- Updated Kotlin compiler and JVM toolchain to target JVM 25 in all subprojects.
- Enforced stable `kotlinx-serialization-json:1.7.3` version to prevent resolution issues.
- Introduced JS bundle size budget checks for frontend shells with gzip support and reporting.
- Refined and reorganized Gradle module includes in `settings.gradle.kts`.
- Removed legacy and redundant dependency configurations for improved clarity.
- Updated `springBoot` to version `4.0.1` for compatibility improvements.
- Reactivated and explicitly defined `reactor-kafka` dependency.
- Added missing `spring-boot-starter-aop` definition to dependency catalog.
stefan