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Fixed wrong quota scope field name

Fixed wrong quota scope field name: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). The issue involves correcting the naming of the quota scope field. The current name scope is misleading and does not accurately represent its context.

The task

The issue involves correcting the naming of the `quota_scope` field. The current name `scope` is misleading and does not accurately represent its context.

Part of FineEnvs/MiMo-V2.6-RL-harbor-code.