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.metabase.yml

@@ -0,0 +1,71 @@
+# Metabase - BI Dashboard for Smart City Digital Twin
+# Usage: docker compose -f docker-compose.metabase.yml up -d
+# Access: https://metabase.digitribe.fr
+
+version: '3.8'
+
+networks:
+  smartcity-shared:
+    external: true
+  traefik-public:
+    external: true
+
+volumes:
+  metabase_data:
+    name: smart-city-metabase-data
+
+services:
+  metabase-db:
+    image: postgres:15-alpine
+    container_name: metabase-postgres
+    restart: unless-stopped
+    networks:
+      - smartcity-shared
+    environment:
+      POSTGRES_DB: metabase
+      POSTGRES_USER: metabase
+      POSTGRES_PASSWORD: Digitribe972
+    volumes:
+      - metabase_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U metabase"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  metabase:
+    image: metabase/metabase:latest
+    container_name: metabase-app
+    restart: unless-stopped
+    networks:
+      - smartcity-shared
+      - traefik-public
+    depends_on:
+      metabase-db:
+        condition: service_healthy
+    environment:
+      MB_DB_TYPE: postgres
+      MB_DB_DBNAME: metabase
+      MB_DB_PORT: 5432
+      MB_DB_USER: metabase
+      MB_DB_PASS: Digitribe972
+      MB_DB_HOST: metabase-postgres
+      MB_SITE_NAME: "Smart City Martinique"
+      MB_SITE_URL: "https://metabase.digitribe.fr"
+      MB_APPLICATION_DB: "file:/metabase-data/metabase.db"
+      MB_ENABLE_PASSWORD_LOGIN: "true"
+      MB_ADMIN_EMAIL: admin@digitribe.fr
+      MB_ADMIN_PASSWORD: Digitribe972
+      MB_JETTY_PORT: 3000
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.metabase.rule=Host(`metabase.digitribe.fr`)"
+      - "traefik.http.routers.metabase.entrypoints=websecure"
+      - "traefik.http.routers.metabase.tls.certresolver=letsencrypt"
+      - "traefik.http.services.metabase.loadbalancer.server.port=3000"
+    healthcheck:
+      test: ["CMD-SHELL", "curl -f http://localhost:3000/api/health || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 5
+      start_period: 120s