feat: Add database configuration and update routing for game creation

knockoutwhistweb/conf/db.conf

@@ -0,0 +1,28 @@
+
+# Database configuration - PostgreSQL with environment variables
+db.default.driver=org.postgresql.Driver
+db.default.url=${?DATABASE_URL}
+db.default.username=${?DB_USER}
+db.default.password=${?DB_PASSWORD}
+db.default.password=""
+
+# JPA/Hibernate configuration
+jpa.default=defaultPersistenceUnit
+
+# Hibernate specific settings
+hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
+hibernate.hbm2ddl.auto=update
+hibernate.show_sql=false
+hibernate.format_sql=true
+hibernate.use_sql_comments=true
+
+# Connection pool settings
+db.default.hikaricp.maximumPoolSize=20
+db.default.hikaricp.minimumIdle=5
+db.default.hikaricp.connectionTimeout=30000
+db.default.hikaricp.idleTimeout=600000
+db.default.hikaricp.maxLifetime=1800000
+
+# PostgreSQL specific settings
+db.default.hikaricp.connectionTestQuery="SELECT 1"
+db.default.hikaricp.poolName="KnockOutWhistPool"