feat(operit): 增强转译层并接入 5 个 Operit 市场插件

operit_loader.py:
- OkHttp 新增 newClient()（真实市场插件普遍使用，而非 newBuilder）
- OkHttpRequest.execute() 改为 async，与 Operit 运行时异步语义对齐
- OkHttpResponse 新增 json() 与 statusMessage()（基于 http.HTTPStatus）

operit_translate.py（新增）:
- Operit .ts 插件 -> xiaoli-cli .py 脚手架生成器
- 自动提取 METADATA、生成 exports 胶水，原 TS 作参考注释保留

plugins/operit_scripts/ 新增 5 个已跑通的真实插件:
- market_time        时间查询/格式化
- market_duckduckgo  网页内容抓取与清洗
- market_crossref    Crossref 学术文献检索
- market_network_test HTTP 连通性测试
- market_reader      本地代码递归搜索

注: 工具需注册为 async 包装函数，同步 lambda 会导致 complete() 不执行的假阳性

plugins/operit_scripts/market_reader.py

@@ -0,0 +1,85 @@
+# METADATA
+# {
+#   "name": "reader",
+#   "display_name": { "zh": "代码读取器", "en": "Code Reader" },
+#   "description": { "zh": "在文件夹中搜索匹配的代码（本地文件，无需 Android）", "en": "Search matching code in a folder." },
+#   "category": "File",
+#   "tools": [
+#     { "name": "search_code_in_folder", "description": { "zh": "在文件夹中搜索匹配的代码", "en": "Search matching code in a folder" } }
+#   ]
+# }
+import os
+import re
+
+
+def getErrorMessage(error):
+    return str(error) if error else "unknown"
+
+
+def getErrorStack(error):
+    import traceback
+    return traceback.format_exc()
+
+
+async def search_code_in_folder(params):
+    folder_path = params.get("folder_path")
+    pattern = params.get("pattern")
+    file_extensions = params.get("file_extensions", ".js,.ts,.jsx,.tsx,.java,.cs,.py")
+    recursive = str(params.get("recursive", "true")).lower() in ("true", "1", "yes")
+    if not folder_path:
+        return {"success": False, "message": "文件夹路径不能为空"}
+    if not pattern:
+        return {"success": False, "message": "搜索模式不能为空"}
+    try:
+        exts = [e.strip().lower() for e in file_extensions.split(",") if e.strip()]
+        rx = re.compile(pattern, re.MULTILINE)
+        files = []
+        if recursive:
+            for root, _, fnames in os.walk(folder_path):
+                for fn in fnames:
+                    if any(fn.lower().endswith(e) for e in exts):
+                        files.append(os.path.join(root, fn))
+        else:
+            for fn in os.listdir(folder_path):
+                fp = os.path.join(folder_path, fn)
+                if os.path.isfile(fp) and any(fn.lower().endswith(e) for e in exts):
+                    files.append(fp)
+
+        results = []
+        for fp in files:
+            try:
+                with open(fp, "r", encoding="utf-8", errors="replace") as fh:
+                    content = fh.read()
+            except Exception as e:
+                console.error(f"处理文件 {fp} 时出错: {getErrorMessage(e)}")
+                continue
+            matches = []
+            for m in rx.finditer(content):
+                ln = content.count("\n", 0, m.start()) + 1
+                matches.append({"match": m.group(0), "line": ln,
+                                 "content": content.split("\n")[ln - 1] if ln - 1 < len(content.split("\n")) else ""})
+            if matches:
+                results.append({"file": fp, "matches": matches})
+        total = sum(len(r["matches"]) for r in results)
+        return {"success": True, "message": f"在 {len(files)} 个文件中找到 {total} 处匹配",
+                "data": {"files_searched": len(files), "files_with_matches": len(results),
+                         "total_matches": total, "results": results[:50]}}
+    except Exception as e:
+        return {"success": False, "message": f"搜索失败: {getErrorMessage(e)}"}
+
+
+async def wrap(func, params, ok_msg="操作成功", err_msg="操作失败"):
+    try:
+        result = await func(params)
+        complete({"success": True, "message": result.get("message", ok_msg),
+                   "data": result.get("data"), **{k: v for k, v in result.items() if k not in ("success", "message", "data")}})
+    except Exception as error:
+        console.error(f"Error: {getErrorMessage(error)}")
+        complete({"success": False, "message": getErrorMessage(error), "error_stack": getErrorStack(error)})
+
+
+async def search_code_in_folder_wrapper(params):
+    await wrap(search_code_in_folder, params, "代码搜索完成", "代码搜索失败")
+
+
+exports.search_code_in_folder = search_code_in_folder_wrapper