优化

website/docs/devops/_category_.json

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+{
+  "label": "Operations",
+  "position": 15
+}

website/docs/devops/mongodb.md

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+---
+sidebar_position: 1
+title: Database management
+---
+
+`Tailchat` uses mongodb as the main database to store user information
+
+In `docker`, common operation and maintenance commands are as follows:
+
+```bash
+# backup
+docker exec -i <IMAGE_NAME> mongodump -d tailchat --archive > ./backup.archive
+
+# restore
+docker exec -i <IMAGE_NAME> mongorestore -d tailchat --archive < ./backup.archive
+```
+
+Among them `<IMAGE_NAME>` represents the name of the mongodb image, and `-d tailchat` represents the name of the database used, the default database name is `tailchat`, you can modify it through the environment variable `MONGO_URL`
+
+:::info
+For user data security, it is recommended to create a scheduled task to regularly back up the database file
+:::