fix: 更新 magisk.py 文件，重构构造函数以接受目标架构作为必需参数，确保命令行参数的灵活性和可配置性。

magisk.py

@@ -34,7 +34,7 @@ def run_command(cmd):
 
 
 class Magisk:
-    def __init__(self, target_arch="arm64"):
+    def __init__(self, target_arch):
         self.download_loc = os.path.join(os.path.dirname(os.path.abspath(__file__)), "downloads")
         self.dl_link = "https://github.com/topjohnwu/Magisk/releases/download/v30.2/Magisk-v30.2.apk"
         self.dl_file_name = os.path.join(self.download_loc, "magisk.apk")
@@ -160,8 +160,8 @@ def main():
     
     parser.add_argument('--arch', 
                         choices=['x86', 'x86_64', 'arm', 'arm64'],
-                        default='arm64',
-                        help='指定目标架构 (默认: arm64)')
+                        required=True,
+                        help='指定目标架构 (必需)')
     
     args = parser.parse_args()