dashboarddefaults: pick a kiosk from a dropdown (auto-fill FQDN) + Location wording

Adds GET /api/computers/display-kiosks - the displays that reported in (Kiosk
type), each with its derived FQDN (F<serial>.<domain>). The Dashboard Defaults
form gets a kiosk dropdown that fills the FQDN so admins pick a display instead
of typing an IP; IP stays an optional manual field. Table shows FQDN or IP.
'Business Unit' label -> 'Location' on this page + the settings nav.

frontend/src/views/settings/DashboardDefaultsList.vue

@@ -19,16 +19,16 @@
           <table>
             <thead>
               <tr>
-                <th>IP Address</th>
+                <th>Kiosk (FQDN / IP)</th>
                 <th>Display</th>
-                <th>Business Unit</th>
+                <th>Location</th>
                 <th>Description</th>
                 <th>Actions</th>
               </tr>
             </thead>
             <tbody>
               <tr v-for="d in items" :key="d.dashboarddefaultid">
-                <td class="mono">{{ d.ipaddress }}</td>
+                <td class="mono">{{ d.fqdn || d.ipaddress }}</td>
                 <td>{{ roleLabel(d.displayrole) }}</td>
                 <td>{{ d.businessunit || '-' }}</td>
                 <td class="cell-truncate" :title="d.description">{{ d.description || '-' }}</td>
@@ -57,9 +57,19 @@
         <form @submit.prevent="save">
           <div class="modal-body">
             <div class="form-group">
-              <label for="ipaddress">IP Address *</label>
+              <label for="kiosk">Kiosk</label>
+              <select id="kiosk" v-model="form.fqdn" class="form-control">
+                <option value="">Select a kiosk (or enter an IP below)...</option>
+                <option v-for="k in kiosks" :key="k.computerid" :value="k.fqdn" :disabled="!k.fqdn">
+                  {{ k.hostname }}{{ k.fqdn ? ' - ' + k.fqdn : ' (no serial reported yet)' }}
+                </option>
+              </select>
+              <small class="form-hint">Pick a reporting display to fill its FQDN, or enter an IP manually below.</small>
+            </div>
+            <div class="form-group">
+              <label for="ipaddress">IP Address (optional)</label>
               <input id="ipaddress" v-model="form.ipaddress" type="text" class="form-control"
-                     placeholder="e.g., 10.20.30.40" required />
+                     placeholder="e.g., 10.20.30.40" />
             </div>
             <div class="form-group">
               <label for="displayrole">Display *</label>
@@ -68,10 +78,10 @@
               </select>
             </div>
             <div class="form-group" v-if="form.displayrole === 'dashboard'">
-              <label for="businessunitid">Business Unit *</label>
+              <label for="businessunitid">Location *</label>
               <select id="businessunitid" v-model="form.businessunitid" class="form-control"
                       :required="form.displayrole === 'dashboard'">
-                <option value="">Select business unit...</option>
+                <option value="">Select location...</option>
                 <option v-for="bu in businessUnits" :key="bu.businessunitid" :value="bu.businessunitid">
                   {{ bu.businessunit }}
                 </option>
@@ -112,7 +122,7 @@
 
 <script setup>
 import { ref, onMounted } from 'vue'
-import { dashboardDefaultsApi, businessUnitsApi } from '../../api'
+import { dashboardDefaultsApi, businessUnitsApi, computersApi } from '../../api'
 import { useToast } from '../../composables/toast'
 import { apiError } from '../../utils/apiError'
 const toast = useToast()
@@ -128,6 +138,7 @@ function roleLabel(value) {
 
 const items = ref([])
 const businessUnits = ref([])
+const kiosks = ref([])
 const loading = ref(true)
 
 const showModal = ref(false)
@@ -138,7 +149,7 @@ const error = ref('')
 const showDeleteModal = ref(false)
 const toDelete = ref(null)
 
-const form = ref({ ipaddress: '', displayrole: 'dashboard', businessunitid: '', description: '' })
+const form = ref({ fqdn: '', ipaddress: '', displayrole: 'dashboard', businessunitid: '', description: '' })
 
 onMounted(async () => {
   try {
@@ -147,6 +158,12 @@ onMounted(async () => {
   } catch (err) {
     console.error('Error loading business units:', err)
   }
+  try {
+    const kioskResp = await computersApi.displayKiosks()
+    kiosks.value = kioskResp.data.data || []
+  } catch (err) {
+    console.error('Error loading display kiosks:', err)
+  }
   await loadData()
 })
 
@@ -165,11 +182,12 @@ async function loadData() {
 function openModal(item = null) {
   editing.value = item
   form.value = item ? {
+    fqdn: item.fqdn || '',
     ipaddress: item.ipaddress || '',
     displayrole: item.displayrole || 'dashboard',
     businessunitid: item.businessunitid || '',
     description: item.description || ''
-  } : { ipaddress: '', displayrole: 'dashboard', businessunitid: '', description: '' }
+  } : { fqdn: '', ipaddress: '', displayrole: 'dashboard', businessunitid: '', description: '' }
   error.value = ''
   showModal.value = true
 }

frontend/src/views/settings/settingsNav.js

@@ -82,7 +82,7 @@ export const settingsGroups = [
   {
     title: 'Displays & Kiosks',
     cards: [
-      { to: '/settings/dashboarddefaults', icon: MonitorSmartphone, title: 'Dashboard Defaults', description: 'Map kiosk IPs to a default business unit' },
+      { to: '/settings/dashboarddefaults', icon: MonitorSmartphone, title: 'Dashboard Defaults', description: 'Map kiosk IPs to a default location' },
       { to: '/settings/notificationtypes', icon: Bell, title: 'Notification Types', description: 'Manage notification types, display styles, colors, and auto-expiry' },
     ],
   },