Recorded Movement Audio and Deliberate Pacing · GENERAL! devlog

Replaced synthesized placeholder movement sounds with CC0 recorded metal, leather, and horse-trot audio; provenance is documented in assets/audio/SOURCES.md.
Heavy and light formations now play staggered four-step variations instead of one repetitive impact.
Increased the normal resolution duration from 2.2 to 4 seconds.
Hid planned path arrows as soon as execution begins so they do not linger over moving formations.
Extended right-click advance-to-range behavior to every melee formation: unreachable enemy targets now produce an advance-toward-target order rather than a rejection.
Rebuilt the double-clickable bundle and passed order-controller, resolver, full-battle, and bundle syntax tests.