add files infra docker service for data platform

06-analytics/README.md

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+# 06-analytics: Apache Superset BI
+
+## Start
+```bash
+# Create superset database first
+docker exec postgres psql -U postgres -c "CREATE DATABASE superset;"
+
+# Start superset
+docker compose --env-file ../.env.global up -d
+```
+
+## Access
+Internal - configure Nginx Proxy Manager to expose at `/superset`
+
+## Default Login
+- Username: see SUPERSET_ADMIN_USERNAME in .env.global
+- Password: see SUPERSET_ADMIN_PASSWORD in .env.global
+
+## Keycloak Integration
+Configure OAuth in superset_config.py after Keycloak setup