Fix: tauri window scaling bug

frontend/tauri-ui/src/renderer/pixi_pet.ts

@@ -75,10 +75,10 @@ export class PixiPetRenderer {
     }
     const sprite = new Sprite();
     sprite.anchor.set(pack.anchor.x, pack.anchor.y);
-    sprite.position.set(app.renderer.width / 2, app.renderer.height);
     app.stage.addChild(sprite);
 
     const renderer = new PixiPetRenderer(app, sprite, pack, baseTexture);
+    renderer.layoutSprite();
     renderer.applySnapshot(snapshot);
     renderer.startTicker();
     return renderer;
@@ -145,10 +145,12 @@ export class PixiPetRenderer {
       this.applyFrameTexture(this.currentClip.frames[0] ?? 0);
     }
     this.sprite.scale.set(snapshot.scale);
+    this.layoutSprite();
   }
 
   private startTicker(): void {
     this.app.ticker.add((ticker) => {
+      this.layoutSprite();
       const frameMs = 1000 / Math.max(this.currentClip.fps, 1);
       this.frameElapsedMs += ticker.deltaMS;
       if (this.frameElapsedMs < frameMs) {
@@ -169,6 +171,10 @@ export class PixiPetRenderer {
     });
   }
 
+  private layoutSprite(): void {
+    this.sprite.position.set(this.app.renderer.width / 2, this.app.renderer.height);
+  }
+
   private resolveClip(name: string): UiAnimationClip {
     return (
       this.animationMap.get(name) ??