qwen3-coder: support anyOf when parsing tool calls

model/parsers/qwen3coder.go

@@ -276,7 +276,14 @@ func parseToolCall(raw qwenEventRawToolCall, tools []api.Tool) (api.ToolCall, er
 		var paramType api.PropertyType
 		if matchedTool != nil && matchedTool.Function.Parameters.Properties != nil {
 			if prop, ok := matchedTool.Function.Parameters.Properties[parameter.Name]; ok {
-				paramType = prop.Type
+				// Handle anyOf by collecting all types from the union
+				if len(prop.AnyOf) > 0 {
+					for _, anyOfProp := range prop.AnyOf {
+						paramType = append(paramType, anyOfProp.Type...)
+					}
+				} else {
+					paramType = prop.Type
+				}
 			}
 		}