feat: 迁移渠道列表新增和游戏累计分布

internal/integration/gameplatform/password_test.go

@@ -17,3 +17,14 @@ func TestLegacyPasswordFormats(t *testing.T) {
 		t.Fatal("缺少兼容盐时必须明确报错")
 	}
 }
+
+func TestNewChannelPasswordMatchesLegacyFixedVector(t *testing.T) {
+	passwords := &Passwords{AuthCode: "test-auth"}
+	hash, err := passwords.Encode("demo123")
+	if err != nil || hash != "###eef6d9b7160f32a869f3e03b7ea575a5" {
+		t.Fatal("新渠道密码与旧平台格式不兼容")
+	}
+	if _, err := (&Passwords{}).Encode("demo123"); err == nil {
+		t.Fatal("缺少盐不能写入不可登录的渠道密码")
+	}
+}