docs: stage pending state updates

.planning/STATE.md

@@ -2,14 +2,14 @@
 gsd_state_version: 1.0
 milestone: v1.3
 milestone_name: Research & Decision Tools
-status: planning
-stopped_at: Completed 19-01-PLAN.md
-last_updated: "2026-04-05T11:22:25.312Z"
-last_activity: 2026-04-05
+status: executing
+stopped_at: Phase 19 context gathered
+last_updated: "2026-04-05T18:22:49.069Z"
+last_activity: 2026-04-05 -- Phase 19 execution started
 progress:
-  total_phases: 12
+  total_phases: 13
   completed_phases: 11
-  total_plans: 33
+  total_plans: 36
   completed_plans: 31
   percent: 0
 ---
@@ -21,16 +21,16 @@ progress:
 See: .planning/PROJECT.md (updated 2026-04-03)
 
 **Core value:** Help people make better gear decisions — discover what others use, compare real-world data, and see how a potential buy affects your setup before committing.
-**Current focus:** v2.0 Platform Foundation — Phase 14 (PostgreSQL Migration)
+**Current focus:** Phase 19 — reference-item-model-tags-schema
 
 ## Current Position
 
-Phase: 19 of 19 (Reference Item Model & Tags Schema)
+Phase: 19 (reference-item-model-tags-schema) — EXECUTING
 Plan: 1 of 3
-Status: Executing
-Last activity: 2026-04-05
+Status: Executing Phase 19
+Last activity: 2026-04-05 -- Phase 19 execution started
 
-Progress: [#---------] 3% (v2.0 milestone)
+Progress: [----------] 0% (v2.0 milestone)
 
 ## Performance Metrics
 
@@ -55,9 +55,6 @@ Key decisions made during v2.0 planning:
 - Separate globalItems table — not a flag on user items table
 - Single-user SQLite mode diverges at v2.0 boundary
 - [Phase 18]: Profile data loaded via usePublicProfile(userId) not /auth/me extension
-- [Phase 19]: Direct globalItemId FK on items replaces itemGlobalLinks junction table
-- [Phase 19]: Data migration SQL: UPDATE items before DROP TABLE item_global_links
-- [Phase 19]: Flat tags system without type categorization per D-16
 
 ### Pending Todos
 
@@ -70,6 +67,6 @@ None active.
 
 ## Session Continuity
 
-Last session: 2026-04-05T18:28:00Z
-Stopped at: Completed 19-01-PLAN.md
-Resume file: None
+Last session: 2026-04-05T18:04:19.310Z
+Stopped at: Phase 19 context gathered
+Resume file: .planning/phases/19-reference-item-model-tags-schema/19-CONTEXT.md