feat: явно указаны зависимости к Protocol для перехода к имплементации

src/usecase/__init__.py

@@ -296,7 +296,7 @@ class FetchChannelResponse(typing.Protocol):
     title: str
 
 
-class ParserClient(typing.Protocol):
+class Parser(typing.Protocol):
     async def fetch_telegram_channel(self, username: str) -> FetchChannelResponse | None: ...
 
 
@@ -305,7 +305,7 @@ class Usecase:
     database: Database
     telegram_bot: TelegramBotWriter
     jwt_encoder: JWTEncoder
-    parser_client: ParserClient
+    parser: Parser
 
     async def ensure_workspace_access(self, workspace_id: UUID, user_id: UUID) -> domain.Workspace:
         workspace = await self.database.get_workspace_for_user(workspace_id, user_id)

src/usecase/purchase_plan/attach_channel_to_purchase_plan.py

@@ -30,7 +30,7 @@ async def attach_channel_to_purchase_plan(
     channel = await self.database.get_channel(username=input.username)
 
     if not channel:
-        parser_response = await self.parser_client.fetch_telegram_channel(input.username)
+        parser_response = await self.parser.fetch_telegram_channel(input.username)
         if not parser_response:
             raise domain.TelegramChannelNotFound(input.username)