Warranty phase 2: real Dell provider + settings UI + PC hero badge

- DellProvider: real Dell TechDirect lookup. OAuth2 via HTTP Basic auth,
  asset-entitlements under /PROD/sbil/eapi/v5 (the device.warranty path 404s
  for this account), map latest dated entitlement to service level + dates.
  Cache the token process-wide; Dell rate-limits the token endpoint and a
  fresh request per refresh trips a 401 cooldown. Verified against live Dell.
- Lenovo/HP stay config-shaped stubs.
- Settings: warranty_dell_* keys (category integrations); Dell Warranty Lookup
  block in System Settings > Integrations (enable + client id/secret masked +
  optional token/API URL overrides).
- WarrantyPanel takes optional pre-fetched items; PCDetail fetches once and
  feeds both the panel and a new hero warranty-status/end-date badge.
- tools/mock_dell.py for offline testing of the provider flow.

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

frontend/src/views/pcs/PCDetail.vue

@@ -23,6 +23,10 @@
             <span class="badge badge-lg" :style="colorStyle(computer.statuscolor)">
               {{ computer.statusname || 'Unknown' }}
             </span>
+            <span v-if="heroWarranty" class="badge badge-lg" :style="colorStyle(heroWarranty.statuscolor)"
+                  :title="heroWarranty.enddate ? `Warranty ends ${formatWarrantyDate(heroWarranty.enddate)}` : 'Warranty'">
+              {{ heroWarranty.label }}<template v-if="heroWarranty.enddate"> - {{ formatWarrantyDate(heroWarranty.enddate) }}</template>
+            </span>
           </div>
           <div class="hero-details">
             <div class="hero-detail" v-if="computer.computer?.computertypename">
@@ -223,7 +227,7 @@
           <CustomFieldsSection :assetid="computer.assetid" />
 
           <!-- Warranty -->
-          <WarrantyPanel :assetid="computer.assetid" />
+          <WarrantyPanel :assetid="computer.assetid" :items="warranties" />
 
           <!-- Notes -->
           <div class="section-card" v-if="computer.notes">
@@ -250,7 +254,7 @@
 import { ref, onMounted, computed } from 'vue'
 import { colorStyle } from "@/utils/colorStyle"
 import { useRoute } from 'vue-router'
-import { computersApi, applicationsApi, assetsApi } from '../../api'
+import { computersApi, applicationsApi, assetsApi, warrantyApi } from '../../api'
 import LocationMapTooltip from '../../components/LocationMapTooltip.vue'
 import CustomFieldsSection from '../../components/CustomFieldsSection.vue'
 import WarrantyPanel from '../../components/WarrantyPanel.vue'
@@ -263,6 +267,21 @@ const loading = ref(true)
 const computer = ref(null)
 const relationships = ref({ incoming: [], outgoing: [] })
 const installedApps = ref([])
+const warranties = ref([])
+
+// Worst-case warranty for the hero badge: expired > expiring > active > unknown.
+const heroWarranty = computed(() => {
+  if (!warranties.value.length) return null
+  const rank = { expired: 0, expiring: 1, active: 2, unknown: 3 }
+  const worst = [...warranties.value].sort((a, b) => (rank[a.status] ?? 9) - (rank[b.status] ?? 9))[0]
+  const labels = { active: 'Under Warranty', expiring: 'Warranty Expiring', expired: 'Warranty Expired', unknown: 'Warranty' }
+  return { ...worst, label: labels[worst.status] || 'Warranty' }
+})
+
+function formatWarrantyDate(d) {
+  if (!d) return ''
+  return new Date(d + 'T00:00:00').toLocaleDateString()
+}
 
 const controlledEquipment = computed(() => {
   // For computers, find related equipment in any "Controls" relationship
@@ -315,6 +334,16 @@ onMounted(async () => {
     } catch (appError) {
       console.log('No installed apps data:', appError.message)
     }
+
+    // Load warranties (one fetch; feeds both the hero badge and the panel)
+    if (computer.value?.assetid) {
+      try {
+        const warrantyResponse = await warrantyApi.forAsset(computer.value.assetid)
+        warranties.value = warrantyResponse.data.data || []
+      } catch (warrantyError) {
+        console.log('No warranty data:', warrantyError.message)
+      }
+    }
   } catch (error) {
     console.error('Error loading computer:', error)
   } finally {