docs(11-01): complete per-library scan pipeline plan

- Create 11-01-SUMMARY.md with execution results
- Update STATE.md: advance to phase 11 plan 1/3
- Update ROADMAP.md: phase 11 at 1/3 plans complete
- Mark LSCAN-01, LSCAN-02, LSCAN-04 complete in REQUIREMENTS.md

.planning/REQUIREMENTS.md

@@ -32,10 +32,10 @@ Requirements for v1.1 Multi-Library Support milestone. Each maps to roadmap phas
 
 ### Library Scanning
 
-- [ ] **LSCAN-01**: User can trigger a scan for a specific library (not all-or-nothing)
-- [ ] **LSCAN-02**: Scanning is sequential — only one library scans at a time (SQLite single-writer)
+- [x] **LSCAN-01**: User can trigger a scan for a specific library (not all-or-nothing)
+- [x] **LSCAN-02**: Scanning is sequential — only one library scans at a time (SQLite single-writer)
 - [ ] **LSCAN-03**: Scan progress UI shows which library is being scanned
-- [ ] **LSCAN-04**: Existing scan cancellation and pause/resume work per-library
+- [x] **LSCAN-04**: Existing scan cancellation and pause/resume work per-library
 - [x] **LSCAN-05**: Audio files are associated with their library via `library_id` foreign key
 
 ### Unified Presentation
@@ -186,10 +186,10 @@ Which phases cover which requirements. Updated during roadmap creation.
 | LIB-04 | Phase 10 | Complete |
 | LIB-05 | Phase 10 | Complete |
 | LIB-06 | Phase 12 | Pending |
-| LSCAN-01 | Phase 11 | Pending |
-| LSCAN-02 | Phase 11 | Pending |
+| LSCAN-01 | Phase 11 | Complete |
+| LSCAN-02 | Phase 11 | Complete |
 | LSCAN-03 | Phase 11 | Pending |
-| LSCAN-04 | Phase 11 | Pending |
+| LSCAN-04 | Phase 11 | Complete |
 | LSCAN-05 | Phase 10 | Complete |
 | VIEW-01 | Phase 13 | Pending |
 | VIEW-02 | Phase 13 | Pending |