Update: cache module, security modules and build

target/classes/application.properties

@@ -1,7 +1,10 @@
 spring.application.name=springboot-scaffold
-server.port=8082
+server.port=8083
+server.forward-headers-strategy=framework
 
-# H2 Database
+spring.profiles.active=${APP_PROFILE:learn}
+
+# H2 Database (default baseline; learn profile overrides to in-memory)
 spring.h2.console.enabled=true
 spring.datasource.url=jdbc:h2:file:~/h2/springboot_scaffold
 spring.datasource.driverClassName=org.h2.Driver