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/tooling/panelStorageDocs.test.mjs

@@ -78,7 +78,7 @@ test('the documented outcomes hold: default, stored open, stored shut, and a sha
   const { PanelPositionControls } =
     await import('../ui/panelPositionControls.js');
   const html = await readFile(
-    path.join(root, 'src/ui/templates/layer-panels.html'),
+    path.join(root, 'src/ui/views/LayerPanelsView.vue'),
     'utf8',
   );
   assert.match(

src/tooling/transitQa.test.mjs

@@ -208,7 +208,7 @@ test('DETECT uses the real OFF/restore button and density input to reach DENSE',
   assert.equal(await detectOn(page, pause), 'DENSE');
   assert.deepEqual(modes, ['BALANCED', 'OFF', 'DENSE']);
   const template = readFileSync(
-    new URL('../ui/templates/display-controls.html', import.meta.url),
+    new URL('../ui/views/DisplayControlsView.vue', import.meta.url),
     'utf8',
   );
   assert.match(template, /id="detection-density-slider"/);