feat: Add debug compatibility mode for localization lookup failures in README files

Author: BAKAOLC

README.md

@@ -11,6 +11,18 @@ There is currently no conflict between this library and BaseMod.
 
 Documentation index: [Docs/README.md](Docs/README.md)
 
+## Debug Compatibility Mode
+
+RitsuLib provides a debug compatibility mode for localization lookup failures.
+
+- Setting: debug_compatibility_mode
+- Default: disabled (false)
+- Behavior when enabled: missing LocTable keys no longer throw immediately; they fall back to key placeholder text and emit a warning log.
+
+Settings file path on Windows:
+
+%appdata%\SlayTheSpire2\steam\<user_id>\mod_data\com.ritsukage.sts2-RitsuLib\settings.json
+
 ## License
 
 MIT

README.zh.md

@@ -11,6 +11,18 @@ English README: [README.md](README.md)
 
 文档入口: [Docs/README.md](Docs/README.md)
 
+## Debug 兼容模式
+
+RitsuLib 提供了一个用于本地化缺失场景的 debug 兼容模式。
+
+- 配置项: debug_compatibility_mode
+- 默认值: 关闭（false）
+- 开启后行为: LocTable 缺失键不再直接抛异常，而是回退为 Key 占位符并输出警告日志。
+
+Windows 下 settings 文件路径:
+
+%appdata%\SlayTheSpire2\steam\<user_id>\mod_data\com.ritsukage.sts2-RitsuLib\settings.json
+
 ## 许可证
 
 MIT