Replace battle maps 57 and 58 with hand-painted assets

docs/battle-map-terrain-atlas-pipeline.md

@@ -2,7 +2,7 @@
 
 ## Scope
 
-The first fifty-six campaign battles now use the same hand-painted tactical map pipeline. The renderer still reads the original scenario tile coordinates and battle logic; only the map texture asset changes from flat/vector map art to low-contrast raster terrain.
+The first fifty-eight campaign battles now use the same hand-painted tactical map pipeline. The renderer still reads the original scenario tile coordinates and battle logic; only the map texture asset changes from flat/vector map art to low-contrast raster terrain.
 
 ## Art Direction
 
@@ -86,6 +86,8 @@ python scripts/generate-handpaint-map-sample.py --map fifty-third --webp-quality
 python scripts/generate-handpaint-map-sample.py --map fifty-fourth --webp-quality 90
 python scripts/generate-handpaint-map-sample.py --map fifty-fifth --webp-quality 90
 python scripts/generate-handpaint-map-sample.py --map fifty-sixth --webp-quality 90
+python scripts/generate-handpaint-map-sample.py --map fifty-seventh --webp-quality 90
+python scripts/generate-handpaint-map-sample.py --map fifty-eighth --webp-quality 90
 ```
 
 Comparison example:
@@ -152,6 +154,8 @@ python scripts/generate-handpaint-map-sample.py --map thirtieth --tile-size 192
 - `src/assets/images/battle/fifty-fourth-battle-map.webp`
 - `src/assets/images/battle/fifty-fifth-battle-map.webp`
 - `src/assets/images/battle/fifty-sixth-battle-map.webp`
+- `src/assets/images/battle/fifty-seventh-battle-map.webp`
+- `src/assets/images/battle/fifty-eighth-battle-map.webp`
 
 ## QA Outputs
 
@@ -265,5 +269,9 @@ python scripts/generate-handpaint-map-sample.py --map thirtieth --tile-size 192
 - `docs/fifty-fifth-battle-map-handpaint-preview.png`
 - `docs/fifty-sixth-battle-map-handpaint-before-after.png`
 - `docs/fifty-sixth-battle-map-handpaint-preview.png`
+- `docs/fifty-seventh-battle-map-handpaint-before-after.png`
+- `docs/fifty-seventh-battle-map-handpaint-preview.png`
+- `docs/fifty-eighth-battle-map-handpaint-before-after.png`
+- `docs/fifty-eighth-battle-map-handpaint-preview.png`
 
 Browser screenshots are saved per verification run after build/deploy.