docs(phase-21): complete phase execution, resolve merge conflicts

.planning/REQUIREMENTS.md

@@ -60,15 +60,11 @@ Requirements for this milestone. Each maps to roadmap phases.
 
 ### Item & Catalog Detail Pages
 
-- [ ] **DETAIL-01**: Clicking a collection item navigates to a full detail page (`/items/:id`) showing all item data
-- [ ] **DETAIL-02**: Clicking a catalog search result navigates to a public detail page (`/global-items/:id`) with "Add to Collection" button
-- [ ] **DETAIL-03**: Item detail page has edit mode toggle for modifying personal fields (notes, category, quantity, purchase price)
+- [x] **DETAIL-01**: Clicking a collection item navigates to a full detail page (`/items/:id`) showing all item data
+- [x] **DETAIL-02**: Clicking a catalog search result navigates to a public detail page (`/global-items/:id`) with "Add to Collection" button
+- [x] **DETAIL-03**: Item detail page has edit mode toggle for modifying personal fields (notes, category, quantity, purchase price)
 - [x] **DETAIL-04**: Thread candidates navigate to detail pages instead of opening slide-out panels
-<<<<<<< HEAD
-- [ ] **DETAIL-05**: Slide-out panels for items and candidates are removed from the application
-=======
 - [x] **DETAIL-05**: Slide-out panels for items and candidates are removed from the application
->>>>>>> worktree-agent-a00c5cfa
 
 ### Tags
 
@@ -189,11 +185,7 @@ Which phases cover which requirements. Updated during roadmap creation.
 | DETAIL-02 | Phase 21 | Pending |
 | DETAIL-03 | Phase 21 | Pending |
 | DETAIL-04 | Phase 21 | Complete |
-<<<<<<< HEAD
-| DETAIL-05 | Phase 21 | Pending |
-=======
 | DETAIL-05 | Phase 21 | Complete |
->>>>>>> worktree-agent-a00c5cfa
 
 **Coverage:**
 - v2.0 requirements: 45 total