feat: Cron job to gather Github info and digest them to a SQLite database

[ZibanPirate]

• A cron gather Github information about repos listed in dzcode, and digest it into database.
• we then use this database instead of always querying Github, which is both slow and fragile.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (changes that require a fresh clone of the repo)
• I'm not sure

[github-advanced-security]

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