Add Qishan retreat campaign chapter

src/game/scenes/TitleScene.ts

@@ -13,6 +13,7 @@ import {
   fiftyFifthBattleScenario,
   fiftySixthBattleScenario,
   fiftySeventhBattleScenario,
+  fiftyEighthBattleScenario,
   fortiethBattleScenario,
   fortyFirstBattleScenario,
   fortySecondBattleScenario,
@@ -414,6 +415,7 @@ export class TitleScene extends Phaser.Scene {
       campaign.step === 'fifty-fifth-camp' ||
       campaign.step === 'fifty-sixth-camp' ||
       campaign.step === 'fifty-seventh-camp' ||
+      campaign.step === 'fifty-eighth-camp' ||
       campaign.step === 'hanzhong-king-camp' ||
       campaign.step === 'shu-han-foundation-camp' ||
       campaign.step === 'baidi-entrustment-camp' ||
@@ -708,6 +710,11 @@ export class TitleScene extends Phaser.Scene {
       return;
     }
 
+    if (campaign.step === 'fifty-eighth-battle') {
+      this.scene.start('BattleScene', { battleId: fiftyEighthBattleScenario.id });
+      return;
+    }
+
     if (campaign.step === 'first-victory-story') {
       this.scene.start('StoryScene', { pages: firstBattleVictoryPages, nextScene: 'TitleScene' });
       return;