allow multiple tool calls, log warnings if there are duplicate calls.

controlled via a flag to the agent config:
allow_multiple_tool_calls = true

config.coach-player.example.toml

@@ -33,4 +33,5 @@ temperature = 0.3  # Slightly higher temperature for more creative implementatio
 [agent]
 fallback_default_max_tokens = 8192
 enable_streaming = true
-timeout_seconds = 60
+timeout_seconds = 60
+allow_multiple_tool_calls = true  # Enable multiple tool calls, will usually only work with Anthropic