Kanban Workflow (core)

Goal

Provide a reusable core for a project-management “co-worker” that:

• Uses the existing stage:* lifecycle as the canonical state machine.
• Integrates with PM platforms via CLI-managed auth only (no direct HTTP auth handling).
• Centralizes workflow/rules/runbooks so GitHub/Planka/Plane/Linear implementations share logic.

Canonical stage model

Treat these labels/states as canonical (and the only stages the agent should consider):

• stage:backlog
• stage:blocked
• stage:in-progress
• stage:in-review