- Extend `test.proto` schema with heartbeat and echo message definitions.
- Register `HeartbeatHandler` in `DelegateActionManager`.
- Refactor Log4j2 configuration to standardize log levels.
- Optimize client wait time in `IPCManager` for reduced latency.
- Enabled `immediateFlush` for log appenders and disabled `shutdownHook` in Log4j2 configuration.
- Enhanced shutdown hook with graceful Log4j2 termination and extended delay for log flushing.
- Improved database connection closure logging in `DatabaseManager`.
- Integrated Maven Shade Plugin to create executable JARs with all dependencies.
- Added `.gitignore` for common IDE and build artifacts.
- Configured `pom.xml` with dependencies: PostgreSQL, Hibernate, HikariCP, Log4j 2, Jackson, JUnit 5.
- Created `Media` entity with JPA annotations.
- Added `application.properties` for database and IPC configuration.
- Configured Log4j 2 with console and rolling file appenders.
- Provided `README.md` with setup instructions.
- Included `MediaManagerApplication` class as a starting point.
Gustavo Henrique Santos Souza de Miranda