Refresh early campaign unit sheets

docs/asset-backlog.md

@@ -341,3 +341,24 @@ design pairs.
 - `unit-wei-archer-crossbow.png` + `unit-wei-archer-crossbow-actions.png`
 - `unit-wu-cavalry-river.png` + `unit-wu-cavalry-river-actions.png`
 - `unit-rebel-archer-fire.png` + `unit-rebel-archer-fire-actions.png`
+
+## Early Unit Remaster V2
+
+Status: complete. Visual contact sheet, image dimensions, alpha transparency,
+`pnpm build`, and `pnpm verify:flow` passed.
+
+This pass replaces the early Yellow Turban campaign unit sheets in place, keeping
+the same texture keys so existing battles and saves continue to load the updated
+art without code changes. The goal is to bring the first-stage Liu Bei, Guan Yu,
+Zhang Fei, and Yellow Turban enemy sheets up to the stronger silhouette and
+cleaner sprite-sheet quality of the newer unit batches.
+
+### Units
+
+- `unit-liu-bei.png` + `unit-liu-bei-actions.png`
+- `unit-guan-yu.png` + `unit-guan-yu-actions.png`
+- `unit-zhang-fei.png` + `unit-zhang-fei-actions.png`
+- `unit-rebel.png` + `unit-rebel-actions.png`
+- `unit-rebel-archer.png` + `unit-rebel-archer-actions.png`
+- `unit-rebel-cavalry.png` + `unit-rebel-cavalry-actions.png`
+- `unit-rebel-leader.png` + `unit-rebel-leader-actions.png`