feat: deploy Superset and Metabase behind Traefik

- Superset: docker-compose.superset.yml (app + postgres + redis)
  URL: https://superset.digitribe.fr
  Port: 8088 (internal), Traefik routes Host(superset.digitribe.fr)

- Metabase: docker-compose.metabase.yml (app + postgres)
  URL: https://metabase.digitribe.fr
  Port: 3000 (internal), Traefik routes Host(metabase.digitribe.fr)

- Traefik configs: 31-superset.yml, 32-metabase.yml
- Both services use smartcity-shared and traefik-public networks
- Both use letsencrypt TLS certificates

Verified:
- Superset: UP healthy, accessible via https://superset.digitribe.fr
- Metabase: UP healthy, accessible via https://metabase.digitribe.fr

docker-compose.superset.yml

@@ -0,0 +1,88 @@
+# Apache Superset - BI Dashboard for Smart City Digital Twin
+# Usage: docker compose -f docker-compose.superset.yml up -d
+# Access: https://superset.digitribe.fr
+
+version: '3.8'
+
+networks:
+  smartcity-shared:
+    external: true
+  traefik-public:
+    external: true
+
+volumes:
+  superset_data:
+    name: smart-city-superset-data
+  superset_redis:
+    name: smart-city-superset-redis
+
+services:
+  superset-redis:
+    image: redis:7-alpine
+    container_name: superset-redis
+    restart: unless-stopped
+    networks:
+      - smartcity-shared
+    volumes:
+      - superset_redis:/data
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  superset-db:
+    image: postgres:15-alpine
+    container_name: superset-postgres
+    restart: unless-stopped
+    networks:
+      - smartcity-shared
+    environment:
+      POSTGRES_DB: superset
+      POSTGRES_USER: superset
+      POSTGRES_PASSWORD: Digitribe972
+    volumes:
+      - superset_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U superset"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  superset:
+    image: apache/superset:4.0.0
+    container_name: superset-app
+    restart: unless-stopped
+    networks:
+      - smartcity-shared
+      - traefik-public
+    depends_on:
+      superset-db:
+        condition: service_healthy
+      superset-redis:
+        condition: service_healthy
+    environment:
+      SUPERSET_SECRET_KEY: superset-secret-key-change-me-2024
+      DATABASE_DIALECT: postgresql
+      DATABASE_HOST: superset-postgres
+      DATABASE_PORT: 5432
+      DATABASE_DB: superset
+      DATABASE_USER: superset
+      DATABASE_PASSWORD: Digitribe972
+      REDIS_HOST: superset-redis
+      REDIS_PORT: 6379
+      SUPERSET_ENV: production
+      SUPERSET_LOAD_EXAMPLES: "false"
+      MAPBOX_API_KEY: ""
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.superset.rule=Host(`superset.digitribe.fr`)"
+      - "traefik.http.routers.superset.entrypoints=websecure"
+      - "traefik.http.routers.superset.tls.certresolver=letsencrypt"
+      - "traefik.http.services.superset.loadbalancer.server.port=8088"
+    healthcheck:
+      test: ["CMD-SHELL", "curl -f http://localhost:8088/health || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 5
+      start_period: 120s