Initial commit of some work creating RMO single-page app

Doesn't work yet, but they both start, so checkpoint.

package.json

@@ -6,6 +6,7 @@
   "dependencies": {
     "@popperjs/core": "^2.11.8",
     "@vueuse/core": "^14.2.1",
+    "@vueuse/head": "^2.0.0",
     "axios": "^1.13.6",
     "bootstrap": "^5.3.8",
     "bootstrap-icons": "^1.13.1",
@@ -25,7 +26,8 @@
   },
   "scripts": {
     "build": "vue-tsc && vite build",
-    "dev": "vite",
+    "dev-rmo": "vite --config vite/rmo.ts",
+    "dev-sync": "vite --config vite/sync.ts",
     "generate-icons": "node generate-icons.js",
     "typecheck": "vue-tsc --noEmit",
     "typecheck:watch": "vue-tsc --noEmit --watch"