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/agent/cli/non-interactive.ts

@@ -156,11 +156,8 @@ async function main() {
 
   // Build tools config if any tools options are set
   let toolsConfig: import("../tools/policy.js").ToolsConfig | undefined;
-  if (opts.toolsProfile || opts.toolsAllow || opts.toolsDeny) {
+  if (opts.toolsAllow || opts.toolsDeny) {
     toolsConfig = {};
-    if (opts.toolsProfile) {
-      toolsConfig.profile = opts.toolsProfile as any;
-    }
     if (opts.toolsAllow) {
       toolsConfig.allow = opts.toolsAllow;
     }