Add USB, Notifications, Network plugins and reusable EmployeeSearch component

New Plugins:
- USB plugin: Device checkout/checkin with employee lookup, checkout history
- Notifications plugin: Announcements with types, scheduling, shopfloor display
- Network plugin: Network device management with subnets and VLANs
- Equipment and Computers plugins: Asset type separation

Frontend:
- EmployeeSearch component: Reusable employee lookup with autocomplete
- USB views: List, detail, checkout/checkin modals
- Notifications views: List, form with recognition mode
- Network views: Device list, detail, form
- Calendar view with FullCalendar integration
- Shopfloor and TV dashboard views
- Reports index page
- Map editor for asset positioning
- Light/dark mode fixes for map tooltips

Backend:
- Employee search API with external lookup service
- Collector API for PowerShell data collection
- Reports API endpoints
- Slides API for TV dashboard
- Fixed AppVersion model (removed BaseModel inheritance)
- Added checkout_name column to usbcheckouts table

Styling:
- Unified detail page styles
- Improved pagination (page numbers instead of prev/next)
- Dark/light mode theme improvements

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

frontend/package-lock.json

@@ -8,6 +8,9 @@
       "name": "shopdb-frontend",
       "version": "1.0.0",
       "dependencies": {
+        "@fullcalendar/core": "^6.1.20",
+        "@fullcalendar/daygrid": "^6.1.20",
+        "@fullcalendar/vue3": "^6.1.20",
         "axios": "^1.6.0",
         "leaflet": "^1.9.4",
         "pinia": "^2.1.0",
@@ -456,6 +459,34 @@
         "node": ">=12"
       }
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+      "license": "MIT",
+      "peerDependencies": {
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+      }
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+    "node_modules/@fullcalendar/vue3": {
+      "version": "6.1.20",
+      "resolved": "https://registry.npmjs.org/@fullcalendar/vue3/-/vue3-6.1.20.tgz",
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+      "license": "MIT",
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@@ -1379,6 +1410,16 @@
         "node": "^10 || ^12 || >=14"
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+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/preact"
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     "node_modules/proxy-from-env": {
       "version": "1.1.0",
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