Refactor metrics handling and improve logging

- Removed the MetricsManager initialization from `run_helper.py` to avoid duplication, as metrics are now handled in `main.py`.
- Updated logging levels in `server_prometheus.py` and `metrics_middleware.py` to use debug instead of info for less critical messages.
- Added metrics configuration to `BaseDependencyFactory` for better management of metrics settings.
- Deleted the obsolete `metrics_exporter.py` file to streamline the codebase.
- Updated various tests to reflect changes in the metrics handling and ensure proper functionality.

tests/test_voice_utils.py

@@ -39,70 +39,83 @@ class TestVoiceUtils:
         message.chat.id = 456
         return message
     
-    def test_get_last_message_text(self, mock_bot_db):
+    @pytest.mark.asyncio
+    async def test_get_last_message_text(self, mock_bot_db):
         """Тест получения последнего сообщения"""
-        mock_bot_db.last_date_audio.return_value = "2025-01-01 12:00:00"
+        # Возвращаем UNIX timestamp
+        from unittest.mock import AsyncMock
+        mock_bot_db.last_date_audio = AsyncMock(return_value=1641034800)  # 2022-01-01 12:00:00
         
-        result = get_last_message_text(mock_bot_db)
+        result = await get_last_message_text(mock_bot_db)
         
         assert result is not None
-        assert "минут" in result or "часа" in result or "дня" in result
+        assert "минут" in result or "часа" in result or "дня" in result or "день" in result or "дней" in result
         mock_bot_db.last_date_audio.assert_called_once()
     
-    def test_validate_voice_message_valid(self):
+    @pytest.mark.asyncio
+    async def test_validate_voice_message_valid(self):
         """Тест валидации голосового сообщения"""
         mock_message = Mock()
         mock_message.content_type = 'voice'
         mock_message.voice = Mock()
         
-        result = validate_voice_message(mock_message)
+        result = await validate_voice_message(mock_message)
         
         assert result is True
     
-    def test_validate_voice_message_invalid(self):
+    @pytest.mark.asyncio
+    async def test_validate_voice_message_invalid(self):
         """Тест валидации невалидного сообщения"""
         mock_message = Mock()
         mock_message.voice = None
         
-        result = validate_voice_message(mock_message)
+        result = await validate_voice_message(mock_message)
         
         assert result is False
     
-    def test_get_user_emoji_safe_with_emoji(self, mock_bot_db):
+    @pytest.mark.asyncio
+    async def test_get_user_emoji_safe_with_emoji(self, mock_bot_db):
         """Тест безопасного получения эмодзи пользователя когда эмодзи есть"""
-        mock_bot_db.check_emoji_for_user.return_value = "😊"
+        from unittest.mock import AsyncMock
+        mock_bot_db.get_user_emoji = AsyncMock(return_value="😊")
         
-        result = get_user_emoji_safe(mock_bot_db, 123)
+        result = await get_user_emoji_safe(mock_bot_db, 123)
         
         assert result == "😊"
-        mock_bot_db.check_emoji_for_user.assert_called_once_with(123)
+        mock_bot_db.get_user_emoji.assert_called_once_with(123)
     
-    def test_get_user_emoji_safe_without_emoji(self, mock_bot_db):
+    @pytest.mark.asyncio
+    async def test_get_user_emoji_safe_without_emoji(self, mock_bot_db):
         """Тест безопасного получения эмодзи пользователя когда эмодзи нет"""
-        mock_bot_db.check_emoji_for_user.return_value = None
+        from unittest.mock import AsyncMock
+        mock_bot_db.get_user_emoji = AsyncMock(return_value=None)
         
-        result = get_user_emoji_safe(mock_bot_db, 123)
+        result = await get_user_emoji_safe(mock_bot_db, 123)
         
         assert result == "😊"
-        mock_bot_db.check_emoji_for_user.assert_called_once_with(123)
+        mock_bot_db.get_user_emoji.assert_called_once_with(123)
     
-    def test_get_user_emoji_safe_with_empty_emoji(self, mock_bot_db):
+    @pytest.mark.asyncio
+    async def test_get_user_emoji_safe_with_empty_emoji(self, mock_bot_db):
         """Тест безопасного получения эмодзи пользователя с пустым эмодзи"""
-        mock_bot_db.check_emoji_for_user.return_value = ""
+        from unittest.mock import AsyncMock
+        mock_bot_db.get_user_emoji = AsyncMock(return_value="")
         
-        result = get_user_emoji_safe(mock_bot_db, 123)
+        result = await get_user_emoji_safe(mock_bot_db, 123)
         
         assert result == "😊"
-        mock_bot_db.check_emoji_for_user.assert_called_once_with(123)
+        mock_bot_db.get_user_emoji.assert_called_once_with(123)
     
-    def test_get_user_emoji_safe_with_error(self, mock_bot_db):
+    @pytest.mark.asyncio
+    async def test_get_user_emoji_safe_with_error(self, mock_bot_db):
         """Тест безопасного получения эмодзи пользователя при ошибке"""
-        mock_bot_db.check_emoji_for_user.return_value = "Ошибка"
+        from unittest.mock import AsyncMock
+        mock_bot_db.get_user_emoji = AsyncMock(return_value="Ошибка")
         
-        result = get_user_emoji_safe(mock_bot_db, 123)
+        result = await get_user_emoji_safe(mock_bot_db, 123)
         
         assert result == "Ошибка"
-        mock_bot_db.check_emoji_for_user.assert_called_once_with(123)
+        mock_bot_db.get_user_emoji.assert_called_once_with(123)
     
     def test_format_time_ago_minutes(self):
         """Тест форматирования времени в минутах"""