### What problem does this PR solve?

Based on https://github.com/infiniflow/ragflow/issues/8740 
1. A better handle for 'NoneType' object is not subscriptable
2. Add some logs to get the internal message

### Type of change

- [x] Refactoring

### What problem does this PR solve?

Changed the default value of `chunk_token_num` from 128 to 512 in both
HTTP and Python API reference documentation to reflect the updated
configuration.

#8753

### Type of change

- [x] Documentation Update

### What problem does this PR solve?

Updated the default `chunk_token_num` value in `api_utils.py` and
`validation_utils.py` to 512 to accommodate larger text chunks. Adjusted
corresponding test cases in HTTP and SDK API tests to reflect this
change.

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

Feat: Test MCP server #3221

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

### What problem does this PR solve?


### Type of change

- [x] Documentation Update

### What problem does this PR solve?

When knowledgebase/dataset created by API, graphrag and raptor can be
null, and will trigger NoneType error when reach to this code, causing
chunking task not able to finish.

![image](https://github.com/user-attachments/assets/998a63e9-611b-4301-8808-24839a05be8a)

Proposed solution will result in None and pass the condition check
without error.

![image](https://github.com/user-attachments/assets/184374fb-e06a-46e6-b8ac-d66a3fd93b59)


### Type of change

-  ✅ Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?
https://github.com/infiniflow/ragflow/issues/8733

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

Feat: Display MCP multiple selection bar #3221

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

### What problem does this PR solve?

Add advanced document filter

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

### What problem does this PR solve?

Feat: List MCP servers #3221
### Type of change


- [x] New Feature (non-breaking change which adds functionality)

### What problem does this PR solve?

https://github.com/infiniflow/ragflow/issues/8719

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?


### Type of change

- [x] Documentation Update

### What problem does this PR solve?

- Validate dialog name in `dialog_app.py` to ensure it is a non-empty
string and does not exceed 255 bytes in UTF-8 encoding.

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

Change the data in the dataset page to be obtained using the interface,
and change the import to obtain all data every 15 seconds to obtain the
data of the current page every 5 seconds when parsing the existing file.
[#3221](https://github.com/infiniflow/ragflow/issues/3221)

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

Feat: Add note node #3221

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

### What problem does this PR solve?

This commit introduces a comprehensive test suite for the dialog app,
including tests for creating, updating, retrieving, listing, and
deleting dialogs. Additionally, the common.py file has been updated to
include necessary API endpoints and helper functions for dialog
operations.

### Type of change

- [x] Add test cases

### What problem does this PR solve?

1. Remove the useless pop logic due to already been checked at the if
logic
2. merge log logic

### Type of change

- [x] Refactoring

### What problem does this PR solve?

Added support for preview of txt, md, excel, csv, ppt, image, doc and
other files [#3221](https://github.com/infiniflow/ragflow/issues/3221)

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?
Feat: Get the running log of each message through the trace interface
#3221

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

'handleOk' was used before it was
defined.eslint@typescript-eslint/no-use-before-define

### What problem does this PR solve?

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

Fix: Fix text errors #3221

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

Suppress docker-compose warning like:

```bash
The "HF_ENDPOINT" variable is not set. Defaulting to a blank string.
The "MACOS" variable is not set. Defaulting to a blank string.
The "SANDBOX_EXECUTOR_MANAGER_IMAGE variable is not set. Defaulting to a blank string.
The "SANDBOX_EXECUTOR_MANAGER_PORT variable is not set. Defaulting to a blank string.
```

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)
- [x] Refactoring

### What problem does this PR solve?

https://github.com/infiniflow/ragflow/issues/8567

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

Use use-chunk-request.ts to replace chunk-hooks.ts; implement chunk
selectAll, enable, disable and other functions
[#3221](https://github.com/infiniflow/ragflow/issues/3221)

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

Fix typo process_duration.

