Disable R8 optimization for Android (#1664)

server/android/proguard-rules.pro

@@ -26,10 +26,37 @@
 -dontwarn reactor.blockhound.integration.BlockHoundIntegration
 
 -keep class io.ktor.** { *; }
--keep class io.netty.** {*; }
+-keep class io.netty.** { *; }
 -keep class kotlin.reflect.jvm.internal.** { *; }
 -keep class kotlinx.coroutines.** { *; }
 -dontwarn kotlinx.atomicfu.**
 -dontwarn io.netty.**
 -dontwarn com.typesafe.**
 -dontwarn org.slf4j.**
+
+# Proguard configuration for Jackson 2.x
+# https://github.com/FasterXML/jackson-docs/wiki/JacksonOnAndroid
+#-keep class java.beans.** { *; }
+#-dontwarn java.beans.**
+#
+#-keep class com.fasterxml.jackson.** { *; }
+#-dontwarn com.fasterxml.jackson.databind.**
+#
+#-keep class com.github.jonpeterson.jackson.** { *; }
+#
+#-keepclassmembers class * {
+#     @com.fasterxml.jackson.annotation.* *;
+#}
+
+# Proguard configuration for SnakeYAML 2.X
+#-keep class org.yaml.snakeyaml.** { *; }
+#-dontwarn org.yaml.snakeyaml.**
+
+# Don't mess with SlimeVR config, the class structure is essential for serialization
+-keep class dev.slimevr.config.** { *; }
+
+# Obfuscation is fine but it makes crash logs unreadable, we don't really need it for our app
+-dontobfuscate
+
+# Temporary measure to keep config functional, beware Jackson issues if removing!!
+-dontoptimize