Add custom fields + warranty plugin, rework settings into two-pane shell

Feature work from the 2026-07 session:

Settings IA
- Replace the flat 27-card settings hub with a persistent two-pane shell
  (SettingsLayout.vue): grouped, searchable left rail + content pane.
- Nest all settings/* routes under the shell via router post-processing;
  shared nav catalog in settingsNav.js. Group by asset class (PCs, Printers,
  Equipment, Network) so per-type settings stop scattering.

Custom fields (core)
- customfields + customfieldvalues tables (migration 7d14), CRUD API at
  /api/customfields, per-asset value get/save.
- Settings management page + reusable CustomFieldsSection (detail) and
  CustomFieldsInputs (form) wired into all four asset types.

Warranty (new plugin)
- plugins/warranty: warranties + warrantyassets (migration 7d15), derived
  coverage status, provider abstraction (manual now; Dell/Lenovo/HP stubs).
- API CRUD + per-asset panel + report buckets; WarrantyPanel on all four
  detail pages; Warranties management page; Warranty report + Reports card.
- Seed warranty.* permissions.

Printer drivers
- printerdrivers table (migration 7d13) linked to printer models; drivers now
  surface on the matching printer's detail page.

Other
- PCDetail rebalanced (Network + Status + Warranty + custom fields on the right).
- Rename PCs list "Features" column to "Remote Access"; fix badge hover underline.
- Drop equipment islocationonly field.
- Centralize asset-type label/route maps into utils/assetTypes.js.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend/src/views/settings/StatusesList.vue

@@ -86,21 +86,8 @@
             </div>
 
             <div class="form-group">
-              <label for="color">Color</label>
-              <div class="color-input-row">
-                <input
-                  id="color"
-                  v-model="form.color"
-                  type="color"
-                  class="color-picker"
-                />
-                <input
-                  v-model="form.color"
-                  type="text"
-                  class="form-control"
-                  placeholder="#000000"
-                />
-              </div>
+              <label>Color</label>
+              <ColorSwatchPicker v-model="form.color" />
               <small class="form-hint">Used in UI to visually distinguish statuses</small>
             </div>
 
@@ -151,6 +138,7 @@
 import { ref, onMounted } from 'vue'
 import { assetsApi } from '../../api'
 import PaginationBar from '../../components/PaginationBar.vue'
+import ColorSwatchPicker from '@/components/ColorSwatchPicker.vue'
 
 const statuses = ref([])
 const loading = ref(true)