Phase 0 : scaffolding complet

- Structure monorepo (backend Symfony, frontend React/Vite)
- Docker : FrankenPHP + PostgreSQL/PostGIS + Redis + Traefik labels
- Caddyfile, Dockerfile, .env.example, .gitignore
- MapLibre GL JS + react-map-gl installés
- Roadmap mise à jour

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docker-compose.yml

@@ -0,0 +1,52 @@
+services:
+  php:
+    build:
+      context: .
+      dockerfile: docker/php/Dockerfile
+    restart: unless-stopped
+    volumes:
+      - ./backend:/app
+      - ./frontend/dist:/app/public/spa
+    depends_on:
+      - db
+      - redis
+    networks:
+      - internal
+      - traefik
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.sargasses.rule=Host(`radarsargasses971.com`)"
+      - "traefik.http.routers.sargasses.entrypoints=websecure"
+      - "traefik.http.routers.sargasses.tls.certresolver=letsencrypt"
+      - "traefik.http.services.sargasses.loadbalancer.server.port=80"
+      - "traefik.docker.network=traefik"
+
+  db:
+    image: postgis/postgis:16-3.4
+    restart: unless-stopped
+    environment:
+      POSTGRES_DB: ${POSTGRES_DB:-sargasses}
+      POSTGRES_USER: ${POSTGRES_USER:-app}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+    volumes:
+      - db_data:/var/lib/postgresql/data
+    networks:
+      - internal
+
+  redis:
+    image: redis:7-alpine
+    restart: unless-stopped
+    volumes:
+      - redis_data:/data
+    networks:
+      - internal
+
+volumes:
+  db_data:
+  redis_data:
+
+networks:
+  internal:
+  traefik:
+    external: true
+    name: traefik  # à ajuster si ton réseau Traefik a un nom différent