S16 postgresql opslag added

agiledancers-be/src/main/resources/application.properties

@@ -1,7 +1,7 @@
 quarkus.application.name=agiledancers
 quarkus.http.host=0.0.0.0
 
-# Scheduling is synchronous with a 30-minute solver limit.
+# Keep idle SSE connections alive alongside the 30-minute solver limit.
 quarkus.http.idle-timeout=31M
 quarkus.jackson.fail-on-unknown-properties=true
 
@@ -9,3 +9,17 @@ quarkus.jackson.fail-on-unknown-properties=true
 %test.quarkus.jacoco.data-file=target/jacoco.exec
 %test.quarkus.jacoco.reuse-data-file=true
 %test.quarkus.jacoco.report=false
+
+# Production requires an explicitly configured database; initialization failures prevent startup.
+quarkus.datasource.db-kind=postgresql
+%prod.quarkus.datasource.jdbc.url=${DATABASE_URL}
+%prod.quarkus.datasource.username=${DATABASE_USER}
+%prod.quarkus.datasource.password=${DATABASE_PASSWORD}
+quarkus.datasource.jdbc.acquisition-timeout=5S
+quarkus.flyway.migrate-at-start=true
+quarkus.datasource.devservices.image-name=postgres:17.6
+
+# Flyway owns DDL; Hibernate validates its JPA mappings against the migrated schema.
+quarkus.hibernate-orm.schema-management.strategy=validate
+quarkus.hibernate-orm.request-scoped.enabled=false
+quarkus.datasource.jdbc.transaction-isolation-level=repeatable-read