Add full search parity and optimize map performance

Search: refactor into modular helpers, add IP/hostname/notification/
vendor/model/type search, smart auto-redirects for exact matches,
ServiceNOW prefix detection, filter buttons with counts, share links
with highlight support, and dark mode badge colors.

Map: fix N+1 queries with eager loading (248->28 queries), switch to
canvas-rendered circleMarkers for better performance with 500+ assets.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/src/api/index.js

@@ -7,12 +7,16 @@ const api = axios.create({
   }
 })
 
-// Add auth token to requests
+// Add auth token and normalize pagination params
 api.interceptors.request.use(config => {
   const token = localStorage.getItem('token')
   if (token) {
     config.headers.Authorization = `Bearer ${token}`
   }
+  // Send both perpage and per_page for backend compatibility
+  if (config.params?.perpage) {
+    config.params.per_page = config.params.perpage
+  }
   return config
 })
 
@@ -306,6 +310,9 @@ export const printersApi = {
 export const dashboardApi = {
   summary() {
     return api.get('/dashboard/summary')
+  },
+  navigation() {
+    return api.get('/dashboard/navigation')
   }
 }
 
@@ -444,8 +451,8 @@ export const applicationsApi = {
 
 // Search API
 export const searchApi = {
-  search(query) {
-    return api.get('/search', { params: { q: query } })
+  search(query, params = {}) {
+    return api.get('/search', { params: { q: query, ...params } })
   }
 }
 
@@ -639,6 +646,9 @@ export const reportsApi = {
   },
   assetInventory(params = {}) {
     return api.get('/reports/asset-inventory', { params })
+  },
+  pcRelationships(params = {}) {
+    return api.get('/reports/pc-relationships', { params })
   }
 }