fix: 脚本执行前直接插入 import 语句，根治 PluginContext 找不到

par-core/src/main/java/com/par/core/adapter/GroovyScriptEngine.java

@@ -5,8 +5,6 @@ import groovy.lang.Binding;
 import groovy.lang.GroovyClassLoader;
 import groovy.lang.GroovyShell;
 import lombok.extern.slf4j.Slf4j;
-import org.codehaus.groovy.control.CompilerConfiguration;
-import org.codehaus.groovy.control.customizers.ImportCustomizer;
 import org.jsoup.Jsoup;
 import org.springframework.stereotype.Service;
 
@@ -23,18 +21,12 @@ import java.util.*;
 public class GroovyScriptEngine {
 
     private static final ObjectMapper objectMapper = new ObjectMapper();
-    private static final GroovyClassLoader classLoader;
-
-    static {
-        ImportCustomizer imports = new ImportCustomizer();
-        imports.addStarImports("groovy.json");
-        imports.addStarImports("com.par.core.adapter");
-
-        CompilerConfiguration config = new CompilerConfiguration();
-        config.addCompilationCustomizers(imports);
-
-        classLoader = new GroovyClassLoader(Thread.currentThread().getContextClassLoader(), config);
-    }
+    private static final GroovyClassLoader classLoader = new GroovyClassLoader(
+            Thread.currentThread().getContextClassLoader());
+    /** 脚本前缀：自动导入必要包 + PluginContext 桩 */
+    private static final String SCRIPT_PREFIX =
+            "import groovy.json.*\n" +
+            "import com.par.core.adapter.*\n";
 
     @SuppressWarnings("unchecked")
     public Map<String, Object> execute(String groovyScript, String content, String url) {
@@ -49,7 +41,7 @@ public class GroovyScriptEngine {
             binding.setVariable("utils", new ScriptUtils());
 
             GroovyShell shell = new GroovyShell(classLoader, binding);
-            Object scriptResult = shell.evaluate(groovyScript);
+            Object scriptResult = shell.evaluate(SCRIPT_PREFIX + groovyScript);
 
             return buildResult(result, scriptResult);
         } catch (Exception e) {