Show save slot metadata on title

src/game/scenes/TitleScene.ts

@@ -205,7 +205,7 @@ export class TitleScene extends Phaser.Scene {
     const canContinue = hasCampaignSave();
     const campaign = canContinue ? loadCampaignState() : undefined;
     const isEndingComplete = campaign?.step === 'ending-complete';
-    const plateHeight = campaign ? 324 : 252;
+    const plateHeight = campaign ? 348 : 252;
 
     const plate = this.add.rectangle(menuX, menuY, 250, plateHeight, 0x111821, 0.66);
     plate.setStrokeStyle(1, palette.gold, 0.45);
@@ -228,30 +228,39 @@ export class TitleScene extends Phaser.Scene {
     isEndingComplete: boolean
   ) {
     const badge = this.add.container(x, y);
-    const background = this.add.rectangle(0, 0, 210, 58, 0x21180f, 0.92);
+    const background = this.add.rectangle(0, 0, 216, 78, 0x21180f, 0.92);
     background.setStrokeStyle(1, palette.gold, 0.52);
 
-    const title = this.add.text(0, -14, isEndingComplete ? '완결 저장' : '진행 저장', {
+    const title = this.add.text(0, -24, isEndingComplete ? '완결 저장' : '진행 저장', {
       fontFamily: '"Malgun Gothic", "Noto Sans KR", sans-serif',
       fontSize: '18px',
       color: '#f6e6bd',
       fontStyle: '700',
-      fixedWidth: 190,
+      fixedWidth: 198,
       align: 'center',
       padding: { top: 3, bottom: 3 }
     });
     title.setOrigin(0.5);
 
-    const detail = this.add.text(0, 14, this.campaignSaveDetail(campaign, isEndingComplete), {
+    const detail = this.add.text(0, 0, this.campaignSaveDetail(campaign, isEndingComplete), {
       fontFamily: '"Malgun Gothic", "Noto Sans KR", sans-serif',
       fontSize: '14px',
       color: '#d8b15f',
-      fixedWidth: 190,
+      fixedWidth: 198,
       align: 'center'
     });
     detail.setOrigin(0.5);
 
-    badge.add([background, title, detail]);
+    const meta = this.add.text(0, 24, this.campaignSaveMeta(campaign), {
+      fontFamily: '"Malgun Gothic", "Noto Sans KR", sans-serif',
+      fontSize: '12px',
+      color: '#9fb0bf',
+      fixedWidth: 198,
+      align: 'center'
+    });
+    meta.setOrigin(0.5);
+
+    badge.add([background, title, detail, meta]);
   }
 
   private campaignSaveDetail(campaign: ReturnType<typeof loadCampaignState>, isEndingComplete: boolean) {
@@ -284,6 +293,23 @@ export class TitleScene extends Phaser.Scene {
     return label.length > 19 ? `${label.slice(0, 18)}...` : label;
   }
 
+  private campaignSaveMeta(campaign: ReturnType<typeof loadCampaignState>) {
+    return `슬롯 ${campaign.activeSaveSlot} · ${this.formatSaveUpdatedAt(campaign.updatedAt)}`;
+  }
+
+  private formatSaveUpdatedAt(updatedAt: string) {
+    const date = new Date(updatedAt);
+    if (Number.isNaN(date.getTime())) {
+      return '저장 시각 미상';
+    }
+
+    const month = date.getMonth() + 1;
+    const day = date.getDate();
+    const hour = String(date.getHours()).padStart(2, '0');
+    const minute = String(date.getMinutes()).padStart(2, '0');
+    return `${month}/${day} ${hour}:${minute}`;
+  }
+
   private createMenuButton(
     x: number,
     y: number,