docs(20-02): complete FAB menu and catalog search overlay plan

- SUMMARY.md with component details and stub documentation
- STATE.md updated with position and decisions
- ROADMAP.md updated with phase 20 plan progress
- REQUIREMENTS.md: CATFLOW-01, CATFLOW-02 marked complete

.planning/STATE.md

@@ -3,14 +3,14 @@ gsd_state_version: 1.0
 milestone: v1.3
 milestone_name: Research & Decision Tools
 status: planning
-stopped_at: Completed 20-01-PLAN.md
-last_updated: "2026-04-06T05:59:26.689Z"
-last_activity: 2026-04-05
+stopped_at: Completed 20-02-PLAN.md
+last_updated: "2026-04-06T06:12:00.000Z"
+last_activity: 2026-04-06
 progress:
   total_phases: 13
   completed_phases: 11
   total_plans: 33
-  completed_plans: 32
+  completed_plans: 33
   percent: 0
 ---
 
@@ -56,6 +56,8 @@ Key decisions made during v2.0 planning:
 - Single-user SQLite mode diverges at v2.0 boundary
 - [Phase 18]: Profile data loaded via usePublicProfile(userId) not /auth/me extension
 - [Phase 20]: Created tags table in schema (was missing, needed for GET /api/tags endpoint)
+- [Phase 20]: FAB visible on all authenticated routes, not just collection gear tab
+- [Phase 20]: Add button on catalog search cards is a stub (Phase 21 wires actual flow)
 
 ### Pending Todos
 
@@ -68,6 +70,6 @@ None active.
 
 ## Session Continuity
 
-Last session: 2026-04-06T05:59:26.687Z
-Stopped at: Completed 20-01-PLAN.md
+Last session: 2026-04-06T06:12:00.000Z
+Stopped at: Completed 20-02-PLAN.md
 Resume file: None