Expose sortie plan warning count

src/game/scenes/CampScene.ts

@@ -298,6 +298,7 @@ type SortiePlanSummary = {
   objectiveLine: string;
   formationSlots: SortieFormationSlot[];
   warningLine: string;
+  warningCount: number;
   warnings: string[];
 };
 
@@ -13459,6 +13460,7 @@ export class CampScene extends Phaser.Scene {
       objectiveLine: scenario ? `${scenario.title} · ${scenario.victoryConditionLabel}` : `${flow.title} · 군영 의정`,
       formationSlots,
       warningLine: warnings[0] ?? (hasBattle ? '배치 균형 양호' : '동행 균형 양호'),
+      warningCount: warnings.length,
       warnings
     };
   }