docs(06): pause work — 06-01 complete, 06-03 pending CI verification

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.planning/STATE.md

@@ -3,8 +3,8 @@ gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
 status: executing
-stopped_at: Completed 06-03-PLAN.md (Tasks 2-3, Task 4 checkpoint pending)
-last_updated: "2026-06-25T09:01:40.210Z"
+stopped_at: context exhaustion at 76% (2026-06-25)
+last_updated: "2026-06-25T09:55:59.913Z"
 last_activity: 2026-06-25 -- Phase 06 execution started
 progress:
   total_phases: 6
@@ -115,6 +115,6 @@ Items acknowledged and carried forward from previous milestone close:
 
 ## Session Continuity
 
-Last session: 2026-06-25T09:01:40.203Z
-Stopped at: Completed 06-03-PLAN.md (Tasks 2-3, Task 4 checkpoint pending)
+Last session: 2026-06-25T09:55:59.905Z
+Stopped at: context exhaustion at 76% (2026-06-25)
 Resume file: None