refactor: réorganiser Dockerfiles et scripts par module

Réorganise la structure Docker pour plus de cohérence dans le monorepo.
Chaque module (backend, docs) a maintenant ses propres Dockerfiles et scripts.

Changements:
- backend/docker/ : Dockerfile (prod) + dev.Dockerfile (hot reload) + init script
- docs/docker/ : mkdocs.Dockerfile + pdf.Dockerfile
- docs/scripts/ : generate-bdd-docs.py + generate-pdf-docs.py
- Déplace docker-compose.yml dans backend/
- Supprime scripts obsolètes (fix-markdown-*.sh, remove-broken-links.sh)
- Déplace .dockerignore à la racine
- Met à jour Makefile avec nouveaux chemins

Organisation finale:
- backend/ : tout ce qui concerne l'API backend
- docs/ : tout ce qui concerne la documentation
- scripts/ : uniquement setup.sh (scripts généraux du projet)

backend/docker-compose.yml

@@ -0,0 +1,111 @@
+version: '3.8'
+
+services:
+  # Backend API
+  api:
+    build:
+      context: .
+      dockerfile: docker/dev.Dockerfile
+    ports:
+      - "8080:8080"
+    volumes:
+      - .:/app
+      - /app/tmp
+    env_file:
+      - ./.env
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+      zitadel:
+        condition: service_healthy
+    networks:
+      - roadwave-network
+
+  # PostgreSQL + PostGIS
+  postgres:
+    image: postgis/postgis:16-3.4-alpine
+    ports:
+      - "5432:5432"
+    environment:
+      POSTGRES_DB: roadwave_dev
+      POSTGRES_USER: roadwave
+      POSTGRES_PASSWORD: dev_password
+      POSTGRES_MULTIPLE_DATABASES: zitadel
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+      - ./docker/init-multiple-databases.sh:/docker-entrypoint-initdb.d/init-multiple-databases.sh
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U roadwave"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+    networks:
+      - roadwave-network
+
+  # Redis (caching)
+  redis:
+    image: redis:7-alpine
+    ports:
+      - "6379:6379"
+    volumes:
+      - redis_data:/data
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 5s
+      timeout: 3s
+      retries: 5
+    networks:
+      - roadwave-network
+
+  # Zitadel (authentication)
+  zitadel:
+    image: ghcr.io/zitadel/zitadel:latest
+    ports:
+      - "8081:8080"
+    environment:
+      ZITADEL_DATABASE_POSTGRES_HOST: postgres
+      ZITADEL_DATABASE_POSTGRES_PORT: 5432
+      ZITADEL_DATABASE_POSTGRES_DATABASE: zitadel
+      ZITADEL_DATABASE_POSTGRES_USER: roadwave
+      ZITADEL_DATABASE_POSTGRES_PASSWORD: dev_password
+      ZITADEL_DATABASE_POSTGRES_ADMIN_USERNAME: roadwave
+      ZITADEL_DATABASE_POSTGRES_ADMIN_PASSWORD: dev_password
+      ZITADEL_EXTERNALSECURE: "false"
+      ZITADEL_EXTERNALPORT: 8081
+      ZITADEL_MASTERKEYPATH: /zitadel-masterkey
+    volumes:
+      - zitadel_data:/zitadel-masterkey
+    depends_on:
+      postgres:
+        condition: service_healthy
+    healthcheck:
+      test: ["CMD", "wget", "--spider", "-q", "http://localhost:8080/debug/ready"]
+      interval: 10s
+      timeout: 5s
+      retries: 10
+      start_period: 30s
+    networks:
+      - roadwave-network
+
+  # Adminer (database admin)
+  adminer:
+    image: adminer:latest
+    ports:
+      - "8082:8080"
+    environment:
+      ADMINER_DEFAULT_SERVER: postgres
+    depends_on:
+      - postgres
+    networks:
+      - roadwave-network
+
+volumes:
+  postgres_data:
+  redis_data:
+  zitadel_data:
+
+networks:
+  roadwave-network:
+    driver: bridge