Enhance bot functionality and refactor database interactions

- Added `ca-certificates` installation to Dockerfile for improved network security.
- Updated health check command in Dockerfile to include better timeout handling.
- Refactored `run_helper.py` to implement proper signal handling and logging during shutdown.
- Transitioned database operations to an asynchronous model in `async_db.py`, improving performance and responsiveness.
- Updated database schema to support new foreign key relationships and optimized indexing for better query performance.
- Enhanced various bot handlers to utilize async database methods, improving overall efficiency and user experience.
- Removed obsolete database and fix scripts to streamline the project structure.

database/repository_factory.py

@@ -0,0 +1,79 @@
+from typing import Optional
+from database.repositories.user_repository import UserRepository
+from database.repositories.blacklist_repository import BlacklistRepository
+from database.repositories.message_repository import MessageRepository
+from database.repositories.post_repository import PostRepository
+from database.repositories.admin_repository import AdminRepository
+from database.repositories.audio_repository import AudioRepository
+
+
+class RepositoryFactory:
+    """Фабрика для создания репозиториев."""
+    
+    def __init__(self, db_path: str):
+        self.db_path = db_path
+        self._user_repo: Optional[UserRepository] = None
+        self._blacklist_repo: Optional[BlacklistRepository] = None
+        self._message_repo: Optional[MessageRepository] = None
+        self._post_repo: Optional[PostRepository] = None
+        self._admin_repo: Optional[AdminRepository] = None
+        self._audio_repo: Optional[AudioRepository] = None
+    
+    @property
+    def users(self) -> UserRepository:
+        """Возвращает репозиторий пользователей."""
+        if self._user_repo is None:
+            self._user_repo = UserRepository(self.db_path)
+        return self._user_repo
+    
+    @property
+    def blacklist(self) -> BlacklistRepository:
+        """Возвращает репозиторий черного списка."""
+        if self._blacklist_repo is None:
+            self._blacklist_repo = BlacklistRepository(self.db_path)
+        return self._blacklist_repo
+    
+    @property
+    def messages(self) -> MessageRepository:
+        """Возвращает репозиторий сообщений."""
+        if self._message_repo is None:
+            self._message_repo = MessageRepository(self.db_path)
+        return self._message_repo
+    
+    @property
+    def posts(self) -> PostRepository:
+        """Возвращает репозиторий постов."""
+        if self._post_repo is None:
+            self._post_repo = PostRepository(self.db_path)
+        return self._post_repo
+    
+    @property
+    def admins(self) -> AdminRepository:
+        """Возвращает репозиторий администраторов."""
+        if self._admin_repo is None:
+            self._admin_repo = AdminRepository(self.db_path)
+        return self._admin_repo
+    
+    @property
+    def audio(self) -> AudioRepository:
+        """Возвращает репозиторий аудио."""
+        if self._audio_repo is None:
+            self._audio_repo = AudioRepository(self.db_path)
+        return self._audio_repo
+    
+    async def create_all_tables(self):
+        """Создает все таблицы в базе данных."""
+        await self.users.create_tables()
+        await self.blacklist.create_tables()
+        await self.messages.create_tables()
+        await self.posts.create_tables()
+        await self.admins.create_tables()
+        await self.audio.create_tables()
+    
+    async def check_database_integrity(self):
+        """Проверяет целостность базы данных."""
+        await self.users.check_database_integrity()
+    
+    async def cleanup_wal_files(self):
+        """Очищает WAL файлы."""
+        await self.users.cleanup_wal_files()