Two-player mode with client assignment, 3D vector calibration for cylindrical
pods, lives, tap/double-tap boost with low-intensity LED cooldown feedback,
and Kenney sprite assets.
Co-authored-by: Cursor <cursoragent@cursor.com>
Replace separate accel/tap push handling with input messages, set_input_stream, and a single set_stream on port 8081.
Co-authored-by: Cursor <cursoragent@cursor.com>