closes #67

[wildfluss]

this builds latest

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] Acme Keycloak Project 1.0.0.0-SNAPSHOT ............. SUCCESS [  0.021 s]
[INFO] Acme Keycloak Extensions 1.0.0.0-SNAPSHOT .......... SUCCESS [ 38.372 s]
[INFO] Acme Keycloak Docker Image 1.0.0.0-SNAPSHOT ........ SUCCESS [  0.001 s]
[INFO] Acme Backend API Quarkus 1.0-SNAPSHOT .............. SUCCESS [01:31 min]
[INFO] backend-api-springboot 0.0.1-SNAPSHOT .............. SUCCESS [01:01 min]
[INFO] backend-api-springboot-reactive 0.0.1-SNAPSHOT ..... SUCCESS [ 19.417 s]
[INFO] backend-api-springboot3 0.0.1-SNAPSHOT ............. SUCCESS [01:24 min]
[INFO] offline-session-client 1.0-SNAPSHOT ................ SUCCESS [  0.286 s]
[INFO] spring-boot-device-flow 0.0.1-SNAPSHOT ............. SUCCESS [  0.161 s]
[INFO] frontend-webapp-springboot 0.0.1-SNAPSHOT .......... SUCCESS [ 14.598 s]
[INFO] frontend-webapp-springboot3 3.4.7 .................. SUCCESS [ 13.118 s]
[INFO] bff-springboot 0.0.1-SNAPSHOT ...................... SUCCESS [  8.998 s]
[INFO] bff-springboot3 0.0.1-SNAPSHOT ..................... SUCCESS [ 12.985 s]
[INFO] jwt-client-authentication 0.0.1-SNAPSHOT ........... SUCCESS [  0.165 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  05:46 min
[INFO] Finished at: 2025-09-14T15:02:53+03:00
[INFO] ------------------------------------------------------------------------
keycloak-project-example (main #32cf2dbc) > which java
/opt/homebrew/bin//java
keycloak-project-example (main #32cf2dbc) > java -version
openjdk version "21.0.8" 2025-07-15
OpenJDK Runtime Environment Homebrew (build 21.0.8)
OpenJDK 64-Bit Server VM Homebrew (build 21.0.8, mixed mode, sharing)
keycloak-project-example (main #32cf2dbc) > mvn --version
Apache Maven 3.9.11 (3e54c93a704957b63ee3494413a2b544fd3d825b)
Maven home: /Users/ysz/apache-maven-3.9.11
Java version: 21.0.8, vendor: Homebrew, runtime: /opt/homebrew/Cellar/openjdk@21/21.0.8/libexec/openjdk.jdk/Contents/Home
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "26.0", arch: "aarch64", family: "mac"