Built the core game loop — watch typing replay and guess who typed it

The main thing working now: the app generates a typing session (either a real simulated human or one of three bot profiles), then lets you call it; human or automated. After guessing, you get a full breakdown.

Spent an embarrassing amount of time on the IKI autocorrelation feature 😭😭🙏🙏🙏🙏 or it shouldve been done wayy before

This is currently playable