Add LOT model mapping management, UI, and first-seen tracking

internal/api/ui_assets.tmpl

@@ -40,7 +40,7 @@
             <td>{{.VendorSerial}}</td>
             <td>{{if .Vendor}}{{.Vendor}}{{else}}—{{end}}</td>
             <td>{{if .Model}}{{.Model}}{{else}}—{{end}}</td>
-            <td>{{if .LotID}}{{.LotID}}{{else}}—{{end}}</td>
+            <td>{{lotCode .LotID $.LotCodes}}</td>
             <td title="{{formatTimePtrFull .FirstSeenAt}}">{{formatTimePtr .FirstSeenAt}}</td>
           </tr>
           {{end}}