tweaks and fixes

- introduce kotlin-jvm convention
- tidy up code-quality build config

buildSrc/src/main/kotlin/buildsrc/conventions/sonarqube.gradle.kts

@@ -1,33 +0,0 @@
-/*
- * Copyright 2001-2023 Geert Bevin (gbevin[remove] at uwyn dot com)
- * Copyright 2022-2023 Erik C. Thauvin (erik@thauvin.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package buildsrc.conventions
-
-plugins {
-  id("org.sonarqube")
-}
-
-sonarqube {
-  properties {
-    property("sonar.projectName", rootProject.name)
-    property("sonar.projectKey", "ethauvin_${rootProject.name}")
-    property("sonar.organization", "ethauvin-github")
-    property("sonar.host.url", "https://sonarcloud.io")
-    property("sonar.sourceEncoding", "UTF-8")
-    property("sonar.coverage.jacoco.xmlReportPaths", "${project.buildDir}/reports/kover/xml/report.xml")
-  }
-}