Add Hanzhong rainy pass campaign chapter

docs/roadmap.md

@@ -92,15 +92,17 @@ Build a small complete tactical RPG loop that can grow into a longer Romance of
 - Post-Chencang camp events with Jiang Wei, Fa Zheng, Wei Yan, Huang Quan, Ma Liang, Wang Ping, and Ma Dai focusing on siege timing, restrained breakthrough choices, supply ledgers, and the next northern-front recalculation
 - Sixtieth battle Wudu/Yinping commanderies route, where the post-Chencang plan shifts from siege pressure to split mountain-road control, using eight recommended officers for seven slots so Jiang Wei, Wei Yan, Zhao Yun, Ma Dai, Wang Ping, Huang Quan, and Ma Liang compete inside a 120x102 battlefield against Guo Huai's relief line
 - Post-Wudu/Yinping camp events with Jiang Wei, Wei Yan, Zhao Yun, Ma Dai, Wang Ping, Huang Quan, and Ma Liang focusing on breakthrough return lines, cavalry recall signals, two-commandery supply ledgers, and the next northern-front responsibility
+- Sixty-first battle Hanzhong rainy-pass defense route, where Cao Zhen's counteroffensive turns the newly held Wudu/Yinping commanderies into a defensive burden, forcing nine recommended officers into seven slots across a 122x104 battlefield while Zhuge Liang protects Hanzhong granaries, rain-soaked roads, and split supply ledgers
+- Post-Hanzhong-rain camp events with Li Yan, Huang Quan, Jiang Wei, Wang Ping, Zhuge Liang, Wei Yan, and Ma Liang focusing on rain-delay ledgers, return-first road markings, restrained counterattack limits, and the next northern-front recalculation
 - Camp progress timeline tab that summarizes Liu Bei's long campaign arc, completed battles, current chapter, latest battle, and next major chapter
 - Tactical sortie preparation panel with battle-specific sortie limits, required/excluded/recommended officers, expanding recruited-roster selection pressure, class role, named equipment, core stats, bond partner, next-map terrain suitability, focused officer analysis, deployment preview, formation roles, active bond count, recruited-officer count, reserve roster summary, and readiness advice for each deployable officer
 - Officer collection support in camp, including full roster status, selected/reserve/recommended markers, selectable reserve drill focus, and post-battle reserve training growth for benched officers
 - Treasure equipment effects wired into battle previews and resolution, including named weapon damage bonuses, defensive treasure mitigation, support recovery bonuses, turn-start charm recovery, and equipment-specific growth bonuses
-- Flow verification script from title through the Wudu/Yinping commanderies and post-commandery camp, with Jiang Wei's first selectable sortie, King of Hanzhong council milestone, Shu-Han foundation milestone, recruit sortie selection, Liu Biao visit rewards, Zhuge Liang recruitment, Bowang/Changban/Jiangdong/Red Cliffs/Jing Province/Guiyang/Wuling/Changsha/Yi Province/Fu Pass/Luo Castle/Luofeng/Luo main gate/Mianzhu/Chengdu/Jiameng/Yangping/Dingjun/Hanzhong/Jing defense/Fan Castle/Han River/Fan siege/Jing rear/Gongan collapse/Maicheng isolation/Yiling vanguard/Yiling fire/Baidi entrustment/Nanzhong stabilization/Meng Huo pacification camp states, campaign timeline state, and camp save state
+- Flow verification script from title through the Wudu/Yinping commanderies, Hanzhong rainy-pass defense, and post-rain-defense camp, with Jiang Wei's first selectable sortie, King of Hanzhong council milestone, Shu-Han foundation milestone, recruit sortie selection, Liu Biao visit rewards, Zhuge Liang recruitment, Bowang/Changban/Jiangdong/Red Cliffs/Jing Province/Guiyang/Wuling/Changsha/Yi Province/Fu Pass/Luo Castle/Luofeng/Luo main gate/Mianzhu/Chengdu/Jiameng/Yangping/Dingjun/Hanzhong/Jing defense/Fan Castle/Han River/Fan siege/Jing rear/Gongan collapse/Maicheng isolation/Yiling vanguard/Yiling fire/Baidi entrustment/Nanzhong stabilization/Meng Huo pacification camp states, campaign timeline state, and camp save state
 
 ## Next Steps
 
-1. Build the next northern-front step after securing Wudu and Yinping, preserving the broadened-responsibility tone and making the newly held commanderies create more supply, defense, and sortie tradeoffs instead of treating the extra territory as a simple victory lap
+1. Build the next northern-front step after Hanzhong rainy-pass defense, turning the preserved granaries and Wudu/Yinping supply roads back into an offensive decision without treating the successful defense as an ending
 2. Expand post-Baidi and post-Nanzhong camp consequences with grief checks, recovery policy choices, village reassurance, captive handling, and regency decisions that affect sortie recommendations
 3. Expand reserve planning into individual officer assignments, including targeted class practice, paired bond training, and camp task slots
 4. Add a dedicated treasure/equipment management view so players can compare special effects and growth