docs(26-02): complete discovery routes and hooks plan

.planning/STATE.md

@@ -3,14 +3,14 @@ gsd_state_version: 1.0
 milestone: v2.1
 milestone_name: Public Discovery
 status: executing
-stopped_at: Completed 26-01-PLAN.md
-last_updated: "2026-04-10T12:55:01.408Z"
+stopped_at: Completed 26-02-PLAN.md
+last_updated: "2026-04-10T12:59:46.313Z"
 last_activity: 2026-04-10
 progress:
   total_phases: 6
   completed_phases: 2
   total_plans: 7
-  completed_plans: 5
+  completed_plans: 6
   percent: 0
 ---
 
@@ -26,7 +26,7 @@ See: .planning/PROJECT.md (updated 2026-04-09)
 ## Current Position
 
 Phase: 26 (discovery-landing-page) — EXECUTING
-Plan: 2 of 3
+Plan: 3 of 3
 Status: Ready to execute
 Last activity: 2026-04-10
 
@@ -70,6 +70,7 @@ v2.1 decisions:
 - [Phase 25-catalog-enrichment-agent-tools]: Attribution spacing: image div removes mb-6, attribution paragraph takes mb-6, fallback div ensures consistent spacing
 - [Phase 26-discovery-landing-page]: Composite cursor for setups uses itemCount_id format filtered post-query in JS for simplicity with grouped SQL
 - [Phase 26-discovery-landing-page]: No cursor pagination for getTrendingCategories — bounded small list, simple limit is sufficient
+- [Phase 26]: discoveryRoutes registered with browseTier rate limiting (120 req/min) for all GET discovery endpoints
 
 ### Pending Todos
 
@@ -81,6 +82,6 @@ None.
 
 ## Session Continuity
 
-Last session: 2026-04-10T12:55:01.406Z
-Stopped at: Completed 26-01-PLAN.md
+Last session: 2026-04-10T12:59:46.310Z
+Stopped at: Completed 26-02-PLAN.md
 Resume file: None