chore(deps): upgrade pi-ai and pi-agent-core to 0.52.9

Upgrade @mariozechner/pi-ai and @mariozechner/pi-agent-core from 0.50.3
to 0.52.9 to support latest models (claude-opus-4-6, o3, o3-mini).

Breaking type changes addressed:
- exactOptionalPropertyTypes: use conditional spread or `| undefined`
- TOOL_PROFILES removed: strip all profile references from CLI
- AgentMessage union requires timestamp: cast test fixtures
- AsyncAgent.id → sessionId
- Add explicit callback parameter types for SDK event handlers

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/console/app.controller.ts

@@ -44,7 +44,7 @@ export class AppController {
   @Post("agents")
   createAgent(@Body() body?: { id?: string }) {
     const agent = this.hub.createAgent(body?.id);
-    return { id: agent.id };
+    return { id: agent.sessionId };
   }
 
   @Delete("agents/:id")