Improve sixty-sixth battle map detail

docs/visual-asset-sixty-sixth-map-repaint-v1-report.md

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+# Sixty-Sixth Battle Map Repaint v1
+
+Date: 2026-07-10
+
+Target: `sixty-sixth-battle-wuzhang-final` / `battle-map-sixty-sixth`
+
+## Changes
+
+- Added the `wuzhang-final` detail profile to `scripts/generate-handpaint-map-sample.py`.
+- Regenerated `src/assets/images/battle/sixty-sixth-battle-map.webp` from the scenario terrain with desktop runtime output at 64 px/tile.
+- Added late-campaign Wuzhang details: dry ridge strokes, road ruts, footstep marks, return-route supply carts, ledger tents, beacon towers, smoke wisps, and camp clutter.
+- Kept the original 132x114 terrain grid and aspect ratio.
+
+## Asset Result
+
+- Previous image: 14,784 x 12,768, 19,973,582 bytes.
+- New image: 8,448 x 7,296, 8,289,494 bytes.
+- Source render density remains 112 px/tile before downsampling; runtime asset density is 64 px/tile for desktop browser performance.
+
+## Evidence
+
+- `docs/visual-asset-sixty-sixth-map-repaint-v1-before-after.png`
+- `docs/visual-asset-sixty-sixth-map-repaint-v1-source-preview.png`
+- `docs/visual-asset-sixty-sixth-map-repaint-v1-detail-crops.png`
+- `docs/visual-asset-sixty-sixth-map-repaint-v1-deploy.png`
+- `docs/visual-asset-sixty-sixth-map-repaint-v1-start.png`
+- `docs/visual-asset-sixty-sixth-map-repaint-v1-main-camp.png`
+- `docs/visual-asset-sixty-sixth-map-repaint-v1-beacon.png`
+- `docs/visual-asset-sixty-sixth-map-repaint-v1-enemy-camp.png`
+
+## Validation
+
+- `python -m py_compile scripts\generate-handpaint-map-sample.py`
+- `pnpm run verify:static-data`
+- `pnpm run build`
+- `pnpm run audit:visual-assets`
+- `git diff --check`
+
+Browser QA reached the 66th battle deployment screen and active battle views around the start area, main camp, beacon line, and enemy camp. The in-app browser log buffer still contained an older 64th-map Phaser image-processing error timestamped before this pass; the 66th battle map rendered successfully in all captured views.