Frontend: asset identifiers, statuses, printer types, UI fixes

- Wire gauge/maintenance refs + identifier toggles into equipment pages.
- Repoint status dropdowns and Settings>Statuses to asset statuses.
- Printer type column/filter; require vendor before model; printer-model picker.
- Per-type identifier labels; printer detail title fallback.
- Fixes: truncate long description cells, opaque supply modal, readable
  dark-mode autofill, drum/waste default colorless.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/src/views/network/NetworkDevicesList.vue

@@ -54,7 +54,7 @@
           <table>
             <thead>
               <tr>
-                <th>Asset #</th>
+                <th>Asset Tag</th>
                 <th>Hostname</th>
                 <th>Serial Number</th>
                 <th>Type</th>