Document AIDL usage and IPC flow in README

[Copilot]

The issue asks how this project uses AIDL. The repository lacked a concise explanation of the AIDL/IPC flow and the key files that implement it.

• Documentation
  • Added a README section describing Shizuku-based Binder IPC and the hidden-api AIDL stubs used by the app.
  • Listed the core classes and their roles (service lookup, install sessions, callback handling, API wrappers).

Example (from the new README section):

IPackageManager.Stub.asInterface(...)
IPackageInstaller / IPackageInstallerSession
IIntentSenderAdaptor for install result callbacks

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• dl.google.com
  • Triggering command: /usr/lib/jvm/temurin-17-jdk-amd64/bin/java /usr/lib/jvm/temurin-17-jdk-amd64/bin/java --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED --add-opens=java.base/java.nio.charset=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED -Xmx2048m -Dfile.encoding=UTF-8 -Duser.country -Duser.language=en -Duser.variant -cp /home/REDACTED/.gradle/wrapper/dists/gradle-8.4-bin/1w5dpkrfk8irigvoxmyhowfim/gradle-8.4/lib/gradle-launcher-8.4.jar -javaagent:/home/REDACTED/.gradle/wrapper/dists/gradle-8.4-bin/1w5dpkrfk8irigvoxmyhowfim/gradle-8.4/lib/agents/gradle-instrumentation-agent-8.4.jar org.gradle.launcher.daemon.bootstrap.GradleDaemon 8.4 (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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