fix(app): align Settings controls and version metadata

The editor select referenced an undefined style class, and the renderer hard-coded 0.1.0 instead of reading Electron app metadata.

tests/app-main-settings.test.mjs

@@ -388,6 +388,12 @@ test('session IPC hides Codex rows by default and supports explicit source opt-i
   const restore = registerMocks([
     [ELECTRON_URL, {
       namedExports: electronNamespace({
+        app: {
+          whenReady: () => Promise.resolve(),
+          on() {},
+          quit() {},
+          getVersion: () => '9.8.7-test',
+        },
         BrowserWindow: FakeBrowserWindow,
         ipcMain: {
           handle(channel, handler) {
@@ -419,7 +425,8 @@ test('session IPC hides Codex rows by default and supports explicit source opt-i
     assert.match(queries.at(-1).sql, /COALESCE\(source, 'claude'\) = \?/);
     assert.ok(queries.at(-1).params.includes('codex'));
 
-    await ipcHandlers.get('settings:get')();
+    const settings = await ipcHandlers.get('settings:get')();
+    assert.equal(settings.version, '9.8.7-test');
     assert.ok(
       queries.some(q => /GROUP BY COALESCE\(source, 'claude'\)/.test(q.sql)),
     );

tests/settings-view.test.mjs

@@ -0,0 +1,19 @@
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { readFileSync } from 'node:fs';
+
+const source = readFileSync(
+  new URL('../app/src/renderer/src/views/Settings.vue', import.meta.url),
+  'utf8',
+);
+
+test('Settings reads the displayed version from the settings payload', () => {
+  assert.doesNotMatch(source, /const version = ref\(['"]0\.1\.0['"]\)/);
+  assert.match(source, /version\.value = s\.version/);
+});
+
+test('Editor selector uses the themed Settings control vocabulary', () => {
+  assert.match(source, /<select class="path-field select-field"/);
+  assert.match(source, /\.select-field\s*\{[^}]*appearance:\s*none/s);
+  assert.match(source, /\.select-control::after\s*\{/);
+});