Show level in top bar and level-complete overlay

Wire updateLevelName in GameScene so the HUD top bar displays the
current level next to the enemies counter. Pass level in levelStats
so the level-complete popup shows it at the top of the stats list.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: thagler

src/scenes/GameScene.ts

@@ -111,6 +111,7 @@ export class GameScene extends Phaser.Scene {
     this.hud.updateCredits(this.economyManager.getCredits());
     this.hud.updateLives(this.lives, this.maxLives);
     this.hud.updateEnemiesRemaining(this.totalEnemies);
+    this.hud.updateLevelName(this.levelConfig.level, this.levelConfig.name);
     this.towerPicker.updateAffordability(this.economyManager.getCredits());
 
     // ---- Build slot click handling ----
@@ -333,6 +334,7 @@ export class GameScene extends Phaser.Scene {
       creditsEarned: stats.totalEarned,
       livesRemaining: this.lives,
       livesMax: this.maxLives,
+      level: this.level,
     };
 
     if (this.level >= maxLevel) {

src/ui/HUD.ts

@@ -274,16 +274,15 @@ export class HUD extends Phaser.Events.EventEmitter {
     container.add(titleText);
 
     // Stats lines
-    const statsLines: string[] = [
-      `Enemies Killed: ${stats.enemiesKilled}`,
-      `Credits Earned: ${stats.creditsEarned}`,
-    ];
-    if (stats.livesRemaining !== undefined && stats.livesMax !== undefined) {
-      statsLines.push(`Lives Remaining: ${stats.livesRemaining}/${stats.livesMax}`);
-    }
+    const statsLines: string[] = [];
     if (stats.level !== undefined) {
       statsLines.push(`Level: ${stats.level}`);
     }
+    statsLines.push(`Enemies Killed: ${stats.enemiesKilled}`);
+    statsLines.push(`Credits Earned: ${stats.creditsEarned}`);
+    if (stats.livesRemaining !== undefined && stats.livesMax !== undefined) {
+      statsLines.push(`Lives Remaining: ${stats.livesRemaining}/${stats.livesMax}`);
+    }
 
     let lineY = centerY - 50;
     for (const line of statsLines) {