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/src/views/TVDashboard.vue

@@ -0,0 +1,179 @@
+<template>
+  <div class="tv-dashboard">
+    <div class="slideshow-container">
+      <div
+        v-for="(slide, idx) in slides"
+        :key="slide.filename"
+        class="slide"
+        :class="{ active: idx === currentSlide }"
+      >
+        <img :src="basePath + slide.filename" :alt="slide.filename" />
+      </div>
+
+      <div v-if="error" class="error-message">
+        <h2>Display Error</h2>
+        <p>{{ error }}</p>
+      </div>
+
+      <div v-if="!slides.length && !error" class="error-message">
+        <h2>No Slides</h2>
+        <p>No slides configured for display</p>
+      </div>
+    </div>
+
+    <div class="progress-bar" :style="progressStyle"></div>
+  </div>
+</template>
+
+<script setup>
+import { ref, computed, onMounted, onUnmounted } from 'vue'
+import api from '@/api'
+
+const INTERVAL = 10 // seconds between slides
+
+const slides = ref([])
+const basePath = ref('/static/slides/')
+const currentSlide = ref(0)
+const error = ref('')
+const progress = ref(0)
+
+let slideTimer = null
+let progressTimer = null
+let refreshTimer = null
+
+const progressStyle = computed(() => ({
+  width: `${progress.value}%`,
+  transition: progress.value === 0 ? 'none' : `width ${INTERVAL}s linear`
+}))
+
+onMounted(async () => {
+  await fetchSlides()
+
+  // Start slideshow if we have slides
+  if (slides.value.length > 1) {
+    startSlideshow()
+  }
+
+  // Refresh slide list every 60 seconds
+  refreshTimer = setInterval(fetchSlides, 60000)
+})
+
+onUnmounted(() => {
+  if (slideTimer) clearTimeout(slideTimer)
+  if (progressTimer) clearTimeout(progressTimer)
+  if (refreshTimer) clearInterval(refreshTimer)
+})
+
+async function fetchSlides() {
+  try {
+    const response = await api.get('/slides')
+    const data = response.data
+
+    if (data.success && data.data?.slides?.length > 0) {
+      slides.value = data.data.slides
+      basePath.value = data.data.basepath || '/static/slides/'
+      error.value = ''
+
+      // Restart slideshow if slides changed
+      if (slides.value.length > 1 && !slideTimer) {
+        startSlideshow()
+      }
+    } else {
+      error.value = data.message || 'No slides found'
+    }
+  } catch (err) {
+    console.error('Error fetching slides:', err)
+    error.value = 'Unable to load slides'
+  }
+}
+
+function startSlideshow() {
+  scheduleNextSlide()
+}
+
+function scheduleNextSlide() {
+  // Reset progress bar
+  progress.value = 0
+
+  // Start progress animation after a small delay
+  progressTimer = setTimeout(() => {
+    progress.value = 100
+  }, 50)
+
+  // Schedule next slide
+  slideTimer = setTimeout(() => {
+    nextSlide()
+    scheduleNextSlide()
+  }, INTERVAL * 1000)
+}
+
+function nextSlide() {
+  if (slides.value.length === 0) return
+  currentSlide.value = (currentSlide.value + 1) % slides.value.length
+}
+</script>
+
+<style scoped>
+.tv-dashboard {
+  background: #000;
+  width: 100vw;
+  height: 100vh;
+  margin: 0;
+  padding: 0;
+  overflow: hidden;
+}
+
+.slideshow-container {
+  position: relative;
+  width: 100%;
+  height: 100%;
+}
+
+.slide {
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  opacity: 0;
+  transition: opacity 1s ease-in-out;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.slide.active {
+  opacity: 1;
+}
+
+.slide img {
+  width: 100%;
+  height: 100%;
+  object-fit: contain;
+}
+
+.progress-bar {
+  position: fixed;
+  bottom: 0;
+  left: 0;
+  height: 4px;
+  background: #4181ff;
+  z-index: 100;
+}
+
+.error-message {
+  position: fixed;
+  top: 50%;
+  left: 50%;
+  transform: translate(-50%, -50%);
+  text-align: center;
+  color: #fff;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
+  font-size: 24px;
+}
+
+.error-message h2 {
+  color: #ff4444;
+  margin-bottom: 20px;
+}
+</style>