docs(19): record phase planned (5 plans, 4 waves)

.planning/STATE.md

@@ -2,10 +2,12 @@
 gsd_state_version: 1.0
 milestone: v1.1
 milestone_name: Operability & Polish
+current_phase: 13
 status: "Phase 12 shipped — PR #22"
 stopped_at: Phase 19 UI-SPEC approved
-last_updated: "2026-06-17T01:20:23.192Z"
-last_activity: 2026-06-16
+last_updated: "2026-06-17T20:04:38.622Z"
+last_activity: 2026-06-17
+last_activity_desc: Phase 19 planning complete
 progress:
   total_phases: 24
   completed_phases: 10
@@ -28,7 +30,7 @@ See: .planning/PROJECT.md (updated 2026-06-16)
 Phase: 13
 Plan: Not started
 Status: Phase 12 shipped — PR #22
-Last activity: 2026-06-16
+Last activity: 2026-06-17 — Phase 19 planning complete
 
 ### ✅ Resolved Checkpoint — Phase 15 Plan 15-03 Task 2 (human-action)