feat(ui): render every application template except the loading screen as a Vue view

The scene chrome, cockpit, Display controls, command dock, layer panels,
Context rail, welcome card and Provider Settings move verbatim into
src/ui/views and mount into their hosts before the page is translated and
wired. Each view renders the same elements, attributes and text as its
template; Vue keeps whitespace between elements as one space, and no view
markup sits under a white-space: pre rule.

Template asset URLs stay literal, view files are left out of Prettier so
the markup is not reflowed, and the Node component loader moves to build/
and is exported as build/register-vue for host test runners. Hosts that do
not initialize Core's locale pass localePicker: false instead of editing
the markup.

src/firstRunExperience.test.mjs

@@ -816,7 +816,7 @@ test('markup, startup ordering and accessibility remain pinned', async () => {
     html,
     /data-first-run-status[^>]*role="status"[^>]*aria-live="polite"/,
   );
-  assert.match(html, /<input type="checkbox" data-first-run-suppress \/>/);
+  assert.match(html, /<input type="checkbox" data-first-run-suppress\s*\/?>/);
   assert.match(html, /<strong data-first-run-environmental-title>/);
   // Subcopy must name BOTH feeds the tile turns on — a tile that promised only
   // half of what it does is the defect this replaced. Only the VISIBLE <small>