bump VERSION to 1.4.0. Also update .gitignore, add GitHub issue/PR templates, quick-start script, and various frontend workflow panel/component adjustments to support the new automation features.
Juan Denis