变更：VIP等级手续费精确小数后3位

package.json

@@ -47,6 +47,7 @@
     "eslint-plugin-oxlint": "~1.42.0",
     "eslint-plugin-playwright": "^2.5.1",
     "eslint-plugin-vue": "~10.7.0",
+    "fancy-canvas": "^2.1.0",
     "jiti": "^2.6.1",
     "jsdom": "^27.4.0",
     "npm-run-all2": "^8.0.4",

src/views/MemberCenter.vue

@@ -105,7 +105,7 @@ function resolveVipLevel(user: Record<string, unknown>): number {
  */
 function formatTradingFee(rate: number): string {
   if (!Number.isFinite(rate)) return '--'
-  return `${(rate / 10000).toFixed(2)}%`
+  return `${(rate / 10000).toFixed(3)}%`
 }
 
 /** 与接口 needDeposit / accumulated 同一套口径：大额按 USDC 6 位小数，否则按美元数值 */