shopfloor dashboard: use Archivo display font for TV legibility

Bundle @fontsource-variable/archivo (air-gap safe) and apply it to the shopfloor
dashboard only - a sturdy grotesque built for signage/displays, more legible
from across the shop than Inter. Rest of the app stays on Inter.

frontend/package-lock.json

@@ -8,6 +8,7 @@
       "name": "shopdb-frontend",
       "version": "0.7.0",
       "dependencies": {
+        "@fontsource-variable/archivo": "^5.3.0",
         "@fontsource-variable/inter": "^5.2.8",
         "@fullcalendar/core": "^6.1.20",
         "@fullcalendar/daygrid": "^6.1.20",
@@ -649,6 +650,14 @@
         "node": ">=18"
       }
     },
+    "node_modules/@fontsource-variable/archivo": {
+      "version": "5.3.0",
+      "resolved": "https://registry.npmjs.org/@fontsource-variable/archivo/-/archivo-5.3.0.tgz",
+      "integrity": "sha512-HogK8FJelrD1o7TlZlkIVtHgc20bO5PZRWE7mUeUTdMN055alznQV6/00J00IBeu8FQAH4s3zW9UJNvKExXf+g==",
+      "funding": {
+        "url": "https://github.com/sponsors/ayuhito"
+      }
+    },
     "node_modules/@fontsource-variable/inter": {
       "version": "5.2.8",
       "resolved": "https://registry.npmjs.org/@fontsource-variable/inter/-/inter-5.2.8.tgz",

frontend/package.json

@@ -15,6 +15,7 @@
     "test:watch": "vitest"
   },
   "dependencies": {
+    "@fontsource-variable/archivo": "^5.3.0",
     "@fontsource-variable/inter": "^5.2.8",
     "@fullcalendar/core": "^6.1.20",
     "@fullcalendar/daygrid": "^6.1.20",

frontend/src/main.js

@@ -5,6 +5,9 @@ import App from './App.vue'
 
 // Locally-bundled Inter (air-gap safe, no Google Fonts fetch)
 import '@fontsource-variable/inter'
+// Archivo: display/signage font used on the shopfloor dashboard for
+// distance readability on TVs (air-gap safe, bundled).
+import '@fontsource-variable/archivo'
 
 // Initialize theme on app load
 import './stores/theme'

frontend/src/views/ShopfloorDashboard.vue

@@ -448,7 +448,7 @@ function handlePhotoError(e) {
   position: relative;
   background: #00003d;
   color: #fff;
-  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
+  font-family: 'Archivo Variable', 'Inter Variable', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
   overflow: hidden;
 }