Fix default LLM model to claude-3-haiku (compatible with API key tier)

agents/test_llm.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+import sys
+sys.path.insert(0, "/app/agents")
+from shared import api_request, DASHBOARD_API
+from llm_client import get_llm_config, DEFAULT_MODELS
+
+# Check what config the user has
+config = api_request(f"{DASHBOARD_API}/api/users/2/llm", retries=1)
+print(f"LLM config: {config}")
+print(f"Default model for anthropic: {DEFAULT_MODELS.get('anthropic')}")
+
+# Try a simple completion
+from llm_client import complete
+try:
+    result = complete(2, "Say hello in one sentence.", max_tokens=50)
+    print(f"Success: {result}")
+except Exception as e:
+    print(f"Error: {e}")