v0.1.1 — Limit Maze Size

[0.1.1] limit maze size

Added

• Maze size limit: Mazes are now limited to 32x32. Mazes exceeding this limit will receive a score of 0 with an error message.
• Updated benchmarks/maze/prompt.md with new size constraint for LLM guidance.

Changed

• grade_maze() in benchmarks/maze/evaluator.py now validates maze dimensions before scoring.