chore(infra): cn-side mysql/redis/minio compose

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

infra/docker-compose.yml

@@ -0,0 +1,38 @@
+# infra/docker-compose.yml
+name: photo-live
+services:
+  mysql-cn:
+    image: mysql:8.4
+    command: --character-set-server=utf8mb4 --collation-server=utf8mb4_0900_bin
+    environment:
+      MYSQL_ROOT_PASSWORD: root
+      MYSQL_DATABASE: photo_cn
+    ports: ["3306:3306"]
+    volumes: [mysql-cn-data:/var/lib/mysql]
+    healthcheck:
+      test: ["CMD", "mysqladmin", "ping", "-h", "localhost", "-uroot", "-proot"]
+      interval: 5s
+      retries: 12
+  redis-cn:
+    image: redis:7-alpine
+    ports: ["6379:6379"]
+    healthcheck: { test: ["CMD", "redis-cli", "ping"], interval: 5s, retries: 12 }
+  minio:
+    image: quay.io/minio/minio:latest
+    command: server /data --console-address ":9001"
+    environment:
+      MINIO_ROOT_USER: photo-dev
+      MINIO_ROOT_PASSWORD: photo-dev-secret
+    ports: ["9000:9000", "9001:9001"]
+    volumes: [minio-data:/data]
+  minio-init:
+    image: quay.io/minio/mc:latest
+    depends_on: { minio: { condition: service_started } }
+    entrypoint: >
+      /bin/sh -c "
+      until mc alias set dev http://minio:9000 photo-dev photo-dev-secret; do sleep 1; done;
+      mc mb -p dev/photo-dev || true;
+      mc anonymous set none dev/photo-dev;"
+volumes:
+  mysql-cn-data:
+  minio-data: