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/ui/localSdrMarkup.test.mjs

@@ -2,11 +2,11 @@ import test from 'node:test';
 import assert from 'node:assert/strict';
 import { readFileSync } from 'node:fs';
 
-import { expandApplicationHtml } from '../../build/application-html.js';
+import { renderApplicationHtml } from '../testSupport/applicationHtml.mjs';
 import { createBrowserViteConfig } from '../../build/vite.js';
 import { R820T_GAIN_STEPS_DB } from '../sdr/gain.js';
 
-const html = expandApplicationHtml(
+const html = await renderApplicationHtml(
   readFileSync(new URL('../../index.html', import.meta.url), 'utf8'),
 );
 const css = readFileSync(