fix: Add proguard rules for the Shizuku implementation

* Otherwise it won't work after shrinking/obfuscation.

Author: xLexip

app/proguard-rules.pro

@@ -18,4 +18,12 @@
 
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
-#-renamesourcefileattribute SourceFile
+#-renamesourcefileattribute SourceFile
+
+# --- Shizuku integration ---
+# Keep all Shizuku library classes used for binder communication
+-keep class moe.shizuku.** { *; }
+-keep class rikka.shizuku.** { *; }
+
+# Keep Shizuku user service implementation and its members
+-keep class dev.lexip.hecate.util.shizuku.GrantService { *; }

app/src/main/java/dev/lexip/hecate/util/shizuku/GrantService.kt

@@ -3,9 +3,11 @@ package dev.lexip.hecate.util.shizuku
 import android.os.Binder
 import android.os.Parcel
 import android.util.Log
+import androidx.annotation.Keep
 import java.io.BufferedReader
 import java.io.InputStreamReader
 
+@Keep
 class GrantService : Binder() {
 
 	companion object {