docs(08): capture phase context

.planning/STATE.md

@@ -2,17 +2,15 @@
 gsd_state_version: 1.0
 milestone: v1.1
 milestone_name: Hardening & Validation
-status: pending
-last_updated: "2026-04-13T12:00:00Z"
-last_activity: "2026-04-13 — v1.1 roadmap created (Phases 8–11)"
+status: Pending (roadmap approved, plans not yet drafted)
+stopped_at: Phase 8 context gathered
+last_updated: "2026-04-13T08:02:01.226Z"
+last_activity: 2026-04-13 — v1.1 roadmap created, 15/15 requirements mapped across Phases 8–11
 progress:
   total_phases: 4
   completed_phases: 0
   total_plans: 0
   completed_plans: 0
-  percent: 0
-current_phase: 8
-current_phase_name: Nyquist Validation Track
 ---
 
 # Project State
@@ -70,6 +68,6 @@ Full decision log in PROJECT.md Key Decisions table. Milestone v1.0 decisions ar
 
 ## Session Continuity
 
-Last session: 2026-04-13 — v1.1 roadmap creation
-Stopped at: Roadmap written, requirements traceability updated, awaiting `/gsd:plan-phase 8`
-Resume file: `.planning/ROADMAP.md`
+Last session: 2026-04-13T08:02:01.223Z
+Stopped at: Phase 8 context gathered
+Resume file: .planning/phases/08-nyquist-validation-track/08-CONTEXT.md