Third devlog! (I forgot to devlog…)

I fixed a bunch of serious bugs in the engine (illegal moves overwriting occupied tiles, allowing negative indexing of the board, and more). The minimax now scores wins/loses by token count, not positional advantage at the end of the game, and some documentation cleanup.

I also started working on the Flask backend, which now features 4 API routes for creating and joining games, making your move, and calling for AI moves.

I tested this thoroughly with cURL, so hopefully there aren’t any significant bugs!