feat(level-select): add hover name tags to cleared nodes

Introduces a subtle fade-in/out name pill for completed level nodes on hover,
improving discoverability of level names without permanently cluttering the UI.
Also adds voice assets for levels 2–10.

src/scenes/LevelSelectScene.js

@@ -199,10 +199,23 @@ export default class LevelSelectScene extends Phaser.Scene {
           )
           .on('pointerout', () => this._hideTooltip());
       } else {
+        // Hover name tag for CLEARED nodes: a small level-name pill that fades
+        // in above the badge while the pointer is over it (the 'current'
+        // node already wears its name pill permanently, so no tag there).
+        // Created before setInteractive so it sits ahead of the node in the
+        // display list; depth DEPTH.tooltip (10) puts it over node and tag.
+        const nameTag = state === 'done' ? createPill(this, p.x, p.y, level.name, PILL_STYLE).setDepth(DEPTH.tooltip).setAlpha(0) : null;
+        if (nameTag) this._groups.tags.push(nameTag); // rebuilt/destroyed with the campaign group
         node
           .setInteractive({ useHandCursor: true, hitArea, hitAreaCallback: hitTest })
-          .on('pointerover', () => this._tweenNodeSize(node, nw * NODE_HOVER, nh * NODE_HOVER))
+          .on('pointerover', () => {
-          .on('pointerout', () => this._tweenNodeSize(node, nw, nh))
+            this._tweenNodeSize(node, nw * NODE_HOVER, nh * NODE_HOVER);
+            if (nameTag) this._showNameTag(nameTag, p.x, p.y - nh * 0.78);
+          })
+          .on('pointerout', () => {
+            this._tweenNodeSize(node, nw, nh);
+            if (nameTag) this._hideNameTag(nameTag);
+          })
           .on('pointerdown', () => {
             this._tweenNodeSize(node, nw * 0.92, nh * 0.92, 70);
             this.time.delayedCall(80, () => {
@@ -376,6 +389,23 @@ export default class LevelSelectScene extends Phaser.Scene {
     }
   }
 
+  // Hover name tag for cleared nodes: fade in (a little pop) while hovered,
+  // fade out when the pointer leaves. Non-blocking - the click's
+  // pointerdown/scene transition below are never gated on this tween, so an
+  // overlapping node's pointerover can't interrupt a still-running fade-in.
+  _showNameTag(tag, x, y) {
+    tag.setPosition(x, y);
+    tag.setAlpha(0);
+    this.tweens.killTweensOf(tag);
+    this.tweens.add({ targets: tag, alpha: 1, duration: 100, ease: 'Quad.easeOut' });
+  }
+
+  _hideNameTag(tag) {
+    if (!tag.active) return;
+    this.tweens.killTweensOf(tag);
+    this.tweens.add({ targets: tag, alpha: 0, duration: 100, ease: 'Quad.easeIn' });
+  }
+
   _drawPager() {
     const g = this._pager;
     g.clear();