AGP 9.4.1 / Gradle 9.7.1 / Kotlin 2.3.10 (AGP built-in Kotlin), compileSdk and targetSdk 37, Room 3 with KSP schema export, and nushell/navidrome/gonic in the devshell plus a direnv .envrc. Adds a dedicated :app:integrationTest task and excludes the integration class from the unit test tasks.