Apply common Stream conventions plugins

[gpunto]

Goal

Part of AND-864

We now have started publishing Stream Gradle plugins, so I'm doing the initial integration here. Atm they don't do a lot (they just configure the Java version), but I'm building upon this first version to move more and more shared configuration to them.

Implementation

Replace android.gradle script with plugin application.

Testing

Verify that the project & tests build and run.

Checklist

• Issue linked (if any)
• Tests/docs updated
• I have signed the Stream CLA (required for external contributors)

[github-actions]

PR checklist ✅

All required conditions are satisfied:

• Title length is OK (or ignored by label).
• At least one pr: label exists.
• Sections ### Goal, ### Implementation, and ### Testing are filled.

🎉 Great job! This PR is ready for review.

[Copilot]

Pull Request Overview

This PR refactors the build configuration to centralize common Android and Java compilation settings through custom convention plugins. SDK versions and Java compatibility settings are moved from individual module build files to a centralized configuration in libs.versions.toml and applied via the new stream.* convention plugins.

• Introduced new stream.* convention plugins for Android and Java library/application modules
• Moved SDK version constants from Configuration.kt to libs.versions.toml
• Centralized compilation configuration in root build.gradle.kts using subprojects blocks

Reviewed Changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
gradle/libs.versions.toml	Added SDK version declarations and new stream.* convention plugin references
buildSrc/src/main/kotlin/io/getstream/core/Configuration.kt	Removed SDK version constants (now centralized in libs.versions.toml)
build.gradle.kts	Applied stream.project plugin and added centralized SDK configuration for Android subprojects
stream-android-core/build.gradle.kts	Replaced standard Android library plugin with convention plugin and removed local SDK/Java configurations
stream-android-core-annotations/build.gradle.kts	Replaced standard Java library plugin with convention plugin and removed local Java version configurations
app/build.gradle.kts	Replaced standard Android application plugin with convention plugin and removed local SDK/Java configurations
settings.gradle.kts	Added mavenLocal() repository and removed unused import

Comments suppressed due to low confidence (1)

stream-android-core/build.gradle.kts:4

• [nitpick] The import io.getstream.core.Configuration is now only used for Configuration.artifactGroup since SDK constants have been removed. Consider if this import and the remaining Configuration constants should also be migrated to the centralized configuration approach for consistency.

import io.getstream.core.Configuration

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[sonarqubecloud]

Quality Gate passed

Issues
21 New issues
0 Accepted issues

Measures
0 Security Hotspots
85.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud