Idempotent board-ensure over the installed planka-api gem: uniform lists
(Backlog/Next/Doing/Waiting/Review/Done), uniform label set (P0-P3, hitl,
semi, afk-ready) with per-label color-candidate fallback since Planka's
color whitelist isn't documented, the archived--<name> rename convention
(activate/archive primitives; ensure never archives automatically), and
the bot-created-project visibility fix (shared-type project + explicit
project-manager add + null ownerProjectManagerId). Unit tests stub the
client layer entirely — no live API calls.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XknQRvihHDpYE47RTmUR4N
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