2026-June-06 - 2.7.15607

CleanThat: add and apply various linting/refactoring rules (#14488)

CleanThat applies various refactoring rules. Rules were selected based on general "goodness" and impact to the existing codebase. Some rules were good but omitted due to a needlessly overly broad impact on the codebase.

Rules are all "self fixing", running "spotlessApply" will generally fix any violations automatically. One downside, './gradlew spotlessApply' does run significantly slower.

Rules were added to the file: gradle/build-logic/triplea-java-library/src/main/kotlin/triplea-java-library.gradle.kts

All other changes were done automatically via ./gradlew spotlessApply