Implement Push-to-Talk feature and enhance audio input settings in AssistantView and CustomizeView. Update README for API key instructions and improve audio processing logic in OpenAI SDK. Adjust pnpm-lock.yaml for dependency updates.

src/utils/ai-provider-manager.js

@@ -186,6 +186,7 @@ async function initializeAISession(customPrompt = '', profile = 'interview', lan
         try {
             await openaiSdkProvider.initializeOpenAISDK(providerConfig);
             openaiSdkProvider.setSystemPrompt(systemPrompt);
+            openaiSdkProvider.updatePushToTalkSettings(prefs.audioInputMode || 'auto');
             sendToRenderer('update-status', 'Ready (OpenAI SDK)');
             return true;
         } catch (error) {
@@ -325,6 +326,16 @@ function setupAIProviderIpcHandlers(geminiSessionRef) {
         saveConversationTurn(transcription, response);
     });
 
+    ipcMain.on('push-to-talk-toggle', () => {
+        if (currentProvider === 'openai-sdk') {
+            openaiSdkProvider.togglePushToTalk();
+        }
+    });
+
+    ipcMain.on('update-push-to-talk-settings', (event, { inputMode } = {}) => {
+        openaiSdkProvider.updatePushToTalkSettings(inputMode || 'auto');
+    });
+
     ipcMain.handle('initialize-ai-session', async (event, customPrompt, profile, language) => {
         return await initializeAISession(customPrompt, profile, language);
     });