Why: Documents #44 merged the Q2/Q3 plans; the Dev documents pin
follows and the Q2 card opens with its requirement rows (Q3 gets its
own task after Q2 closes).
Evidence: R1-R4 map to the plan's Q2-WP1..WP4 with verified gap citations.
Impact: documentation pin + task card.
Refs: Agent-System-Documents#44
Why: establish the authorized task workspace and its initial baseline.
Evidence: preserved precheck receipt in .task/feature-agent-stack-q2.md; R0=a30c55425a30c5f023b311e9f822f39b796bcbc8.
Impact: task metadata only; the feature workspace starts at a30c55425a.
Refs: .task/feature-agent-stack-q2.md