No dispatcher ever spawned board roles (product-owner / head-marketing) —
_handle_pm_assigned_task gates on _PM_AGENTS and there was no board path —
so a task assigned to the Product Owner sat pending forever (surfaced by the
first board-led run). Board roles advise: triage / note / say / escalate_to_ceo
/ i_am_idle, with NO verb to claim, plan, delegate, or complete. So a respawn
cannot advance the task and would just loop.
Add _handle_board_assigned_task: spawn the assigned board agent exactly ONCE
(tracked in _board_dispatched) with a review prompt that steers it to its real
verbs (record requirements via note, discuss via say, then i_am_idle). The
board review is recorded; the CEO then reassigns the task to Main PM for
delegation (the handoff stays CEO-mediated, by design — board roles cannot
delegate). _dispatch_pm_work routes board-assigned tasks here.
