feat(voice): reconcile preview and settings with main

add the shared Voice Preview and Settings panel with browser-local preview
and inactivity preferences, keyboard controls and responsive positioning

preserve main’s Rotation and Context behavior, clarify panel routing and
refresh schema pins within the unchanged prompt limit

src/voice/commands.js

@@ -2,17 +2,50 @@ import { createVoiceCommands as bindVoiceCommands } from './sessionCommands.js';
 import { createRealtimeSession } from './realtimeSession.js';
 import { createGeminiSession } from './geminiSession.js';
 import { createProviderCommands } from './providerCommands.js';
+import { createVoicePanelHost } from './panel/host.js';
 
 /** Default composition; callers may supply another session adapter factory. */
 export function createVoiceCommands(options = {}) {
+  const panelHost =
+    options.panel === true
+      ? createVoicePanelHost({
+          storage: options.panelStorage,
+          clock: options.panelClock,
+          readCockpitState: options.styleManager?.getCockpitState
+            ? () => options.styleManager.getCockpitState()
+            : undefined,
+        })
+      : null;
+  const bind = (settings) =>
+    bindVoiceCommands({
+      ...settings,
+      ...(panelHost
+        ? {
+            panelHost,
+            nativePanelProvider: settings.createController
+              ? null
+              : settings.createSession === createRealtimeSession
+                ? 'openai'
+                : settings.createSession === createGeminiSession
+                  ? 'gemini'
+                  : null,
+          }
+        : {}),
+    });
+  let commands;
   // Generic hosts retain the existing default; standalone opts in explicitly.
   if (!options.createSession && options.supportedProviders !== undefined)
-    return createProviderCommands(options, {
-      bind: bindVoiceCommands,
+    commands = createProviderCommands(options, {
+      bind,
       factories: { openai: createRealtimeSession, gemini: createGeminiSession },
     });
-  return bindVoiceCommands({
-    createSession: createRealtimeSession,
-    ...options,
-  });
+  else commands = bind({ createSession: createRealtimeSession, ...options });
+  if (panelHost) {
+    const lifetime = commands.signal ?? commands.session?.signal;
+    lifetime?.addEventListener('abort', () => panelHost.destroy(), {
+      once: true,
+    });
+    if (lifetime?.aborted) panelHost.destroy();
+  }
+  return commands;
 }