docs(22-02): complete add-to-thread modal plan

- AddToThreadModal with thread picker and new thread creation
- CATFLOW-05 and CATFLOW-06 requirements completed
- Phase 22 catalog integration 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 22-01-PLAN.md
-last_updated: "2026-04-06T13:57:51.148Z"
+stopped_at: Completed 22-02-PLAN.md
+last_updated: "2026-04-06T14:01:30.283Z"
 last_activity: 2026-04-06
 progress:
   total_phases: 16
-  completed_phases: 14
+  completed_phases: 15
   total_plans: 43
-  completed_plans: 40
+  completed_plans: 41
   percent: 0
 ---
 
@@ -62,6 +62,7 @@ Key decisions made during v2.0 planning:
 - [Phase 21]: CollectionView empty state Add button rewired to catalog search overlay
 - [Phase 21]: ItemForm/CandidateForm decoupled from UIStore with onClose prop pattern
 - [Phase 22]: Sonner for toast notifications; all Phase 22 UIStore states added in Plan 01
+- [Phase 22]: Used apiPost directly instead of useCreateCandidate hook for dynamic threadId selection
 
 ### Pending Todos
 
@@ -74,6 +75,7 @@ None active.
 | 260406-j44 | Comprehensive dev seed script for bikepacking gear data | 2026-04-06 | — | [260406-j44-comprehensive-dev-seed-script-for-bikepa](./quick/260406-j44-comprehensive-dev-seed-script-for-bikepa/) |
 | Phase 21 P03 | 6min | 2 tasks | 10 files |
 | Phase 22 P01 | 7min | 2 tasks | 5 files |
+| Phase 22 P02 | 2min | 2 tasks | 2 files |
 
 ### Blockers/Concerns
 
@@ -82,6 +84,6 @@ None active.
 
 ## Session Continuity
 
-Last session: 2026-04-06T13:57:51.145Z
-Stopped at: Completed 22-01-PLAN.md
+Last session: 2026-04-06T14:01:30.281Z
+Stopped at: Completed 22-02-PLAN.md
 Resume file: None