fix: 3v3 team match wrong problems

js/entities/Bullet.js

@@ -77,12 +77,24 @@ class Bullet {
 
   /**
    * Render the bullet.
+   * In team battle mode, bullet color is determined by the _isAlly flag
+   * set by the scene: ally = bright yellow, enemy = red.
+   * In single-player / PVE mode, owner-based colors are used.
    * @param {CanvasRenderingContext2D} ctx
    */
   render(ctx) {
     if (!this.alive) return;
 
-    ctx.fillStyle = this.owner === 'player' ? '#FFFF00' : '#FF6600';
+    let fillColor;
+    if (this._isAlly !== undefined) {
+      // Team mode: use team-aware coloring
+      fillColor = this._isAlly ? '#FFFF00' : '#FF4444';
+    } else {
+      // Single-player / PVE fallback
+      fillColor = this.owner === 'player' ? '#FFFF00' : '#FF6600';
+    }
+
+    ctx.fillStyle = fillColor;
     ctx.fillRect(
       this.x - this.halfSize,
       this.y - this.halfSize,

js/entities/PlayerTank.js

@@ -45,7 +45,7 @@ class PlayerTank extends Tank {
 
     // Skin colors (reserved for future use)
     this._skinColors = null;
-    this._skinId = 'default';
+    this._skinId = null;
 
     // Fire level system
     this.fireLevel = FIRE_LEVEL.LV1;

js/entities/Tank.js

@@ -307,6 +307,14 @@ class Tank {
       ctx.scale(k, k);
       drawTankSkin(ctx, this._skinId, this._skinColors, t);
       ctx.restore();
+      // Gold border for local player identification
+      if (this._isLocal) {
+        ctx.strokeStyle = '#FFD700';
+        ctx.lineWidth = 2;
+        ctx.strokeRect(-this.halfSize, -this.halfSize, this.size, this.size);
+        // Also outline the barrel area
+        ctx.strokeRect(-this.size * 0.15 / 2, -this.halfSize - barrelExtra, this.size * 0.15, barrelExtra);
+      }
       ctx.restore();
       return;
     }
@@ -344,6 +352,15 @@ class Tank {
     ctx.fillRect(-hs, -hs, trackW, this.size);
     ctx.fillRect(hs - trackW, -hs, trackW, this.size);
 
+    // Gold border for local player identification
+    if (this._isLocal) {
+      ctx.strokeStyle = '#FFD700';
+      ctx.lineWidth = 2;
+      ctx.strokeRect(-hs, -hs, this.size, this.size);
+      // Barrel outline
+      ctx.strokeRect(-barrelW / 2, -hs - barrelH, barrelW, barrelH);
+    }
+
     ctx.restore();
   }