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/annotations/drawTool.test.mjs

@@ -62,9 +62,9 @@ test('the engine resolves manual geometry before any name resolution', () => {
 });
 
 test('the Draw control markup carries the ids the tool binds to', () => {
-  // The DISPLAY rail is a component template now, assembled into index.html at
-  // build time — the markup is not in index.html any more.
-  const html = read('src/ui/templates/display-controls.html');
+  // The DISPLAY rail is a Vue view now, rendered into index.html's view host —
+  // the markup is not in index.html any more.
+  const html = read('src/ui/views/DisplayControlsView.vue');
   const ids = [
     'draw-toggle',
     'draw-mode-row',