Announce top-three leaderboard changes

[msaroufim]

What changed

• watch every leaderboard/GPU podium through the shared database, including API-originated submissions
• seed current standings silently when Kernelbot starts, then poll every 15 seconds
• congratulate new winners and top-three entrants with randomized GPU-themed copy
• roast displaced and dethroned users with randomized copy while using their public leaderboard username and never pinging Discord accounts
• retry unacknowledged changes after transient Discord failures

Why

Most submissions now arrive through the API while people still gather in Discord and read rankings on gpumode.com. Discord-only submission hooks therefore miss the leaderboard moments worth celebrating.

Behavior

• the first three submissions fill the podium without trash talk
• existing standings are not replayed after bot restarts
• personal bests that do not change podium membership or first place remain silent
• new leaderboards and all configured GPU types are discovered automatically

Validation

• ruff check src/kernelbot/top_three.py src/kernelbot/cogs/top_three_cog.py tests/test_top_three.py src/kernelbot/main.py
• PYTHONPATH=/Users/mark/Dev/kernelbot-top-three-pr/src pytest -q tests/test_top_three.py (10 passed)
• python -m compileall -q src/kernelbot
• end-to-end in-process test covers startup seed, simulated API database update, and Discord channel send

An actual staging Discord connection could not be performed because DISCORD_DEBUG_TOKEN is absent from the local environment, macOS Keychain, and the connected Infisical dev/staging/prod environments. The production token was intentionally not reused for staging.

[github-actions]

Coverage report

Click to see where and how coverage changed

File	Statements	Missing	Coverage	Coverage (new stmts)	Lines missing
src/libkernelbot
utils.py
Project Total

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