feat(ui): render application templates as Vue views mounted before wiring

Templates listed in build/applicationViews.js expand to mount hosts, and
mountApplicationViews() renders them before translation and wiring. Markup
tests read the page through a server-side render helper, the i18n scanner
reads view templates, and Vue preserves whitespace so views keep the exact
DOM. No template is converted yet.

src/standalone/application.js

@@ -8,6 +8,7 @@ import { createStandaloneData } from './data.js';
 import { createStandaloneTools } from './tools.js';
 import { resolveLocale, applyDocumentLanguage } from '../i18n/locale.js';
 import { applyDocumentTranslations, setLocale } from '../i18n/index.js';
+import { mountApplicationViews } from '../ui/views/index.js';
 import { createGoogleTokenSource } from '../maps/googleTokens.js';
 
 // The existing controls and layer catalog contain page-scoped state.
@@ -33,6 +34,8 @@ export function createStandaloneApplication({
   const activeLocale = resolveLocale();
   setLocale(activeLocale);
   applyDocumentLanguage(document, activeLocale);
+  // Views render the page's markup; translation and wiring read it.
+  mountApplicationViews(document);
   applyDocumentTranslations(document);
   const loadingScreen = document.getElementById('loading-screen');
   const loaderStatus = loadingScreen.querySelector('.loader-status');