Add Discord APKTool decompilation (Smali source for modding)

- Imported from https://github.com/supermegamestre/Project-Real-Resurrection-3
- APKTool decompilation (Smali bytecode) for modding and rebuilding APK
- Supports both 32-bit (armeabi-v7a) and 64-bit (arm64-v8a) architectures
- Includes full Smali source, resources, and native libraries
- Ready to rebuild APK after modifications with apktool b command
- Added comprehensive README-apktool.md with modding guide

This branch complements the JADX branches:
- Use JADX (main/discord-community) to UNDERSTAND code (readable Java)
- Use APKTool (this branch) to MODIFY and REBUILD APK (editable Smali)

Total: 44,417 files, 538.51 MB Smali source code

unknown/gatewayprotocol/v1/ad_player_config_response.proto

@@ -0,0 +1,23 @@
+syntax = "proto3";
+
+package gatewayprotocol.v1;
+
+import "gatewayprotocol/v1/error.proto";
+import "gatewayprotocol/v1/webview_configuration.proto";
+
+option swift_prefix = "Gateway";
+
+message AdPlayerConfigResponse {
+  // Tracking Token is used to track operative events during impression opportunity.
+  bytes tracking_token = 1;
+  // Impression Configuration is used by Ad Player(WebView) to render the ad.
+  bytes impression_configuration = 2;
+  // A version of the impression configuration.
+  int32 impression_configuration_version = 3;
+  // WebView configuration which should be used by Native to start Ad Player.
+  optional WebViewConfiguration webview_configuration = 4;
+  // Ad Data Refresh Token is used to refresh the ad if impression occurred.
+  bytes ad_data_refresh_token = 5;
+  // If set, there was an error processing the request.
+  optional Error error = 6;
+}