feat: Docker support for L1 server

- Dockerfile for L1 server/worker
- docker-compose.yml with Redis
- Environment variables for Redis URL and cache dir

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docker-compose.yml

@@ -0,0 +1,58 @@
+version: "3.8"
+
+services:
+  redis:
+    image: redis:7-alpine
+    volumes:
+      - redis_data:/data
+    networks:
+      - artdag
+    deploy:
+      replicas: 1
+      restart_policy:
+        condition: on-failure
+
+  l1-server:
+    build: .
+    image: git.rose-ash.com/art-dag/l1-server:latest
+    ports:
+      - "8100:8100"
+    environment:
+      - REDIS_URL=redis://redis:6379/5
+    volumes:
+      - l1_cache:/data/cache
+    depends_on:
+      - redis
+    networks:
+      - artdag
+    deploy:
+      replicas: 1
+      restart_policy:
+        condition: on-failure
+
+  l1-worker:
+    build: .
+    image: git.rose-ash.com/art-dag/l1-server:latest
+    command: celery -A celery_app worker --loglevel=info
+    environment:
+      - REDIS_URL=redis://redis:6379/5
+    volumes:
+      - l1_cache:/data/cache
+      - effects:/app/effects
+    depends_on:
+      - redis
+    networks:
+      - artdag
+    deploy:
+      replicas: 2
+      restart_policy:
+        condition: on-failure
+
+volumes:
+  redis_data:
+  l1_cache:
+  effects:
+
+networks:
+  artdag:
+    driver: overlay