fix: correct WebSocket setup format and handle Blob messages

- Setup uses "generationConfig" field (not "config") inside "setup" object
- Handle Blob data from WebSocket (Gemini sends binary, not text)
- Voice agent now successfully connects and receives setupComplete

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/components/configurator/VoiceAgentProvider.tsx

@@ -27,6 +27,7 @@ interface VoiceAgentContextValue {
   endConversation: () => void;
   completedBrief: string | null;
   completedFormData: WizardFormData | null;
+  debugLog: string[];
 }
 
 // ─── Context ─────────────────────────────────────────────────────────────────
@@ -289,13 +290,14 @@ export default function VoiceAgentProvider({ locale, children }: VoiceAgentProvi
       }, 10_000);
 
       ws.onopen = () => {
-        console.log('[VoiceAgent] WebSocket opened, sending config...');
-        // Send setup message — must use "config" key per Gemini Live API spec
+        console.log('[VoiceAgent] WebSocket opened, sending setup...');
         ws.send(JSON.stringify({
-          config: {
+          setup: {
             model: `models/${model}`,
+            generationConfig: {
               responseModalities: config.responseModalities,
               speechConfig: config.speechConfig,
+            },
             systemInstruction: {
               parts: [{ text: config.systemInstruction }],
             },
@@ -320,7 +322,13 @@ export default function VoiceAgentProvider({ locale, children }: VoiceAgentProvi
       };
 
       ws.onmessage = async (event) => {
-        const msg = JSON.parse(event.data as string);
+        let raw: string;
+        if (event.data instanceof Blob) {
+          raw = await event.data.text();
+        } else {
+          raw = event.data as string;
+        }
+        const msg = JSON.parse(raw);
         console.log('[VoiceAgent] Message:', JSON.stringify(msg).slice(0, 200));
 
         // Setup complete — Gemini sends back a setupComplete message