The agents' runtime KB had drifted three releases behind the gateway. Add the
two missing role docs (prompter, secretary — both live-session SDK chat roles,
human-only) and fold the AC/decomposition guardrails and per-dev code queues
into the high-traffic PM docs:
- task-model: acceptance_criteria_ids + parent_ac_refs fields and how the
child->parent AC link works.
- task-planning: covers_parent_criteria on delegate, the parent_ac_coverage /
unclaimed_parent_acs briefing fields, the decomposition-floor and roll-up
gates (safe-by-construction), and per-dev sequenced code queues.
- task-tools: same coverage note + correct stale verbs — QA is
pass_review/fail_review (not pass/fail), cell_pm gains reassign, and main_pm
no longer claims submit_up/reassign it does not have.
