CARD PAO-4 (A3)  written 2026-09-26 01:05:03 -0700  -- BEFORE its first compile
base: pao3. D: /Od RTC descriptor 0x4ca678 of path_add_step names its 8-byte vector local 'desired_direction'
  ([ebp-0x14]); ours is 'direction'. correction: rename the local (4 uses in path_add_step).
prediction: byte-inert (0 changed).
