对齐c层与cj层错误码，修改测试以配合c层更新

src/bridge.cj

@@ -72,7 +72,7 @@ public class LuaError <: Exception {
         match (code) {
             case 5001 => "JSON file load failed"
             case 5002 => "Memory allocation failed"
-            case 5003 => "File load error (permission or path issue)"
+            case 5003 => "File load error (path, permission, or compile-time syntax issue)"
             case 5004 => "Script runner initialization failed"
             case 5005 => "Lua state machine initialization failed or corrupted"
             case 5006 => "JSON parse error (format issue)"
@@ -91,7 +91,7 @@ public class LuaError <: Exception {
             case 5019 => "Reset input file failed, may cause input pollution"
             case 5020 => "Error in callback functions"
             case 5021 => "change workdir error"
-            case 5022 => "Calling func no found"
+            case 5022 => "No callable chunk found"
             case _ => "Unknown error"
         }
     }
@@ -192,9 +192,9 @@ public class LuaRunner {
     /// 运行Lua脚本
     ///
     /// @param path 脚本路径
-    /// @param arg 传递给脚本的参数
+    /// @param arg 传递给脚本的单参数；管道模式下由底层按栈布局自动计算调用参数数量
     /// @return 脚本执行结果字符串
-    /// @throws LuaError 当脚本运行出错时抛出
+    /// @throws LuaError 当脚本编译或运行出错时抛出
     public func runScript(path: String, arg: String): String {
         let pathPtr = toCStr(path)
         let argPtr = toCStr(arg)