Gradle Expert Build system expertise for AmethystMultiplatform's 4-module KMP architecture. Focus: practical troubleshooting, dependency resolution, and project-specific optimizations. Build Architecture Mental Model Think of this project as 4 layers : Key insight: Dependencies flow DOWN. Lower modules never depend on upper modules. This enables code sharing without circular dependencies. The jvmAndroid pattern: Unique to this project. A custom source set between commonMain and {androidMain, jvmMain} for JVM-specific code shared by Android and Desktop. Not standard KMP, but critical for this…