Add support for integers and tool configuration in schema handling

This update introduces support for `jsonschema.Integer` types and updates the logic to handle nested items in schemas. Added a new default error log for unknown types using `slog.Error`. Also, integrated tool configuration with a `FunctionCallingConfig` when `dontRequireTool` is false.

schema/GetType.go

@@ -28,22 +28,27 @@ func getFromType(t reflect.Type, b basic) Type {
 	switch t.Kind() {
 	case reflect.String:
 		b.DataType = jsonschema.String
+		b.typeName = "string"
 		return b
 
 	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
 		b.DataType = jsonschema.Integer
+		b.typeName = "integer"
 		return b
 
 	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
 		b.DataType = jsonschema.Integer
+		b.typeName = "integer"
 		return b
 
 	case reflect.Float32, reflect.Float64:
 		b.DataType = jsonschema.Number
+		b.typeName = "number"
 		return b
 
 	case reflect.Bool:
 		b.DataType = jsonschema.Boolean
+		b.typeName = "boolean"
 		return b
 
 	case reflect.Struct:
@@ -107,7 +112,7 @@ func getObject(t reflect.Type) object {
 	}
 
 	return object{
-		basic:  basic{DataType: jsonschema.Object},
+		basic:  basic{DataType: jsonschema.Object, typeName: "object"},
 		fields: fields,
 	}
 }
@@ -116,6 +121,7 @@ func getArray(t reflect.Type) array {
 	res := array{
 		basic: basic{
 			DataType: jsonschema.Array,
+			typeName: "array",
 		},
 	}