Battle UI Icon HQ Gapfix v1

Date: 2026-07-09

Scope

Reworked the remaining low-detail battle UI atlas frames: attack (4), axe (10), and terrain (18).
Kept the runtime atlas layout unchanged at 5 columns x 6 rows, 128 px per frame.
Updated the generator to seed from the existing high-quality battle UI atlas and replace only the gap frames.
Built the new icons from project-owned visual material and existing project atlas frames.

python -m py_compile scripts\build-battle-ui-icons.py passed.
pnpm run verify:static-data passed with the bundled workspace runtime.
pnpm run build passed with the bundled workspace runtime.
Browser preview passed at http://127.0.0.1:4191/heros_web/?debug&debugBattle=first-battle-zhuo-commandery&debugBattleSetup=attack-preview&v=ui-icon-gapfix.
Deployment and battle screens rendered with 0 console errors; Guan Yu's unit panel showed the updated attack and terrain icon surfaces cleanly at in-game UI scale.

Pixel comparison against docs/battle-ui-icons-hq-batch1-atlas.png changed only frames 4, 10, and 18.
The terrain icon uses a cropped detail from the project battle map source instead of a low-detail vector sketch.