Add high resolution battle icon samples

docs/battle-ui-icons-hq-sample-v1-report.md

@@ -0,0 +1,41 @@
+# Battle UI Icon HQ Sample v1
+
+Date: 2026-07-03
+
+## Scope
+
+This sample reworks eight battle UI icons into a higher-resolution hand-painted raster direction:
+
+- might
+- intelligence
+- leadership
+- defense
+- move
+- sword
+- spear
+- strategy
+
+The atlas frame size was raised from 64px to 128px. Non-sample icons were preserved by upscaling the existing frames so the atlas layout remains compatible while the sample set can be reviewed in-game.
+
+## Outputs
+
+- Source generation sheet: `docs/battle-ui-icons-hq-sample-v1-source.png`
+- Sample contact sheet: `docs/battle-ui-icons-hq-sample-v1-contact.png`
+- Before/after comparison: `docs/battle-ui-icons-hq-sample-v1-before-after.png`
+- Battle UI browser check: `docs/battle-ui-icons-hq-sample-v1-battle-ui.png`
+- Applied atlas copy: `docs/battle-ui-icons-hq-sample-v1-atlas.png`
+- Previous atlas reference: `docs/battle-ui-icons-hq-sample-v1-before-atlas.png`
+- Runtime atlas: `src/assets/images/ui/battle-ui-icons.png`
+
+## Verification
+
+- Build: `pnpm build` passed.
+- Browser: local PC preview at `http://127.0.0.1:4189/heros_web/?v=hq-icon-sample-local`.
+- Console errors: none observed during the battle UI check.
+- The eight sample icons are visible in the unit detail and command UI. Individual strategy-list spell icons still use the older style and should be part of the post-approval full icon expansion.
+
+## Quality Notes
+
+- The sample icons use heavier silhouettes, dark outlines, painterly highlights, and material cues for metal, leather, cloth, bamboo, parchment, and armor.
+- They are intended to remain readable at 50-80px UI display sizes.
+- The current sample intentionally stops at eight icons. The remaining icons should be reworked only after this visual direction is approved.

src/game/data/battleUiIcons.ts

@@ -3,7 +3,7 @@ import Phaser from 'phaser';
 import battleUiIconsUrl from '../../assets/images/ui/battle-ui-icons.png';
 
 export const battleUiIconTextureKey = 'battle-ui-icons';
-export const battleUiIconFrameSize = 64;
+export const battleUiIconFrameSize = 128;
 
 export const battleUiIconFrames = {
   hp: 0,