Run/Debug of a Maven module with Kotlin/Groovy/Scala sources rebuilt the module and its reactor dependencies with Maven before every launch, even when nothing had changed.
Each successful launch build now records a fingerprint of its inputs (sources and resource roots of the dependency closure, module and parent POMs, imported BOMs, wrapper/.mvn/settings/toolchains, JDK, command line and environment) together with an immutable snapshot of its outputs in the project cache. A later launch with the same fingerprint reuses the snapshot without running Maven; Run and Debug share it, application and test launches are kept apart. Inputs that cannot be resolved reliably (dynamic roots overridden by profiles or -D) always rebuild. A failed, cancelled or concurrently edited build never publishes a reusable record.
Superseded snapshots stay available while JVMs of the current session may still load classes and are removed when the project closes; snapshots left by earlier sessions and no longer referenced are cleaned on the first launch.
Fixes#530
