docs(03-01): complete setup backend plan

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.planning/STATE.md

@@ -2,16 +2,16 @@
 gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
-status: completed
-stopped_at: Phase 3 context gathered
-last_updated: "2026-03-15T11:22:28.300Z"
-last_activity: 2026-03-15 — Completed 02-03 visual verification
+status: in_progress
+stopped_at: Completed 03-01-PLAN.md
+last_updated: "2026-03-15T11:43:11.000Z"
+last_activity: 2026-03-15 — Completed 03-01 setup backend
 progress:
   total_phases: 3
   completed_phases: 2
-  total_plans: 7
-  completed_plans: 7
-  percent: 100
+  total_plans: 10
+  completed_plans: 8
+  percent: 80
 ---
 
 # Project State
@@ -21,16 +21,16 @@ progress:
 See: .planning/PROJECT.md (updated 2026-03-14)
 
 **Core value:** Make it effortless to manage gear and plan new purchases — see how a potential buy affects your total setup weight and cost before committing.
-**Current focus:** Phase 2: Planning Threads
+**Current focus:** Phase 3: Setups and Dashboard
 
 ## Current Position
 
-Phase: 2 of 3 (Planning Threads)
-Plan: 3 of 3 in current phase (COMPLETE)
-Status: Phase complete
-Last activity: 2026-03-15 — Completed 02-03 visual verification
+Phase: 3 of 3 (Setups and Dashboard)
+Plan: 1 of 3 in current phase
+Status: In progress
+Last activity: 2026-03-15 — Completed 03-01 setup backend
 
-Progress: [██████████] 100%
+Progress: [████████░░] 80%
 
 ## Performance Metrics
 
@@ -56,6 +56,7 @@ Progress: [██████████] 100%
 | Phase 02 P01 | 5min | 2 tasks | 9 files |
 | Phase 02 P02 | 4min | 2 tasks | 10 files |
 | Phase 02 P03 | 1min | 1 tasks | 0 files |
+| Phase 03 P01 | 8min | 2 tasks | 9 files |
 
 ## Accumulated Context
 
@@ -81,6 +82,8 @@ Recent decisions affecting current work:
 - [Phase 02-02]: Candidate panel runs as separate SlideOutPanel instance with independent uiStore state
 - [Phase 02-02]: Resolution invalidates threads, items, and totals queries for cross-tab data freshness
 - [Phase 02-03]: All four THRD requirements verified working end-to-end in browser
+- [Phase 03-01]: syncSetupItems uses delete-all + re-insert in transaction for simplicity
+- [Phase 03-01]: SQL COALESCE ensures 0 returned for empty setups instead of null
 
 ### Pending Todos
 
@@ -93,6 +96,6 @@ None yet.
 
 ## Session Continuity
 
-Last session: 2026-03-15T11:22:28.298Z
-Stopped at: Phase 3 context gathered
-Resume file: .planning/phases/03-setups-and-dashboard/03-CONTEXT.md
+Last session: 2026-03-15T11:43:11.000Z
+Stopped at: Completed 03-01-PLAN.md
+Resume file: .planning/phases/03-setups-and-dashboard/03-02-PLAN.md