feat(kiro): 代码优化重构 + OpenAI翻译器实现

internal/translator/kiro/common/utils.go

@@ -0,0 +1,16 @@
+// Package common provides shared constants and utilities for Kiro translator.
+package common
+
+// GetString safely extracts a string from a map.
+// Returns empty string if the key doesn't exist or the value is not a string.
+func GetString(m map[string]interface{}, key string) string {
+	if v, ok := m[key].(string); ok {
+		return v
+	}
+	return ""
+}
+
+// GetStringValue is an alias for GetString for backward compatibility.
+func GetStringValue(m map[string]interface{}, key string) string {
+	return GetString(m, key)
+}