fix: stabilize transport-ready test timing

src/agents/pi-embedded-runner/run/attempt.ts

@@ -325,12 +325,7 @@ export async function runEmbeddedAttempt(
       // Force a stable streamFn reference so vitest can reliably mock @mariozechner/pi-ai.
       activeSession.agent.streamFn = streamSimple;
 
-      applyExtraParamsToAgent(
-        activeSession.agent,
-        params.config,
-        params.provider,
-        params.modelId,
-      );
+      applyExtraParamsToAgent(activeSession.agent, params.config, params.provider, params.modelId);
 
       try {
         const prior = await sanitizeSessionHistory({