### What problem does this PR solve?

Configure test case priorities to reduce CI execution time

### Type of change

- [x] Test cases update

### What problem does this PR solve?

Optimize dataset validation and add function docs

### Type of change

- [x] Refactoring

### What problem does this PR solve?

change create dataset delimiter default value to r'\n'

### Type of change

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

### What problem does this PR solve?

Remove unnecessary parameter restrictions in dataset creation API

### Type of change

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

### What problem does this PR solve?

Deprecate get_dataset_id_and_document_id fixture, use add_document
instead

### Type of change

- [x] Update test cases

### What problem does this PR solve?

This PR introduces Pydantic-based validation for the create dataset HTTP
API, improving code clarity and robustness. Key changes include:
1. Pydantic Validation
2. ​​Error Handling
3. Test Updates
4. Documentation

### Type of change

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

### What problem does this PR solve?


### Type of change

- [x] Refactoring

### What problem does this PR solve?

The knowledge_graph chunk method is deprecated and should no longer be
used. #7184.

### Type of change

- [x] Refactoring

### What problem does this PR solve?

Fix retrieval testing wrong pagination. #7171 

### 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?

cover [Delete chat assistant's
sessions](https://ragflow.io/docs/dev/http_api_reference#delete-chat-assistants-sessions)
endpoints

### Type of change

- [x] Add test cases

### What problem does this PR solve?

cover [Update chat assistant's
sessions](https://ragflow.io/docs/dev/http_api_reference#update-chat-assistants-session)
endpoints

### Type of change

- [x] Update test cases

### What problem does this PR solve?

PR #6906 ISSUE #6875

### Type of change

- [ ] Update test cases

### What problem does this PR solve?

cover [List chat assistant's
sessions](https://ragflow.io/docs/dev/http_api_reference#list-chat-assistants-sessions)
endpoints

### Type of change

- [x] Update test cases

### What problem does this PR solve?

PR #6906

### Type of change

- [x] Update test cases

### What problem does this PR solve?

#6875

### Type of change

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

### What problem does this PR solve?

PR #6888 ISSUE #6876

### Type of change

- [x] Update test case

### What problem does this PR solve?

cover [create session with chat
assistant](https://ragflow.io/docs/dev/http_api_reference#create-session-with-chat-assistant)
endpoints

### Type of change

- [x] add test cases

### What problem does this PR solve?

cover [delete chat
assistants](https://ragflow.io/docs/dev/http_api_reference#delete-chat-assistants)
endpoints

### Type of change

- [x] add test cases

### What problem does this PR solve?

#6850 

### Type of change

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

### What problem does this PR solve?

cover [update chat
assistant](https://ragflow.io/docs/v0.17.2/http_api_reference#update-chat-assistant)
endpoints

### Type of change

- [x] add test cases

### What problem does this PR solve?

update test case for PR #6800 issue #6539

### Type of change

- [x] update test cases

### What problem does this PR solve?

cover [list chat
assistant](https://ragflow.io/docs/v0.17.2/http_api_reference#list-chat-assistants)
endpoints

### Type of change

- [x] add test cases

### What problem does this PR solve?

Update test cases for PR #6643 issue #6607

### Type of change

- [x] update test cases

…gic to return the correct deletion message. Add handling for empty
arrays to ensure no errors occur during the deletion operation. Update
the test cases to verify the new logic.

### What problem does this PR solve?

fix this bug：https://github.com/infiniflow/ragflow/issues/6607

### Type of change

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

---------

Co-authored-by: wenju.li <wenju.li@deepctr.cn>

### What problem does this PR solve?

cover [create chat
assistant](https://ragflow.io/docs/v0.17.2/http_api_reference#create-chat-assistant)
endpoints

### Type of change

- [x] add test cases

### What problem does this PR solve?

Skip test case for PR #6443

### Type of change

- [x] update test cases

### What problem does this PR solve?

 Refactor test fixtures and test cases

### Type of change

- [ ] Refactoring test cases

### What problem does this PR solve?

### Type of change

- [x] Refactoring
- [x] Performance Improvement

### What problem does this PR solve?

cover [retrieval
chunk](https://ragflow.io/docs/v0.17.2/http_api_reference#retrieve-chunks)
endpoints

### Type of change

- [x]  add test cases

### What problem does this PR solve?

#6611

### 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

- [x] add test cases

### What problem does this PR solve?

PR #6405 #6504 #6538

### Type of change

- [x] update test cases

### What problem does this PR solve?

cover [update
chunk](https://ragflow.io/docs/v0.17.2/http_api_reference#update-chunk)
endpoints

### Type of change

- [x] add test cases

### What problem does this PR solve?

cover [list
chunks](https://ragflow.io/docs/v0.17.2/http_api_reference#list-chunks)
endpoints

### Type of change

- [x] update test cases

### What problem does this PR solve?

Add list chunk checkpoint for the add chunk API

### Type of change

- [x] update test cases

### 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

- [x] update test cases

### What problem does this PR solve?

Update test case for #6081

### Type of change

- [x] Update test case

### What problem does this PR solve?

PR #6194 #6259 #6376

### Type of change

- [x] Update test cases

### What problem does this PR solve?

cover [add
chunk](https://ragflow.io/docs/v0.17.2/http_api_reference#add-chunk)
endpoints

### Type of change

- [x] Add test cases

- Fix incorrect progress check condition that prevented re-parsing of
completed documents
- Allow parsing for documents with progress 0.0 (not started) or 1.0
(completed)
- Only block parsing for documents currently in progress (0.0 < progress
< 1.0)

Close #6312

---------

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

### What problem does this PR solve?

 Skip unstable 'stop parse documents' test cases

### Type of change

- [x] update test cases

### What problem does this PR solve?

cover [stop parse
documents](https://ragflow.io/docs/dev/http_api_reference#stop-parsing-documents)
endpoints

### Type of change

- [x] Add test cases

### What problem does this PR solve?

#6234

### Type of change

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

### What problem does this PR solve?

#6229

### Type of change

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

### What problem does this PR solve?

Fix #5719 
Add data type validation for parser_config

### Type of change

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

### What problem does this PR solve?

cover [parse
documents](https://ragflow.io/docs/dev/http_api_reference#parse-documents)
endpoints

### Type of change

- [x] add test cases

### What problem does this PR solve?

#6189

### Type of change

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

### What problem does this PR solve?

#6178

### Type of change

- [x] Documentation Update

### What problem does this PR solve?

cover [delete
documents](https://ragflow.io/docs/dev/http_api_reference#delete-documents)
endpoints

### Type of change

- [x] add test cases

### What problem does this PR solve?

fix check point per pr #6144 

### Type of change

- [x] update test case