fix: pass app interpolation param to proxy takeover toast messages

The i18next t() calls for proxy.takeover.enabled/disabled were missing
the `app` interpolation parameter, causing {{app}} placeholders in
translation strings to render literally instead of showing the app name.

src/hooks/useProxyStatus.ts

@@ -108,9 +108,11 @@ export function useProxyStatus() {
       toast.success(
         variables.enabled
           ? t("proxy.takeover.enabled", {
+              app: appLabel,
               defaultValue: `已接管 ${appLabel} 配置（请求将走本地代理）`,
             })
           : t("proxy.takeover.disabled", {
+              app: appLabel,
               defaultValue: `已恢复 ${appLabel} 配置`,
             }),
         { closeButton: true },