docs(25-01): complete catalog enrichment data layer plan

- SUMMARY.md: attribution columns, upsert service, Zod schemas
- STATE.md: advance to plan 2, add decisions
- ROADMAP.md: update phase 25 progress
- REQUIREMENTS.md: mark CATL-01, CATL-02, CATL-05 complete

.planning/STATE.md

@@ -2,15 +2,15 @@
 gsd_state_version: 1.0
 milestone: v2.1
 milestone_name: Public Discovery
-status: verifying
-stopped_at: Phase 25 context gathered
-last_updated: "2026-04-10T08:33:11.968Z"
+status: executing
+stopped_at: Completed 25-01-PLAN.md
+last_updated: "2026-04-10T08:59:46.905Z"
 last_activity: 2026-04-10
 progress:
   total_phases: 6
   completed_phases: 1
-  total_plans: 2
-  completed_plans: 2
+  total_plans: 4
+  completed_plans: 3
   percent: 0
 ---
 
@@ -21,13 +21,13 @@ progress:
 See: .planning/PROJECT.md (updated 2026-04-09)
 
 **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:** Phase 24 — public-access-infrastructure
+**Current focus:** Phase 25 — catalog-enrichment-agent-tools
 
 ## Current Position
 
-Phase: 999.1
-Plan: Not started
-Status: Phase complete — ready for verification
+Phase: 25 (catalog-enrichment-agent-tools) — EXECUTING
+Plan: 2 of 2
+Status: Ready to execute
 Last activity: 2026-04-10
 
 Progress: [░░░░░░░░░░] 0%
@@ -64,6 +64,8 @@ v2.1 decisions:
 - [Phase 24-public-access-infrastructure]: Browse tier 120/min, detail tier 60/min — same limits for auth and anon users
 - [Phase 24]: Both auth prompt CTAs go to /login — Logto handles sign-in and sign-up at the same OIDC endpoint
 - [Phase 24]: Soft navigate() replaces hard window.location.href for private route redirect — defers until auth resolves
+- [Phase 25-catalog-enrichment-agent-tools]: Three-way tag sync: undefined=leave untouched, []=clear all, [names]=replace — enables selective tag updates from catalog agents
+- [Phase 25-catalog-enrichment-agent-tools]: unique(brand, model) constraint on globalItems: enables safe ON CONFLICT DO UPDATE for catalog enrichment agents
 
 ### Pending Todos
 
@@ -75,6 +77,6 @@ None.
 
 ## Session Continuity
 
-Last session: 2026-04-10T08:33:11.966Z
-Stopped at: Phase 25 context gathered
-Resume file: .planning/phases/25-catalog-enrichment-agent-tools/25-CONTEXT.md
+Last session: 2026-04-10T08:59:46.903Z
+Stopped at: Completed 25-01-PLAN.md
+Resume file: None