fix: 消除合并后的变量遮蔽以通过检查

internal/admin/admin_test.go

@@ -304,9 +304,9 @@ func TestAdminLockDoesNotBlockAuthedSession(t *testing.T) {
 
 	for i := 0; i < 10; i++ {
 		bad := &http.Client{}
-		res := postJSON(t, bad, base+"/api/admin/login",
+		res = postJSON(t, bad, base+"/api/admin/login",
 			`{"username":"admin","password":"wrong-password!!"}`, nil)
-		env := decodeEnv(t, res)
+		env = decodeEnv(t, res)
 		if i < 9 {
 			if res.StatusCode != 401 {
 				t.Fatalf("fail %d: want 401 got %d %+v", i, res.StatusCode, env)