DOC: Added health check and team management (#3630)

### What problem does this PR solve?



### Type of change


- [x] Documentation Update

docs/guides/deploy_local_llm.mdx

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-sidebar_position: 6
+sidebar_position: 7
 slug: /deploy_local_llm
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docs/guides/llm_api_key_setup.md

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-sidebar_position: 5
+sidebar_position: 6
 slug: /llm_api_key_setup
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docs/guides/manage_files.md

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-sidebar_position: 4
+sidebar_position: 5
 slug: /manage_files
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docs/guides/manage_team_members.md

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+---
+sidebar_position: 4
+slug: /manage_team_members
+---
+
+# Manage team members
+
+Invite or remove team members, join or leave a team.
+
+By default, each RAGFlow user is assigned a single team named after their name. RAGFlow allows you to invite RAGFlow users to your team. Your team members can help you:
+
+- Upload documents to your datasets.
+- Update document configurations in your datasets.
+- Parse documents in your datasets.
+
+:::tip NOTE
+Team members are currently *not* allowed to invite users to your team, and only you, the team owner, is permitted to do so.
+:::
+
+To enter the **Team** page, click on your avatar on the top right corner of the page **>** Team:
+
+![team](https://github.com/user-attachments/assets/0eac2503-26bc-4568-b3f2-bcd84069a07a)
+
+_On the **Team** page, you can view the information about members of your team and the teams you have joined._
+
+## Invite team members
+
+You are, by default, the owner of your own team and the only person permitted to invite users to join your team or remove team members.
+
+![invite_team_member](https://github.com/user-attachments/assets/75e19d53-3a00-480e-8b16-fe00c23c4486)
+
+## Remove team members
+
+![remove_members](https://github.com/user-attachments/assets/5c1a6ab5-8862-47a0-ad09-77fe88866508)
+
+## Accept or decline team invite
+
+![accept_or_decline_team_invite](https://github.com/user-attachments/assets/6a2cb61f-03d5-4423-9ed1-71df97ff4114)
+

docs/guides/run_health_check.md

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+---
+sidebar_position: 7
+slug: /run_health_check
+---
+
+# Run health check on RAGFlow's dependencies
+
+Double check the health status of RAGFlow's dependencies.
+
+The operation of RAGFlow depends on four services:
+
+- **Elasticsearch** (default) or [Infinity](https://github.com/infiniflow/infinity) as the document engine
+- **MySQL**
+- **Redis**
+- **MinIO** for object storage
+
+If an exception or error occurs related to any of the above services, such as `Exception: Can't connect to ES cluster`, refer to this document to check their health status.
+
+You can also click you avatar on the top right corner of the page **>** System to view the visualized health status of RAGFlow's core services. The following screenshot shows that all services are 'green' (running healthily). The task executor displays the *cumulative* number of completed and failed document parsing tasks from the past 30 minutes:
+
+![system_status_page](https://github.com/user-attachments/assets/b0c1a11e-93e3-4947-b17a-1bfb4cdab6e4)
+
+Services with a yellow or red light are not running properly. The following is a screenshot of the system page after running `docker stop ragflow-es-10`:
+
+![es_failed](https://github.com/user-attachments/assets/06056540-49f5-48bf-9cc9-a7086bc75790)
+
+You can click on a specific 30-second time interval to view the details of completed and failed tasks:
+
+![done_tasks](https://github.com/user-attachments/assets/49b25ec4-03af-48cf-b2e5-c892f6eaa261)
+
+![done_vs_failed](https://github.com/user-attachments/assets/eaa928d0-a31c-4072-adea-046091e04599)

docs/guides/upgrade_ragflow.mdx

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-sidebar_position: 7
+sidebar_position: 11
 slug: /upgrade_ragflow
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docs/references/http_api_reference.md

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 # HTTP API Reference
 
-A complete reference for RAGFlow's RESTful API. Before proceeding, please ensure you [have your RAGFlow API key ready for authentication](../guides/develop/acquire_ragflow_api_key.md).
+A complete reference for RAGFlow's RESTful API. Before proceeding, please ensure you [have your RAGFlow API key ready for authentication](https://ragflow.io/docs/dev/acquire_ragflow_api_key).
 
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docs/references/python_api_reference.md

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 # Python API Reference
 
-A complete reference for RAGFlow's Python APIs. Before proceeding, please ensure you [have your RAGFlow API key ready for authentication](../guides/develop/acquire_ragflow_api_key.md).
+A complete reference for RAGFlow's Python APIs. Before proceeding, please ensure you [have your RAGFlow API key ready for authentication](https://ragflow.io/docs/dev/acquire_ragflow_api_key).
 
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