made android client

android/app/proguard-rules.pro

@@ -0,0 +1,4 @@
+# kotlinx.serialization keeps generated serializers; models are plain data classes.
+-keepattributes *Annotation*, InnerClasses
+-keep,includedescriptorclasses class ritm.schedule.data.**$$serializer { *; }
+-keepclassmembers class ritm.schedule.data.** { *** Companion; }