### Type of change

- [x] Documentation Update
- [x] Refactoring

### What problem does this PR solve?

Previously, when testing knowledge retrieval and clicking the test
button, the component would trigger two API requests instead of one.
This led to redundant network calls and inconsistent results being
displayed.

Before:


![image](https://github.com/user-attachments/assets/530d9a97-04f7-4db4-8489-0a7b67c78194)

After:


![image](https://github.com/user-attachments/assets/d17caf18-a6b1-46bc-b077-d81de0a73818)


### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

- Ensure consistent Minio deployment by pinning the image to a specific
release version (RELEASE.2025-06-13T11-33-47Z) for stability and
reproducibility.
- #8672

### Type of change

- [x] Refactoring

### What problem does this PR solve?

Feat: Support uploading files when running agent #3221

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

fix: retry embedding with Qwen family models when limits temporarily
reached.

APIs of Qwen family models are limited by calling rates. When reached,
the "output" attribute of the "resp" will be None, and in turn cause
TypeError when trying to retrieve "embeddings". Since these limits are
almost temporary, I have added a simple retry mechanism to avoid it.
Besides, if retry_max reached, the error can be early raised, instead of
hidden behind "TypeError".

### What problem does this PR solve?

Sometimes Qwen blocks calling due to rate limits, but it will cause the
whole parsing procedure stops when creating knowledge base. In this
situation, resp["output"] will be None, and resp["output"]["embeddings"]
will cause TypeError. Since the limits are temporary, I apply a simple
retry mechanism to solve it.

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

---------

Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>

Fix the case where pages variable might be None

### What problem does this PR solve?


### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

#8669

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?
1.The old base image lost the curl command, and an updated image was
used to fix this issue (the service has been tested in the new version)
2.Add Health Check


### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

Fix a small typo in count of used fragments.

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

---------

Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>

### What problem does this PR solve?

Secure canvas access.

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

Fix: Wrong Citation Display #8594 #8474

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?
fix: Create a new message component to replace the antd message
component, create a new Spin component to replace the antd Spin
component, optimize the original paging component style, and optimize
the chunk result page[
#3221](https://github.com/infiniflow/ragflow/issues/3221)

### Type of change

- [X] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

Refactor prompts into markdown-style structure using Jinja2.

### Type of change

- [x] Refactoring

### What problem does this PR solve?

Optimized the style of the dataset configuration page and added the
logic of cancelling submission
[#3221](https://github.com/infiniflow/ragflow/issues/3221)

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?
1.Optimize Redis Health Check

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

Resolves ambiguity and potential MITM attacks by using official channel
for chromedriver-linux in download_deps.py

### Type of change

- [x] Performance Improvement

### What problem does this PR solve?

https://github.com/infiniflow/ragflow/issues/8656

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

Fix: Fixed the issue where the debug form Switch component had no
default value #3221

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

Support automatic LLMs registration.

### Type of change

- [x] Refactoring

### What problem does this PR solve?

Fix: Fixed the issue of retrieval operator text overlapping #3221

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

_Briefly describe what this PR aims to solve. Include background context
that will help reviewers understand the purpose of the PR._

### Type of change

- [ ] Bug Fix (non-breaking change which fixes an issue)
- [ ] New Feature (non-breaking change which adds functionality)
- [ ] Documentation Update
- [ ] Refactoring
- [ ] Performance Improvement
- [ ] Other (please describe):

### What problem does this PR solve?

Feat: Edit the output data of the code operator #3221

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

### What problem does this PR solve?

Feat: Display the iteration operator toolbar #3221
### Type of change


- [x] New Feature (non-breaking change which adds functionality)

### What problem does this PR solve?

Optimize the style and logic of the profile [#3221
](https://github.com/infiniflow/ragflow/issues/3221)

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

Feat: Combine the output logs of the same operator together #3221

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

### What problem does this PR solve?

Add MCP server test endpoint.

### Type of change

- [x] New Feature (non-breaking change which adds functionality)