chore: add VRE stack configs (JupyterHub + Zeppelin) + lakehouse components

- Add VRE directory with JupyterHub + Zeppelin docker-compose configs
- Add Gravitino, Flink, Kafka, MinIO, Trino lakehouse stack
- Add Superset, Metabase, StarRocks analytics tools
- Session reprise après crash 2026-06-01

Infrastructure: 86 conteneurs total
Known issues: Kafka (no ZK conn), Trino (node.env null), JupyterHub (DB path)

vre/zeppelin/shiro.ini

@@ -0,0 +1,20 @@
+[main]
+sessionManager = org.apache.shiro.web.session.mgt.DefaultWebSessionManager
+securityManager.sessionManager = $sessionManager
+
+sessionManager.sessionIdCookieEnabled = true
+sessionManager.sessionIdUrlRewritingEnabled = true
+
+shiro.loginUrl = /login
+
+[users]
+admin = Digitribe972, admin
+
+[roles]
+admin = *
+
+[urls]
+/api/version = anon
+/api/cluster/address = anon
+/login = authc
+/** = authc