Add ProGuard rules to Android installation documentation

- Add ProGuard section to WalletKit Android installation guide
- Add ProGuard section to AppKit Android installation guide
- Include JNA and uniffi rules required for SDK minification
- Consistent formatting across both documentation files
- Rules placed after gradle dependencies for logical flow

Co-Authored-By: jakub@reown.com <jakubwitczak6@gmail.com>

Author: devin-ai-integration[bot]

appkit/android/core/installation.mdx

@@ -33,6 +33,31 @@ implementation("com.reown:android-core")
 implementation("com.reown:appkit")
 ```
 
+## ProGuard rules
+
+If you encounter issues with minification, add the below rules to your application:
+
+```
+-keepattributes *Annotation*
+
+-keep class com.sun.jna.** { *; }
+-keepclassmembers class com.sun.jna.** {
+    native <methods>;
+    *;
+}
+
+-keep class uniffi.** { *; }
+
+# Preserve all public and protected fields and methods
+-keepclassmembers class ** {
+    public *;
+    protected *;
+}
+
+-dontwarn uniffi.**
+-dontwarn com.sun.jna.**
+```
+
 ## Example
 
 <Card

walletkit/android/installation.mdx

@@ -20,6 +20,31 @@ implementation("com.reown:android-core:release_version")
 implementation("com.reown:walletkit:release_version")
 ```
 
+## ProGuard rules
+
+If you encounter issues with minification, add the below rules to your application:
+
+```
+-keepattributes *Annotation*
+
+-keep class com.sun.jna.** { *; }
+-keepclassmembers class com.sun.jna.** {
+    native <methods>;
+    *;
+}
+
+-keep class uniffi.** { *; }
+
+# Preserve all public and protected fields and methods
+-keepclassmembers class ** {
+    public *;
+    protected *;
+}
+
+-dontwarn uniffi.**
+-dontwarn com.sun.jna.**
+```
+
 ## Next Steps
 
 Now that you've installed WalletKit, you're ready to start integrating it. The next section will walk you through the process of setting up your project to use the SDK.