Wire measuring tools into identifiers and global search

The measuringtools plugin was missing from two cross-cutting surfaces:
the asset-identifier matrix (no measuring_tool column or per-type
keys - gauge lab reference is their primary identifier) and global
search (results fell to a generic URL and gaugelabreference was never
searched). Measuring tools now have identifier toggles, gated
gauge-lab and maintenance-reference fields on their form and detail,
a search domain toggle, gage-tag search, and proper labels, routes,
and filter chips in search results.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

frontend/src/views/measuringtools/MeasuringToolDetail.vue

@@ -64,10 +64,14 @@
                 <span class="info-label">Name</span>
                 <span class="info-value">{{ tool.name }}</span>
               </div>
-              <div class="info-row" v-if="tool.gaugelabreference">
+              <div class="info-row" v-if="tool.gaugelabreference && isEnabled('gaugelabreference', 'measuring_tool')">
                 <span class="info-label">Gauge Lab Reference</span>
                 <span class="info-value mono">{{ tool.gaugelabreference }}</span>
               </div>
+              <div class="info-row" v-if="tool.maintenancereference && isEnabled('maintenancereference', 'measuring_tool')">
+                <span class="info-label">Maintenance Reference</span>
+                <span class="info-value mono">{{ tool.maintenancereference }}</span>
+              </div>
               <div class="info-row" v-if="tool.serialnumber">
                 <span class="info-label">Serial Number</span>
                 <span class="info-value mono">{{ tool.serialnumber }}</span>
@@ -167,9 +171,12 @@ import CustomFieldsSection from '../../components/CustomFieldsSection.vue'
 import WarrantyPanel from '../../components/WarrantyPanel.vue'
 import AssetRelationships from '../../components/AssetRelationships.vue'
 import { useWarrantyBadge } from '../../composables/warrantyBadge'
+import { useIdentifierFlags } from '../../composables/identifierSettings'
 
 const route = useRoute()
 
+const { isEnabled } = useIdentifierFlags()
+
 const loading = ref(true)
 const tool = ref(null)
 const { warranties } = useWarrantyBadge(() => tool.value?.assetid)

frontend/src/views/measuringtools/MeasuringToolForm.vue

@@ -27,13 +27,21 @@
             <label for="serialnumber">Serial Number (vendor)</label>
             <input id="serialnumber" v-model="form.serialnumber" type="text" class="form-control" />
           </div>
-          <div class="form-group">
+          <div class="form-group" v-if="isEnabled('gaugelabreference', 'measuring_tool')">
             <label for="gaugelabreference">Gauge Lab Reference</label>
             <input id="gaugelabreference" v-model="form.gaugelabreference" type="text" class="form-control" />
             <small class="form-help">Authoritative gauge lab asset reference (if tracked)</small>
           </div>
         </div>
 
+        <div class="form-row" v-if="isEnabled('maintenancereference', 'measuring_tool')">
+          <div class="form-group">
+            <label for="maintenancereference">Maintenance Reference</label>
+            <input id="maintenancereference" v-model="form.maintenancereference" type="text" class="form-control" />
+            <small class="form-help">Maintenance system asset reference (if tracked)</small>
+          </div>
+        </div>
+
         <div class="form-row">
           <div class="form-group">
             <label for="measuringtooltypeid">Type</label>
@@ -126,11 +134,14 @@ import { ref, onMounted, computed } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 import { measuringtoolsApi, assetsApi, locationsApi, businessunitsApi } from '../../api'
 import CustomFieldsInputs from '../../components/CustomFieldsInputs.vue'
+import { useIdentifierFlags } from '../../composables/identifierSettings'
 import { apiError } from '../../utils/apiError'
 
 const route = useRoute()
 const router = useRouter()
 
+const { isEnabled } = useIdentifierFlags()
+
 const isEdit = computed(() => !!route.params.id)
 
 // Resolved dynamically from /api/assets/types (no hardcoded id) so custom
@@ -147,6 +158,7 @@ const form = ref({
   assetnumber: '',
   name: '',
   gaugelabreference: '',
+  maintenancereference: '',
   serialnumber: '',
   statusid: '',
   measuringtooltypeid: '',
@@ -190,6 +202,7 @@ onMounted(async () => {
         assetnumber: data.assetnumber || '',
         name: data.name || '',
         gaugelabreference: data.gaugelabreference || '',
+        maintenancereference: data.maintenancereference || '',
         serialnumber: data.serialnumber || '',
         statusid: data.statusid || '',
         measuringtooltypeid: ext.measuringtooltypeid || '',
@@ -218,6 +231,7 @@ async function saveTool() {
       assetnumber: form.value.assetnumber,
       name: form.value.name || null,
       gaugelabreference: form.value.gaugelabreference || null,
+      maintenancereference: form.value.maintenancereference || null,
       serialnumber: form.value.serialnumber || null,
       statusid: form.value.statusid || null,
       measuringtooltypeid: form.value.measuringtooltypeid || null,