shopfloor dashboard: fit-to-viewport scaling for TV kiosks

The board was a fixed-pixel layout with an internal overflow-y scroll, so on a
TV (no scrolling) content past the fold was unreachable. Wrap it in a fixed
1920-wide surface and scale it to fill the viewport (ResizeObserver + resize),
so the whole board is visible edge-to-edge at any resolution. Drop the
.dashboard-content max-height/overflow scroll.

frontend/src/views/ShopfloorDashboard.vue

@@ -1,5 +1,6 @@
 <template>
   <div class="shopfloor-dashboard">
+    <div class="dash-fit" ref="fitEl">
     <header class="dashboard-header">
       <div class="logo-container">
         <img :src="siteLogo" alt="Site logo" class="logo" />
@@ -180,10 +181,11 @@
       Auto-refreshes every 30 seconds
     </footer>
     </div>
+  </div>
 </template>
 
 <script setup>
-import { ref, computed, onMounted, onUnmounted } from 'vue'
+import { ref, computed, onMounted, onUnmounted, nextTick } from 'vue'
 import { notificationsApi, businessUnitsApi, dashboardDefaultsApi } from '@/api'
 import { getFacilityName, getSiteLogo, getServicenowUrls } from '@/utils/siteSettings'
 import { withBase } from '@/utils/basePath'
@@ -204,6 +206,20 @@ let refreshInterval = null
 let recognitionInterval = null
 let recertPageInterval = null
 
+// Fit-to-viewport: the board is a fixed 1920-wide design; scale the whole thing
+// to fill the screen so a TV shows everything with no scrolling, at any size.
+const fitEl = ref(null)
+let resizeObserver = null
+function fitToScreen() {
+  const el = fitEl.value
+  if (!el) return
+  const w = el.offsetWidth || 1
+  const h = el.offsetHeight || 1
+  const scale = Math.min(window.innerWidth / w, window.innerHeight / h)
+  el.style.transform = `scale(${scale})`
+  el.style.left = `${Math.max(0, (window.innerWidth - w * scale) / 2)}px`
+}
+
 // The board groups cards by each type's configured display style, so any custom
 // type set to carousel/grid/banner renders that way - not just the built-ins.
 const SPECIAL_STYLES = ['carousel', 'grid', 'banner']
@@ -318,12 +334,22 @@ onMounted(async () => {
       currentRecertPage.value = (currentRecertPage.value + 1) % recertPageCount.value
     }
   }, 7000)
+
+  // Scale to fit once rendered, and re-fit whenever the content or window
+  // changes size (new data, banner cycling, resolution change).
+  await nextTick()
+  fitToScreen()
+  resizeObserver = new ResizeObserver(() => fitToScreen())
+  if (fitEl.value) resizeObserver.observe(fitEl.value)
+  window.addEventListener('resize', fitToScreen)
 })
 
 onUnmounted(() => {
   if (refreshInterval) clearInterval(refreshInterval)
   if (recognitionInterval) clearInterval(recognitionInterval)
   if (recertPageInterval) clearInterval(recertPageInterval)
+  resizeObserver?.disconnect()
+  window.removeEventListener('resize', fitToScreen)
 })
 
 async function loadData() {
@@ -417,13 +443,25 @@ function handlePhotoError(e) {
 
 <style scoped>
 .shopfloor-dashboard {
-  min-height: 100vh;
+  width: 100vw;
+  height: 100vh;
+  position: relative;
   background: #00003d;
   color: #fff;
   font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
   overflow: hidden;
 }
 
+/* Fixed 1920-wide design surface; JS scales it to fill the viewport (TV) so
+   the whole board is visible with no scrolling. */
+.dash-fit {
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 1920px;
+  transform-origin: top left;
+}
+
 .dashboard-header {
   display: grid;
   grid-template-columns: auto 1fr auto;
@@ -485,8 +523,6 @@ function handlePhotoError(e) {
 
 .dashboard-content {
   padding: 20px 40px;
-  max-height: calc(100vh - 180px);
-  overflow-y: auto;
 }
 
 .section-title {