Enhance command structure and user feedback in task management

- Added SprintCmd to issues command group
- taskLoop hide survey related commands when in repl
- Updated coding task instructions for clarity
- Removed redundant SprintCmd registration
- Improved REPL command handling for better user experience avoiding a chash if users type pm
- Enhanced task UI to display additional information

internal/commands/issues/sprint.go

@@ -317,6 +317,4 @@ func init() {
 	SprintCmd.AddCommand(SprintAddCmd)
 	SprintCmd.AddCommand(SprintRemoveCmd)
 	SprintCmd.AddCommand(SprintDeleteCmd)
-
-	RootCmd.AddCommand(SprintCmd)
 }