fix(会员报价): 切换账号时清理报价状态

- usePlatformProfileCenterController.ts：账号生命周期重置时清空 membershipQuote / loading / error 并作废未完成报价令牌，避免上一个账号的报价串到新账号

Co-authored-by: Junie <junie@jetbrains.com>

src/components/platform-entry/usePlatformProfileCenterController.ts

@@ -568,6 +568,10 @@ export function usePlatformProfileCenterController({
     setWechatRechargeOrderConfirmationState(null);
     setNativeWechatPayment(null);
     setSubmittingRechargeProductId(null);
+    setMembershipQuote(null);
+    setIsLoadingMembershipQuote(false);
+    setMembershipQuoteError(null);
+    membershipQuoteRequestRef.current = null;
     setIsWalletLedgerOpen(false);
     setWalletLedger(null);
     setWalletLedgerError(null);