### 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)

### What problem does this PR solve?



### Type of change

- [x] Documentation Update

### What problem does this PR solve?

Issue #8602

`parser_config.task_page_size` can be defaults to `None` when dataset is
created by API. This was not handled by the `task_executor.py` code thus
`page_size` could sometimes be `None` which will cause issue in line
351.

### Type of change

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

### What problem does this PR solve?

More robust MCP tool call conn.

### Type of change

- [x] Refactoring

### 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?

The following error occurred during local testing, which should be fixed
by configuring 'exist_ok=True'.

```log
set_progress(7461edc253), progress: -1, progress_msg: 21:41:41 Page(1~100000001): [ERROR][Errno 17] File exists: '/ragflow/tmp'
```

### Type of change

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

### What problem does this PR solve?

Update Chrome download URL in use_china_mirrors configuration


### Type of change

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

Co-authored-by: lqh <liqunhuan@foreveross.com>

### What problem does this PR solve?

Feat: Convert the arguments parameter of the code operator to a
dictionary #3221

### Type of change


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

### What problem does this PR solve?

Fix the config option name of the opendal table name and setting of
'max_allowed_packet'.

### Type of change

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

Signed-off-by: He Wang <wanghechn@qq.com>

### What problem does this PR solve?

This PR introduces Google Cloud Vision API integration to enhance image
understanding capabilities in the application. It addresses the need for
advanced image description and chat functionalities by implementing a
new `GoogleCV` class to handle API interactions and updating relevant
configurations. This enables users to leverage Google Cloud Vision for
image-to-text tasks, improving the application's ability to process and
interpret visual data.

### Type of change

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

### What problem does this PR solve?

### Type of change

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

### What problem does this PR solve?

Feat: Construct the to field of the classification operator when saving
data #3221

### Type of change


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

### What problem does this PR solve?

- Add comprehensive test suite for chunk operations including:
  - Test files for create, list, retrieve, update, and delete chunks
  - Authorization tests
  - Batch operations tests
- Update test configurations and common utilities
- Validate `important_kwd` and `question_kwd` fields are lists in
chunk_app.py
- Reorganize imports and clean up duplicate code

### Type of change

- [x] Add test cases

### What problem does this PR solve?

docx parse error.

![image](https://github.com/user-attachments/assets/efbe6d1b-10c8-415e-b693-a86f73e1ffa6)

### Type of change

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

### What problem does this PR solve?

Some docx parse with naive cause error. `block.style.name` in Function
`__get_nearest_title` will be None in some case.

### Type of change

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

Co-authored-by: wenxuan.zhang <wenxuan.zhang@chinacreator.com>

### What problem does this PR solve?

Fix: Fixed the issue that the global variables of the code operator
cannot be selected #3221

### Type of change


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

### What problem does this PR solve?

Feat: Fixed the issue where variables were not displayed in the switch
operator #3221

### Type of change


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

### What problem does this PR solve?

This PR addresses an incompatibility issue with the Google Chat API by
correcting the message content format in the `GoogleChat` class.
Previously, the content was directly assigned to the "parts" field,
which did not align with the API's expected format. This change ensures
that messages are properly formatted with a "text" key within a
dictionary, as required by the API.

### Type of change

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

### 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?

Feat: Add agent advanced settings form #3221

### Type of change


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

### What problem does this PR solve?

Fix: the output log is incorrect

### Type of change

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

Co-authored-by: liang <xiaofeng.liang@landstech.com.cn>

### What problem does this PR solve?

Add file management HTTP_API for operating files

### Type of change

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

### What problem does this PR solve?

This PR enables the `Form` component within the `GoogleModal` to
directly access and manipulate the form state by passing the form
instance from the parent component. This enhances form control and data
manipulation capabilities within the modal, improving the component's
functionality and integration with the parent form.

### Type of change

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

### What problem does this PR solve?
https://github.com/infiniflow/ragflow/issues/8556

### Type of change

- [x] Documentation Update

### What problem does this PR solve?

Change mcp_client module to rag/utils/conn.

### Type of change

- [x] Refactoring

### What problem does this PR solve?

Feat: In a dialog message, users can enter different types of data #3221

### Type of change


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

### What problem does this PR solve?

Switching threading.Lock() to asyncio.Lock(), since threading.Lock() is
blocking.

### Type of change

- [x] Performance Improvement

### What problem does this PR solve?

Feat: Fixed the issue that the top toolbar disappears when opening the
agent operator form #3221

### Type of change


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

### What problem does this PR solve?

#1853

### Type of change

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

### What problem does this PR solve?

Feat: Support GiteeAI model  #1853

### Type of change


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

### What problem does this PR solve?

Feat: Allow users to enter text in the middle of a chat #3221
### Type of change


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

### What problem does this PR solve?


### Type of change

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

### What problem does this PR solve?

#8538

### Type of change

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

### What problem does this PR solve?

Feat: Fixed the issue where the begin operator parameters could not be
submitted during debugging #3221

### Type of change


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

### What problem does this PR solve?
Feat: Display sub-agents in agent form #3221
### Type of change


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

### What problem does this PR solve?

Feat: Fixed the issue where the prompt menu content was hidden #3221

### Type of change


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

### 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?

Allow users to choose which MCP tools are enabled.

### Type of change

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

### What problem does this PR solve?
This PR addresses critical memory leaks in the task executor's image
processing pipeline. The current implementation fails to properly
dispose of PIL Image objects and BytesIO buffers during chunk
processing, leading to progressive memory accumulation that can cause
the task executor to consume excessive memory over time.

### Background context
- The `upload_to_minio` function processes images from document chunks
and converts them to JPEG format for storage.
- PIL Image objects hold significant memory resources that must be
explicitly closed to prevent memory leaks.
- BytesIO objects also consume memory and should be properly disposed of
after use.
- In high-throughput scenarios with many image-containing documents,
these memory leaks can lead to out-of-memory errors and degraded
performance.

### Specific issues fixed
- PIL Image objects were not being explicitly closed after processing.
- BytesIO buffers lacked proper cleanup in all code paths.
- Converted images (RGBA/P to RGB) were not disposing of the original
image object.
- Memory references to large image data were not being cleared promptly.

### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
- [x] Performance Improvement


### Changes made
- Added explicit `d["image"].close()` calls after image processing
operations.
- Implemented proper cleanup of converted images when changing formats
from RGBA/P to RGB.
- Enhanced BytesIO cleanup with `try/finally` blocks to ensure disposal
in all code paths.
- Added explicit `del d["image"]` to clear memory references after
processing.

This fix ensures stable memory usage during long-running document
processing tasks and prevents potential out-of-memory conditions in
production environments.

### What problem does this PR solve?

Remove useless logic in a loop for list_doc

### Type of change

- [x] Refactoring
- [x] Performance Improvement

### What problem does this PR solve?

improve the logic to check cancel

### Type of change

- [x] Refactoring

---------

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

### What problem does this PR solve?

https://github.com/infiniflow/ragflow/issues/8467
when add llm the llm_name will like "llm1___OpenAI-API"
f09ca8e795/api/apps/llm_app.py (L173)
so we should not use llm1 to query


### Type of change

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