groove-work-brainstorm Outcome Scope is clarified through dialogue. Key decisions and open questions are surfaced. Output is captured as a brainstorm doc or task in the configured backend. Acceptance Criteria - Scope is clearly defined and deliberately constrained (YAGNI applied) - Key decisions are listed with rationale - Open questions are listed (not resolved — resolution happens in plan) - Output exists either as a brainstorm doc or as a task body in the backend - Stage task created in backend: Constraints - Read from to determine backend - Use template at for doc output - Enforce YAGNI —…