refactor(handlers): refactor COMMAND attribute as property

src/bot/handlers/abstract_command_handler.py

@@ -21,7 +21,16 @@ class AbstractCommandHandler(ABC):
         COMMAND (`str`): The name of the command that this handler handles.
     """
     
-    COMMAND: str = ""
+    @property
+    @abstractmethod
+    def COMMAND(self) -> str:
+        """
+        The name of the command that this handler handles.
+
+        Returns:
+            str: The command name.
+        """
+        pass
 
     @abstractmethod
     def get_filters(self) -> Filter:

src/bot/handlers/ai_command_handler.py

@@ -19,14 +19,11 @@ class AICommandHandler(AbstractCommandHandler):
     and returns the generated response.
 
     Attributes:
+        COMMAND (`str`): The name of the command that this handler handles.
         logger (`Logger`): Logger instance for logging events.
         gigachat_client (`GigaChatClient`): Client for interacting with the GigaChat API.
-        COMMAND (`str`): The name of the command that this handler handles.
     """
 
-    # The name of the command that this handler handles
-    COMMAND: str = "ai"
-
     def __init__(self, logger: Logger, gigachat_client: GigaChatClient) -> None:
         """
         Initializes the AICommandHandler.
@@ -37,6 +34,16 @@ class AICommandHandler(AbstractCommandHandler):
         """
         self.logger: Logger = logger
         self.gigachat_client: GigaChatClient = gigachat_client
+        
+    @property
+    def COMMAND(self) -> str:
+        """
+        The name of the command that this handler handles.
+
+        Returns:
+            str: The command name.
+        """
+        return "ai"
 
     def get_filters(self) -> Filter:
         """

src/bot/handlers/video_command_handler.py

@@ -29,9 +29,6 @@ class VideoCommandHandler(AbstractCommandHandler):
         logger (`Logger`): Logger instance for logging events.
     """
 
-    # The name of the command that this handler handles
-    COMMAND: str = "video"
-
     # Mapping of language codes to their aliases
     LANGUAGE_ALIASES: dict[str, list[str]] = {
         "en": ["en", "eng", "english"],
@@ -61,6 +58,16 @@ class VideoCommandHandler(AbstractCommandHandler):
             `pyrogram.filters.Filter`: A Pyrogram filter matching the /video command.
         """
         return filters.command(self.COMMAND)
+    
+    @property
+    def COMMAND(self) -> str:
+        """
+        The name of the command that this handler handles.
+
+        Returns:
+            str: The command name.
+        """
+        return "video"
 
     async def handle(self, client: Client, message: Message) -> None:
         """

src/bot/handlers/voice_command_handler.py

@@ -27,9 +27,6 @@ class VoiceCommandHandler(AbstractCommandHandler):
         logger (`Logger`): Logger instance for logging events.
     """
 
-    # The name of the command that this handler handles
-    COMMAND: str = "voice"
-
     # Mapping of language codes to their aliases
     LANGUAGE_ALIASES: dict[str, list[str]] = {
         "en": ["en", "eng", "english"],
@@ -50,6 +47,16 @@ class VoiceCommandHandler(AbstractCommandHandler):
             logger (`Logger`): Logger instance for logging events.
         """
         self.logger: Logger = logger
+    
+    @property
+    def COMMAND(self) -> str:
+        """
+        The name of the command that this handler handles.
+
+        Returns:
+            str: The command name.
+        """
+        return "voice"
 
     def get_filters(self) -> Filter:
         """