给内测补上每日加密备份、宕机告警和日志上限。

主机安装和一次恢复演练留给产品。页面没有变化。

Co-Authored-By: Grok (agent loop)

deploy/docker-compose.server.yml

@@ -5,6 +5,11 @@ services:
       context: ..
       dockerfile: deploy/railway-api.Dockerfile
     restart: unless-stopped
+    logging:
+      driver: json-file
+      options:
+        max-size: "20m"
+        max-file: "10"
     env_file:
       - ${APP_ENV_FILE:-../.env.production}
     environment:
@@ -35,6 +40,11 @@ services:
         NEXT_PUBLIC_SUPABASE_URL: ${NEXT_PUBLIC_SUPABASE_URL:-}
         NEXT_PUBLIC_SUPABASE_ANON_KEY: ${NEXT_PUBLIC_SUPABASE_ANON_KEY:-}
     restart: unless-stopped
+    logging:
+      driver: json-file
+      options:
+        max-size: "20m"
+        max-file: "10"
     env_file:
       - ${APP_ENV_FILE:-../.env.production}
     environment:
@@ -57,6 +67,11 @@ services:
   caddy:
     image: caddy:2-alpine
     restart: unless-stopped
+    logging:
+      driver: json-file
+      options:
+        max-size: "20m"
+        max-file: "10"
     environment:
       SITE_ADDRESS: ${SITE_ADDRESS:-https://jyotisha.chat}
     ports: