chore: bump anthropic sdk version (#290)

Author: gewenyu99

package.json

@@ -31,8 +31,9 @@
   "typescript": {
     "definition": "dist/index.d.ts"
   },
+  
   "dependencies": {
-    "@anthropic-ai/claude-agent-sdk": "~0.1.65",
+    "@anthropic-ai/claude-agent-sdk": "0.2.50",
     "@clack/core": "^0.3.4",
     "@clack/prompts": "0.7.0",
     "@langchain/core": "^0.3.40",