Add Red Cliffs fire attack chapter

docs/roadmap.md

@@ -43,15 +43,16 @@ Build a small complete tactical RPG loop that can grow into a longer Romance of
 - Nineteenth battle Changban refuge route, extending Red Cliffs preparation with a larger refugee-road battlefield, Cao Chun's cavalry pursuit, Zhao Yun survival pressure, and a sortie choice that highlights growing roster tradeoffs
 - Twentieth battle Jiangdong envoy route, shifting sortie choice toward protecting Zhuge Liang and Sun Qian while opening the diplomatic path to Sun Quan and Zhou Yu
 - Twenty-first battle Red Cliffs vanguard route, opening the first allied river-line clash with Cai Mao, six-officer sortie pressure, and post-battle fire-attack preparation events
+- Twenty-second battle Red Cliffs fire attack, turning Huang Gai's bitter-flesh plan and Zhuge Liang's wind timing into the decisive fire battle against Cao Cao's chained fleet
 - 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, recommended officers with reasons, class role, named equipment, core stats, bond partner, next-map terrain suitability, 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, 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 twenty-first battle victory, recruit sortie selection, Liu Biao visit rewards, Zhuge Liang recruitment, Bowang/Changban/Jiangdong/Red Cliffs camp states, campaign timeline state, and camp save state
+- Flow verification script from title through the twenty-second battle victory, recruit sortie selection, Liu Biao visit rewards, Zhuge Liang recruitment, Bowang/Changban/Jiangdong/Red Cliffs fire camp states, campaign timeline state, and camp save state
 
 ## Next Steps
 
-1. Continue the Red Cliffs preparation chapter into Huang Gai's bitter-flesh plan and the main fire-attack confrontation
+1. Continue from Red Cliffs victory into Jing Province southern commandery acquisition and the first post-Red-Cliffs land campaign
 2. Add more recruitable officers as the campaign moves toward Red Cliffs, Jing Province, Yi Province, and Shu Han
 3. Expand reserve training into explicit drill choices, class practice, and bond-focused camp assignments
 4. Add a dedicated treasure/equipment management view so players can compare special effects and growth