Initialize MediaManager-Core project with essential setup:

- 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.

src/main/java/com/mediamanager/MediaManagerApplication.java

@@ -0,0 +1,55 @@
+package com.mediamanager;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+
+public class MediaManagerApplication {
+    private static final Logger logger = LogManager.getLogger(MediaManagerApplication.class);
+    private static Properties config;
+
+    public static void main(String[] args) {
+        logger.info("Starting MediaManager Core Application...");
+
+        try {
+            // Load configuration
+            loadConfiguration();
+
+            // TODO: Initialize database connection
+            // TODO: Initialize IPC server with named pipes
+            // TODO: Start application services
+
+            logger.info("MediaManager Core started successfully");
+            logger.info("IPC Pipe: {}", config.getProperty("ipc.pipe.path") + "/" + config.getProperty("ipc.pipe.name"));
+
+            // Keep application running
+            Runtime.getRuntime().addShutdownHook(new Thread(() -> {
+                logger.info("Shutting down MediaManager Core...");
+                // TODO: Cleanup resources
+            }));
+
+        } catch (Exception e) {
+            logger.error("Failed to start MediaManager Core", e);
+            System.exit(1);
+        }
+    }
+
+    private static void loadConfiguration() throws IOException {
+        config = new Properties();
+        try (InputStream input = MediaManagerApplication.class.getClassLoader()
+                .getResourceAsStream("application.properties")) {
+            if (input == null) {
+                throw new IOException("Unable to find application.properties");
+            }
+            config.load(input);
+            logger.info("Configuration loaded successfully");
+        }
+    }
+
+    public static Properties getConfig() {
+        return config;
+    }
+}