Baseline: wave 1A server complete, wave 1B Android scaffold + design system green

assembleDebug, testDebugUnitTest, and recordPaparazziDebug all pass.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016bThmkmyUUdqQpy3MXFFe5

app/gradle.properties

@@ -0,0 +1,13 @@
+# Project-wide Gradle settings.
+org.gradle.jvmargs=-Xmx4096m -Dfile.encoding=UTF-8
+org.gradle.parallel=true
+org.gradle.caching=true
+
+# AndroidX
+android.useAndroidX=true
+
+# Kotlin
+kotlin.code.style=official
+
+# Compose (dynamic color intentionally off, see ui.theme)
+android.nonTransitiveRClass=true