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/models.py

@@ -0,0 +1,103 @@
+from dataclasses import dataclass
+from datetime import datetime
+from typing import Optional, List
+
+
+@dataclass
+class User:
+    """Модель пользователя."""
+    user_id: int
+    first_name: str
+    full_name: str
+    username: Optional[str] = None
+    is_bot: bool = False
+    language_code: str = "ru"
+    emoji: str = "😊"
+    has_stickers: bool = False
+    date_added: Optional[str] = None
+    date_changed: Optional[str] = None
+    voice_bot_welcome_received: bool = False
+
+
+@dataclass
+class BlacklistUser:
+    """Модель пользователя в черном списке."""
+    user_id: int
+    message_for_user: Optional[str] = None
+    date_to_unban: Optional[int] = None
+    created_at: Optional[int] = None
+
+
+@dataclass
+class UserMessage:
+    """Модель сообщения пользователя."""
+    message_text: str
+    user_id: int
+    telegram_message_id: int
+    date: int
+
+
+@dataclass
+class TelegramPost:
+    """Модель поста из Telegram."""
+    message_id: int
+    text: str
+    author_id: int
+    helper_text_message_id: Optional[int] = None
+    created_at: Optional[int] = None
+
+
+@dataclass
+class PostContent:
+    """Модель контента поста."""
+    message_id: int
+    content_name: str
+    content_type: str
+
+
+@dataclass
+class MessageContentLink:
+    """Модель связи сообщения с контентом."""
+    post_id: int
+    message_id: int
+
+
+@dataclass
+class Admin:
+    """Модель администратора."""
+    user_id: int
+    role: str = "admin"
+    created_at: Optional[str] = None
+
+
+@dataclass
+class Migration:
+    """Модель миграции."""
+    version: int
+    script_name: str
+    created_at: Optional[str] = None
+
+
+@dataclass
+class AudioMessage:
+    """Модель аудио сообщения."""
+    file_name: str
+    author_id: int
+    date_added: str
+    file_id: str
+    listen_count: int = 0
+
+
+@dataclass
+class AudioListenRecord:
+    """Модель записи прослушивания аудио."""
+    file_name: str
+    user_id: int
+    is_listen: bool = False
+
+
+@dataclass
+class AudioModerate:
+    """Модель для voice bot."""
+    message_id: int
+    user_id: int