[mattiasgeniar]

Description

junit:junit:4.13.2 is declared twice in build.gradle: once as testImplementation (correct) and once as implementation. The implementation line puts it in the release runtime classpath, so the published POM for io.ionic.libs:ioncamera-android lists JUnit with runtime scope:

<dependency>
  <groupId>junit</groupId>
  <artifactId>junit</artifactId>
  <version>4.13.2</version>
  <scope>runtime</scope>
</dependency>

This PR removes the implementation line. Nothing under src/main imports org.junit or org.hamcrest, and the unit tests keep JUnit through the existing testImplementation line.

Context

Every app that uses @capacitor/camera 8.x depends on this library, so it ships JUnit and its Hamcrest dependency inside the release APK. Capacitor's app template does not enable R8 for release builds, so for most apps nothing strips these classes later.

Measured on a production Capacitor 8.5 app, release build without R8 (the template default), identical except for this dependency:

	Before	After	Difference
APK size	12,849,908 B	12,745,218 B	−104,690 B (−102 KB)
Dex classes	20,277	19,882	−395
Defined dex methods	143,623	141,468	−2,155
junit / org.junit / org.hamcrest in the dex	21 KB / 128 KB / 18 KB	none

Release runtime classpath of the library itself:

	./gradlew dependencies --configuration releaseRuntimeClasspath
Before	junit:junit:4.13.2, org.hamcrest:hamcrest-core:1.3
After	neither

Type of changes

• Fix (non-breaking change which fixes an issue)
• Feature (non-breaking change which adds functionality)
• Refactor (cosmetic changes)
• Breaking change (change that would cause existing functionality to not work as expected)

Tests

• ./gradlew testDebugUnitTest assembleRelease on this branch: 60 tests, 0 failures, release AAR builds.
• releaseRuntimeClasspath before and after, as in the table above.
• APK comparison: the app's release build with exclude group: 'junit' and exclude group: 'org.hamcrest' on its releaseRuntimeClasspath, which is the dependency graph this change publishes, measured with apkanalyzer dex packages.

Screenshots (if appropriate)

n/a

Checklist

• Code follows code style of this project
• CHANGELOG.md file is correctly updated
• Changes require an update to the documentation
  • Documentation has been updated accordingly