Fix R8 minification failure with consumer ProGuard rule for DistributionIntegration

Added consumer ProGuard rule in sentry-android-core to handle missing DistributionIntegration class when the distribution module is not included. This follows the same pattern used for other optional integrations like Replay and Timber.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: runningcode

sentry-android-core/build.gradle.kts

@@ -76,8 +76,8 @@ dependencies {
   compileOnly(projects.sentryAndroidFragment)
   compileOnly(projects.sentryAndroidTimber)
   compileOnly(projects.sentryAndroidReplay)
-  compileOnly(projects.sentryAndroidDistribution)
   compileOnly(projects.sentryCompose)
+  compileOnly(projects.sentryAndroidDistribution)
 
   // lifecycle processor, session tracking
   implementation(libs.androidx.lifecycle.common.java8)

sentry-android-core/proguard-rules.pro

@@ -78,3 +78,8 @@
 -dontwarn io.sentry.android.replay.DefaultReplayBreadcrumbConverter
 -keepnames class io.sentry.android.replay.ReplayIntegration
 ##---------------End: proguard configuration for sentry-android-replay  ----------
+
+##---------------Begin: proguard configuration for sentry-android-distribution  ----------
+-dontwarn io.sentry.android.distribution.internal.DistributionIntegration
+-keepnames class io.sentry.android.distribution.internal.DistributionIntegration
+##---------------End: proguard configuration for sentry-android-distribution  ----------

sentry-android-core/src/main/java/io/sentry/android/core/AndroidOptionsInitializer.java

@@ -31,8 +31,8 @@
 import io.sentry.android.core.internal.util.AndroidCurrentDateProvider;
 import io.sentry.android.core.internal.util.AndroidThreadChecker;
 import io.sentry.android.core.internal.util.SentryFrameMetricsCollector;
-import io.sentry.android.core.performance.AppStartMetrics;
 import io.sentry.android.distribution.internal.DistributionIntegration;
+import io.sentry.android.core.performance.AppStartMetrics;
 import io.sentry.android.fragment.FragmentLifecycleIntegration;
 import io.sentry.android.replay.DefaultReplayBreadcrumbConverter;
 import io.sentry.android.replay.ReplayIntegration;