Add maven url to gradle plugin

[radoslawrolka]

📝 Description

• bumped gradle & expo plugin versions
• updated docs (removed mentions about adding allprojects {repositories { url ...}}}
• updated tests
• added project.uri("https://packages.rnrepo.org/releases") inside gradle plugin

🎯 Type of Change

• ✨ New feature (non-breaking change which adds functionality)

[Copilot]

Pull request overview

This PR centralizes RNRepo Maven repository configuration inside the Android Gradle plugin, and updates the Expo config plugin + docs to stop requiring manual allprojects { repositories { ... } } setup.

Changes:

• Add RNRepo Maven repository registration to the PrebuildsPlugin at apply-time.
• Remove allprojects Maven repo injection from the Expo config plugin and adjust its tests accordingly.
• Update website/docs/READMEs to remove instructions for manually adding the RNRepo Maven repository.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
packages/website/src/components/GettingStarted.astro	Updates Getting Started snippets to remove manual Maven repo setup.
packages/expo-config-plugin/src/withRNRepoPlugin.ts	Removes the Android allprojects Maven repo injection mod.
packages/expo-config-plugin/tests/withRNRepoPlugin.test.ts	Updates tests to no longer expect Maven repo injection.
packages/build-tools/package.json	Bumps build-tools version and updates the packaged Gradle plugin jar filename.
packages/build-tools/gradle-plugin/src/main/kotlin/org/rnrepo/tools/prebuilds/PrebuildsPlugin.kt	Adds addRNRepoRepository(project) to register the RNRepo Maven repository programmatically.
packages/build-tools/gradle-plugin/build.gradle	Bumps Gradle plugin base version to 0.3.1.
packages/build-tools/README.md	Removes manual Maven repo instructions from Android setup docs.
README.md	Removes manual Maven repo instructions from the main Android setup docs.

Comments suppressed due to low confidence (1)

packages/build-tools/README.md:49

• Same as the root README: removing the Maven repo instructions is fine when project repositories are allowed, but Gradle builds configured with RepositoriesMode.FAIL_ON_PROJECT_REPOS may still require adding the RNRepo repo under dependencyResolutionManagement in settings.gradle. Consider documenting that exception here to avoid setup failures that look like plugin bugs.

### Android Configuration

Add the following to your project's `android/build.gradle` file:

```diff
buildscript {
   dependencies {
      ...
+     def rnrepoDir = new File(
+       providers.exec {
+         workingDir(rootDir)
+         commandLine("node", "--print", "require.resolve('@rnrepo/build-tools/package.json')")
+       }.standardOutput.asText.get().trim()
+     ).getParentFile().absolutePath
+     classpath fileTree(dir: "${rnrepoDir}/gradle-plugin/build/libs", include: ["prebuilds-plugin-*.jar"])
   }
}

Then, apply the plugin in your android/app/build.gradle file:

apply plugin: "com.facebook.react"
+ apply plugin: "org.rnrepo.tools.prebuilds-plugin"

</details>



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