feat(core): 优化解压和哈希验证流程

- 在解压线程中添加已解压文件路径参数，支持直接使用已解压的补丁文件，提升解压效率。
- 更新下载管理器，简化下载成功后的处理逻辑，直接进入解压阶段，去除冗余的哈希验证步骤。
- 在离线模式管理器中增强哈希验证功能，确保在解压后进行哈希校验，提升补丁文件的完整性检查。
- 增强日志记录，确保在关键操作中提供详细的调试信息，便于后续排查和用户反馈。

source/workers/extraction_thread.py

@@ -7,25 +7,48 @@ from data.config import PLUGIN, GAME_INFO
 class ExtractionThread(QThread):
     finished = Signal(bool, str, str)  # success, error_message, game_version
 
-    def __init__(self, _7z_path, game_folder, plugin_path, game_version, parent=None):
+    def __init__(self, _7z_path, game_folder, plugin_path, game_version, parent=None, extracted_path=None):
         super().__init__(parent)
         self._7z_path = _7z_path
         self.game_folder = game_folder
         self.plugin_path = plugin_path
         self.game_version = game_version
+        self.extracted_path = extracted_path  # 添加已解压文件路径参数
 
     def run(self):
         try:
-            with py7zr.SevenZipFile(self._7z_path, mode="r") as archive:
-                archive.extractall(path=PLUGIN)
-            
-            os.makedirs(self.game_folder, exist_ok=True)
-            shutil.copy(self.plugin_path, self.game_folder)
-            
-            if self.game_version == "NEKOPARA After":
-                sig_path = os.path.join(PLUGIN, GAME_INFO[self.game_version]["sig_path"])
-                shutil.copy(sig_path, self.game_folder)
+            # 如果提供了已解压文件路径，直接使用它
+            if self.extracted_path and os.path.exists(self.extracted_path):
+                # 直接复制已解压的文件到游戏目录
+                os.makedirs(self.game_folder, exist_ok=True)
+                shutil.copy(self.extracted_path, self.game_folder)
                 
+                # 对于NEKOPARA After，还需要复制签名文件
+                if self.game_version == "NEKOPARA After":
+                    # 从已解压文件的目录中获取签名文件
+                    extracted_dir = os.path.dirname(self.extracted_path)
+                    sig_filename = os.path.basename(GAME_INFO[self.game_version]["sig_path"])
+                    sig_path = os.path.join(extracted_dir, sig_filename)
+                    
+                    # 如果签名文件存在，则复制它
+                    if os.path.exists(sig_path):
+                        shutil.copy(sig_path, self.game_folder)
+                    else:
+                        # 如果签名文件不存在，则使用原始路径
+                        sig_path = os.path.join(PLUGIN, GAME_INFO[self.game_version]["sig_path"])
+                        shutil.copy(sig_path, self.game_folder)
+            else:
+                # 如果没有提供已解压文件路径，执行正常的解压流程
+                with py7zr.SevenZipFile(self._7z_path, mode="r") as archive:
+                    archive.extractall(path=PLUGIN)
+                
+                os.makedirs(self.game_folder, exist_ok=True)
+                shutil.copy(self.plugin_path, self.game_folder)
+                
+                if self.game_version == "NEKOPARA After":
+                    sig_path = os.path.join(PLUGIN, GAME_INFO[self.game_version]["sig_path"])
+                    shutil.copy(sig_path, self.game_folder)
+                    
             self.finished.emit(True, "", self.game_version)
         except (py7zr.Bad7zFile, FileNotFoundError, Exception) as e:
             self.finished.emit(False, f"\n文件操作失败，请重试\n\n【错误信息】：{e}\n", self.game_version)