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feat(ladder): add rolling ladder system with multi-server support#1

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dollannn wants to merge 4 commits intodevfrom
ex-ladder
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feat(ladder): add rolling ladder system with multi-server support#1
dollannn wants to merge 4 commits intodevfrom
ex-ladder

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@dollannn dollannn commented Feb 1, 2026

First iteration of the ladder module with:

  • Rolling ladders with day granularity (daily/weekly/monthly/alltime periods)
  • Gamemode + variation system for separate rankings per mode
  • Multi-server scalability with distributed locking (MySQL GET_LOCK)
  • Atomic score rebuilds to remove inactive players from rolling windows
  • ROW_NUMBER() ranking with deterministic tie-breakers
  • UTC-consistent date handling throughout
  • Auto-migration for existing databases
  • Daily snapshots for rank change tracking

Commands: /ladder, /ladderrank, /ladderstats
Admin: css_ladder_refresh [all], css_ladder_cleanup

dollannn and others added 4 commits February 1, 2026 20:01
First iteration of the ladder module with:

- Rolling ladders with day granularity (daily/weekly/monthly/alltime periods)
- Gamemode + variation system for separate rankings per mode
- Multi-server scalability with distributed locking (MySQL GET_LOCK)
- Atomic score rebuilds to remove inactive players from rolling windows
- ROW_NUMBER() ranking with deterministic tie-breakers
- UTC-consistent date handling throughout
- Auto-migration for existing databases
- Daily snapshots for rank change tracking

Commands: /ladder, /ladderrank, /ladderstats
Admin: css_ladder_refresh [all], css_ladder_cleanup
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