Fix Picocli ProGuard rules to prevent runtime crashes

Updates the ProGuard configuration to explicitly keep reflection annotations, Kotlin companion objects, Picocli subcommands/help mixins, and IPC data classes that were being aggressively stripped by R8.

Author: AnatolyJacobs

daemon/proguard-rules.pro

@@ -7,6 +7,19 @@
 -keepclasseswithmembers class org.matrix.vector.daemon.Cli {
     public static void main(java.lang.String[]);
 }
+-keep class org.matrix.vector.daemon.Cli { *; }
+-keep class org.matrix.vector.daemon.Cli$Companion { *; }
+-keep class org.matrix.vector.daemon.*Command { *; }
+-keep class org.matrix.vector.daemon.CliRequest { *; }
+-keep class org.matrix.vector.daemon.CliResponse { *; }
+
+-keep class picocli.CommandLine$AutoHelpMixin { *; }
+-keep class picocli.CommandLine$HelpCommand { *; }
+-keep @picocli.CommandLine$Command class picocli.** { *; }
+
+# MUST keep annotations for Picocli to function via reflection
+-keepattributes *Annotation*,Signature,InnerClasses,EnclosingMethod
+
 -keepclasseswithmembers class org.matrix.vector.daemon.env.LogcatMonitor {
     private int refreshFd(boolean);
 }