aoc commands need to support 12 day advent and no global leaderboard #155
Description
This year, AOC is only 12 days long, and there is no global leaderboard.
https://adventofcode.com/2025/about#faq_num_days
Robin may already support 12 days, but it seems there are some places in revival of code that will need to support this new development.
Any code relating to this year and global leaderboard should be removed, and any commands that assume days 13-25 exist should respect the number of days in the year: 25 for 2015-2024, and 12 for 2025+.