Add configurable interval option to oneper cron setup

[sestinj]

Summary by cubic

Added a new --interval option to the setup-cron command, allowing users to set a custom update interval in minutes instead of the default 10 minutes.

• New Features
  • Users can now run oneper setup-cron --interval to choose how often automatic updates run.
  • Input is validated to ensure the interval is a positive integer.

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[cubic-dev-ai]

cubic analysis

No issues found across 1 file. Review in cubic