docs: Update CLAUDE.md with completed features #9, #12, #13

Mark issues 9, 12, 13 as done and add implementation details.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CLAUDE.md

@@ -134,11 +134,11 @@ This is a fork with UX improvements. Issues are tracked on the Gitea instance ab
 | 6 | Spool Adjustment History | ✅ DONE |
 | 7 | 3dfilamentprofiles Integration | ❌ REMOVED |
 | 8 | (duplicate of #7) | ✅ DONE |
-| 9 | Hierarchical Locations (Room/Bin) | **Open** |
+| 9 | Hierarchical Locations (Room/Bin) | ✅ DONE |
 | 10 | Database Import/Export | ✅ DONE |
 | 11 | Slicer Integration / Print Jobs | ✅ DONE |
-| 12 | Redesign Home Page Dashboard | **Open** |
+| 12 | Redesign Home Page Dashboard | ✅ DONE |
-| 13 | Batch Operations (Multi-Select Edit) | **Open** |
+| 13 | Batch Operations (Multi-Select Edit) | ✅ DONE |
 | 14 | Extra Weight Field (DryPods, etc.) | **Open** |
 | 15 | Spool Count per Filament in List | **Open** |
 
@@ -355,6 +355,62 @@ Added optional color column to the spool list with filtering capability.
 - Multi-select filtering (can filter by multiple colors)
 - Column hidden by default (enable via column selector)
 
+### Issue #9 Complete - Hierarchical Locations
+
+Storage locations can now be organized in a tree structure (Room > Shelf > Bin).
+
+**Backend:**
+- `spoolman/database/models.py` - Added `Location` model with self-referential parent
+- `spoolman/database/location.py` - CRUD operations, tree building, full path resolution
+- `spoolman/api/v1/location.py` - REST API for locations
+- `migrations/versions/2025_01_21_0100-*.py` - Migration for location table
+
+**Frontend:**
+- `client/src/components/LocationTreeSelect.tsx` - Tree-based location picker
+- `client/src/components/LocationCreateModal.tsx` - Inline location creation
+
+**Features:**
+- Hierarchical structure with parent/child relationships
+- Location types: room, shelf, bin, drawer, box, other
+- Legacy flat location string preserved for backward compatibility
+- API endpoints: GET /location, GET /location/tree, POST/PATCH/DELETE
+
+### Issue #12 Complete - Dashboard Redesign
+
+Redesigned home page with better visualizations and quick stats.
+
+**Backend:** No changes needed - uses existing endpoints.
+
+**Frontend:**
+- `client/src/pages/home/index.tsx` - Refactored layout
+- `client/src/pages/home/components/AlertCards.tsx` - Low stock, pending jobs, needs weighing alerts
+- `client/src/pages/home/components/MaterialDistributionChart.tsx` - Pie chart by material (recharts)
+- `client/src/pages/home/components/QuickStats.tsx` - Total spools, filaments, vendors, weight
+
+**Dependencies:**
+- Added `recharts` package for charts
+
+### Issue #13 Complete - Batch Operations
+
+Multi-select spools with bulk archive/delete/move actions.
+
+**Backend:**
+- `spoolman/api/v1/spool.py` - Added bulk endpoints:
+  - POST /spool/bulk/archive
+  - POST /spool/bulk/delete
+  - POST /spool/bulk/update
+
+**Frontend:**
+- `client/src/pages/spools/list.tsx` - Added row selection
+- `client/src/pages/spools/components/BatchActionBar.tsx` - Floating action bar
+- `client/src/pages/spools/functions.tsx` - Bulk helper functions
+
+**Features:**
+- Checkbox selection with select-all
+- Floating action bar shows when items selected
+- Archive, unarchive, delete, move to location
+- Confirmation modals for all destructive actions
+
 ---
 
 ## Deployment
@@ -384,6 +440,3 @@ When creating a filament via the inline modal on spool create page, the select d
 
 ### Issue #7 - 3dfilamentprofiles Integration REMOVED
 The 3dfilamentprofiles.com website has Vercel bot protection that blocks automated requests. Their GitHub repo (jklewa/filament-profiles-data) only provides sample data (~3 filaments). Since SpoolmanDB already has 6,957+ filaments from major brands, the 3dfp integration was removed rather than maintaining dead code.
-
-### Future: Issue #9 - Hierarchical Locations
-Add room/bin/shelf support for locations. See Gitea issue #9 for details.