Add Keycloak realm import and LDAP role groups

- Auto-import the clustercockpit realm on Keycloak start
- Rewrite the generated LDAP directory with cc-* role groups and dev users
- Move config.json to the main/nats/auth schema; cc-backend now on :8088
- Add resetDev.sh to tear down containers, volumes and generated data
- Bump cc-metric-store build image to golang 1.26.4
- Ignore all of data/ (generated by dataGenerationScript.sh)

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

setupDev.sh

@@ -65,12 +65,8 @@ if [ ! -d var ]; then
   wget https://hpc-mover.rrze.uni-erlangen.de/HPC-Data/0x7b58aefb/eig7ahyo6fo2bais0ephuf2aitohv1ai/job-archive-demo.tar
   tar xf job-archive-demo.tar
   rm ./job-archive-demo.tar
-
-  cp ./configs/env-template.txt .env
   cp ../misc/config.json config.json
 
-  sed -i 's/"addr": *"127\.0\.0\.1:8080"/"addr": "0.0.0.0:8080"/' config.json
-
   make
 
   ./cc-backend -migrate-db
@@ -113,7 +109,6 @@ cd ../..
 $DOCKER_COMPOSE build
 $DOCKER_COMPOSE up -d
 
-
 echo ""
 echo "|--------------------------------------------------------------------------------------|"
 echo "| Check logs for each slurm service by using these commands:                           |"