Replace battle maps 59 and 60 with hand-painted assets

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

@@ -2,7 +2,7 @@
 
 ## Scope
 
-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.
+The first sixty 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
 
@@ -21,6 +21,7 @@ The first fifty-eight campaign battles now use the same hand-painted tactical ma
 - Massive maps can use a 144px tile target through `MASSIVE_LARGE_MAP_TILE_SIZE` when 152px output approaches the WebP encoder edge.
 - Colossal maps can use a 136px tile target through `COLOSSAL_LARGE_MAP_TILE_SIZE` when 144px output hits WebP encoding error 6.
 - Gigantic maps can use a 128px tile target through `GIGANTIC_LARGE_MAP_TILE_SIZE` when 136px output would exceed the known WebP encoder comfort range.
+- Immense maps can use a 120px tile target through `IMMENSE_LARGE_MAP_TILE_SIZE` when 128px output hits WebP encoding error 6.
 - Re-evaluate the tile target before a generated map's longest edge approaches roughly 16,384px at 192px per tile.
 - Use `--tile-size` only for controlled comparisons; commit the selected production size in the map config.
 
@@ -88,6 +89,8 @@ python scripts/generate-handpaint-map-sample.py --map fifty-fifth --webp-quality
 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
+python scripts/generate-handpaint-map-sample.py --map fifty-ninth --webp-quality 90
+python scripts/generate-handpaint-map-sample.py --map sixtieth --webp-quality 90
 ```
 
 Comparison example:
@@ -156,6 +159,8 @@ python scripts/generate-handpaint-map-sample.py --map thirtieth --tile-size 192
 - `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`
+- `src/assets/images/battle/fifty-ninth-battle-map.webp`
+- `src/assets/images/battle/sixtieth-battle-map.webp`
 
 ## QA Outputs
 
@@ -273,5 +278,9 @@ python scripts/generate-handpaint-map-sample.py --map thirtieth --tile-size 192
 - `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`
+- `docs/fifty-ninth-battle-map-handpaint-before-after.png`
+- `docs/fifty-ninth-battle-map-handpaint-preview.png`
+- `docs/sixtieth-battle-map-handpaint-before-after.png`
+- `docs/sixtieth-battle-map-handpaint-preview.png`
 
 Browser screenshots are saved per verification run after build/deploy.