refactor: remove Gorse integration and implement HotRank feature

- Removed Gorse-related configurations, handlers, and dependencies from the codebase.
- Introduced HotRank feature with configuration options for ranking posts based on recent activity.
- Updated application structure to support HotRank processing, including new caching mechanisms and database interactions.
- Cleaned up related DTOs and repository methods to reflect the removal of Gorse and the addition of HotRank functionality.

cmd/server/wire.go

@@ -35,7 +35,6 @@ func ProvideRouter(
 	systemMessageHandler *handler.SystemMessageHandler,
 	groupHandler *handler.GroupHandler,
 	stickerHandler *handler.StickerHandler,
-	gorseHandler *handler.GorseHandler,
 	voteHandler *handler.VoteHandler,
 	scheduleHandler *handler.ScheduleHandler,
 	roleHandler *handler.RoleHandler,
@@ -62,7 +61,6 @@ func ProvideRouter(
 		systemMessageHandler,
 		groupHandler,
 		stickerHandler,
-		gorseHandler,
 		voteHandler,
 		scheduleHandler,
 		roleHandler,