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>