Add Xuzhou gate night raid battle

docs/roadmap.md

@@ -28,11 +28,12 @@ Build a small complete tactical RPG loop that can grow into a longer Romance of
 - Sortie preparation selection in camp so Liu Bei is required and optional allied officers can be deployed or benched before battle
 - Xu Province camp recruitment for Jian Yong and Mi Zhu, including new strategist/quartermaster roles, bond dialogue, and selectable sortie participation
 - Eighth battle Xiaopei supply-road defense, where the expanded Xu Province roster can be selected into battle and Lu Bu's refuge arc is foreshadowed
-- Flow verification script from title through the eighth battle victory, recruit sortie selection, and camp save state
+- Ninth battle Xuzhou gate night raid, opening Lu Bu's refuge and the internal instability that leads toward the loss of Xu Province
+- Flow verification script from title through the ninth battle victory, recruit sortie selection, and camp save state
 
 ## Next Steps
 
-1. Continue into the Lu Bu refuge and Xu Province loss chapter
+1. Continue into Zhang Fei's mistake and the full loss of Xu Province to Lu Bu
 2. Add a chapter/progress view so long campaign arcs are easier to read between battles
 3. Apply treasure equipment effects to damage, defense, recovery, and command rules
 4. Add more recruitable officers as the campaign moves toward Cao Cao, Yuan Shao, Liu Biao, and Zhuge Liang