Switched container images in `dc-infra.yaml` to a custom Docker registry for better control and consistency across deployments. Added Keycloak with enhanced configurations and updated several container restart policies, memory allocations, and healthcheck settings for improved performance and compatibility.
- Updated Gradle version in `.env`, Dockerfiles, and wrapper to 9.3.1.
- Replaced alias-based application of `kotlinMultiplatform` plugin with direct `id` usage in subprojects to resolve "Plugin loaded multiple times" error.
- Applied centralized plugin management and Gradle daemon optimizations to improve Docker build stability and address KMP classloading issues.
- Marked Phase 3 of roadmap as complete and adjusted next steps.
- Added detailed report documenting the Sync type mismatch resolution.
- Commented out the `desktop-app` service from `dc-gui.yaml`.
