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/resources/META-INF/persistence.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<persistence xmlns="https://jakarta.ee/xml/ns/persistence"
+             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+             xsi:schemaLocation="https://jakarta.ee/xml/ns/persistence
+             https://jakarta.ee/xml/ns/persistence/persistence_3_0.xsd"
+             version="3.0">
+
+    <persistence-unit name="MediaManagerPU" transaction-type="RESOURCE_LOCAL">
+        <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
+
+        <!-- Add entity classes here as they are created -->
+        <!-- <class>com.mediamanager.model.Media</class> -->
+
+        <properties>
+            <!-- Database connection properties will be set programmatically -->
+            <property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect"/>
+            <property name="hibernate.hbm2ddl.auto" value="update"/>
+            <property name="hibernate.show_sql" value="false"/>
+            <property name="hibernate.format_sql" value="true"/>
+            
+            <!-- Connection pool settings -->
+            <property name="hibernate.hikari.maximumPoolSize" value="10"/>
+            <property name="hibernate.hikari.minimumIdle" value="2"/>
+            <property name="hibernate.hikari.connectionTimeout" value="30000"/>
+        </properties>
+    </persistence-unit>
+
+</persistence>

src/main/resources/application.properties

@@ -0,0 +1,23 @@
+# Database Configuration
+db.url=jdbc:postgresql://localhost:5432/mediamanager
+db.username=mediamanager
+db.password=changeme
+db.driver=org.postgresql.Driver
+
+# HikariCP Connection Pool Settings
+db.pool.maximum-pool-size=10
+db.pool.minimum-idle=2
+db.pool.connection-timeout=30000
+db.pool.idle-timeout=600000
+db.pool.max-lifetime=1800000
+
+# Hibernate Settings
+hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
+hibernate.hbm2ddl.auto=update
+hibernate.show_sql=false
+hibernate.format_sql=true
+
+# IPC Configuration
+ipc.pipe.name=mediamanager-pipe
+ipc.pipe.path=/tmp/mediamanager
+ipc.buffer.size=8192

src/main/resources/log4j2.xml

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration status="WARN">
+    <Appenders>
+        <Console name="Console" target="SYSTEM_OUT">
+            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss} [%t] %-5level %logger{36} - %msg%n"/>
+        </Console>
+        
+        <RollingFile name="FileAppender" fileName="logs/mediamanager.log"
+                     filePattern="logs/mediamanager-%d{yyyy-MM-dd}-%i.log">
+            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss} [%t] %-5level %logger{36} - %msg%n"/>
+            <Policies>
+                <TimeBasedTriggeringPolicy interval="1"/>
+                <SizeBasedTriggeringPolicy size="10MB"/>
+            </Policies>
+            <DefaultRolloverStrategy max="10"/>
+        </RollingFile>
+    </Appenders>
+    
+    <Loggers>
+        <Logger name="com.mediamanager" level="debug" additivity="false">
+            <AppenderRef ref="Console"/>
+            <AppenderRef ref="FileAppender"/>
+        </Logger>
+        
+        <Logger name="org.hibernate" level="info" additivity="false">
+            <AppenderRef ref="Console"/>
+            <AppenderRef ref="FileAppender"/>
+        </Logger>
+        
+        <Root level="info">
+            <AppenderRef ref="Console"/>
+            <AppenderRef ref="FileAppender"/>
+        </Root>
+    </Loggers>
+</Configuration>