docs(phase-15): complete phase execution

.planning/STATE.md

@@ -4,13 +4,13 @@ milestone: v1.3
 milestone_name: Research & Decision Tools
 status: planning
 stopped_at: Completed 15-03-PLAN.md
-last_updated: "2026-04-04T18:55:48.924Z"
-last_activity: 2026-04-03 — v2.0 roadmap created (Phases 14-18)
+last_updated: "2026-04-04T19:52:25.447Z"
+last_activity: 2026-04-04
 progress:
-  total_phases: 8
-  completed_phases: 7
-  total_plans: 13
-  completed_plans: 11
+  total_phases: 9
+  completed_phases: 8
+  total_plans: 21
+  completed_plans: 19
   percent: 0
 ---
 
@@ -25,10 +25,10 @@ See: .planning/PROJECT.md (updated 2026-04-03)
 
 ## Current Position
 
-Phase: 14 of 18 (PostgreSQL Migration)
-Plan: 0 of ? in current phase
+Phase: 15 of 18 (PostgreSQL Migration)
+Plan: Not started
 Status: Ready to plan
-Last activity: 2026-04-03 — v2.0 roadmap created (Phases 14-18)
+Last activity: 2026-04-04
 
 Progress: [----------] 0% (v2.0 milestone)