-Implements last-input priority for opposing directional keys so pressing a new direction while holding the previous one immediately takes precedence instead of stopping to neutral.
-Resumes movement in the original direction automatically when the newer opposing key is released while the first key remains held.
-Ramps direct 180-degree reversals through center magnitude along the target axis rather than sweeping around the outer perimeter to prevent perpendicular drift during quick strafe switches.
-Adds automated unit test coverage in the pad test suite to verify opposing key overrides, release resumptions, and center decays.