feat: HttpUtils共享类，注入为http变量，PAR和mediabo两边统一API

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

@@ -71,6 +71,7 @@ public class GroovyScriptEngine {
             binding.setVariable("jsoup", new JsoupHelper());
             binding.setVariable("json", objectMapper);
             binding.setVariable("utils", new ScriptUtils());
+            binding.setVariable("http", new HttpUtils());
 
             GroovyShell shell = new GroovyShell(classLoader, binding);
             String fullScript = SCRIPT_PREFIX + groovyScript + "\n// PAR 调用入口\nreturn parse(content, url)";

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

@@ -0,0 +1,55 @@
+package com.par.core.adapter;
+
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+import java.time.Duration;
+
+/**
+ * HTTP 工具类，注入到 Groovy 脚本中（变量名 http）。
+ * 提供 get/post 两个方法，PAR 和 mediabot 各注入自己的实现。
+ * 脚本中使用：http.get(url, cookie) / http.post(url, body, auth)
+ */
+public class HttpUtils {
+
+    private static final HttpClient client = HttpClient.newBuilder()
+            .connectTimeout(Duration.ofSeconds(10))
+            .followRedirects(HttpClient.Redirect.NORMAL)
+            .build();
+
+    /** GET 请求 */
+    public String get(String url, String cookie) {
+        try {
+            var builder = HttpRequest.newBuilder()
+                    .uri(URI.create(url))
+                    .timeout(Duration.ofSeconds(15))
+                    .header("User-Agent", "PAR/1.0")
+                    .GET();
+            if (cookie != null && !cookie.isBlank()) builder.header("Cookie", cookie);
+            return client.send(builder.build(), HttpResponse.BodyHandlers.ofString()).body();
+        } catch (Exception e) {
+            throw new RuntimeException("HTTP GET failed: " + url, e);
+        }
+    }
+
+    /** POST JSON 请求 */
+    public String post(String url, String body, String auth) {
+        try {
+            var builder = HttpRequest.newBuilder()
+                    .uri(URI.create(url))
+                    .timeout(Duration.ofSeconds(15))
+                    .header("User-Agent", "PAR/1.0")
+                    .header("Content-Type", "application/json");
+            if (auth != null && !auth.isBlank()) {
+                if (auth.startsWith("Bearer") || auth.toLowerCase().startsWith("x-api-key"))
+                    builder.header("Authorization", auth);
+                else builder.header("Cookie", auth);
+            }
+            builder.POST(HttpRequest.BodyPublishers.ofString(body != null ? body : ""));
+            return client.send(builder.build(), HttpResponse.BodyHandlers.ofString()).body();
+        } catch (Exception e) {
+            throw new RuntimeException("HTTP POST failed: " + url, e);
+        }
+    }
+}