### What problem does this PR solve?

Reuse loaded modules if possible

### Type of change

- [x] Refactoring

### What problem does this PR solve?

Feat: Add RAGFlowSelect component #3221

### Type of change


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

### What problem does this PR solve?

#5241

### 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?

#5201

### Type of change

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

### What problem does this PR solve?
Feat: Chat without KB. #5216

### Type of change


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

### What problem does this PR solve?

#5216

### Type of change

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

add non-stream mode support to session.ask function

### What problem does this PR solve?

same as title, I do not know why the stream=False is not work on the
server side also, when stream=False, the response in the
session._ask_chat is a fully connnected SSE string.

This is a quick fix on the sdk side to make the response format align
with API docs

### Type of change

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

### What problem does this PR solve?

#5173

### Type of change

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

### What problem does this PR solve?

Feat: Add AgentTemplates component. #3221

### Type of change


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

### What problem does this PR solve?

Optimized Recognizer.sort_X_firstly and Recognizer.sort_Y_firstly

### Type of change

- [x] Performance Improvement

### What problem does this PR solve?

Feat: Add SearchPage component. #3221

### Type of change


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

### What problem does this PR solve?

Feat: Add agent page. #3221

### Type of change


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

### What problem does this PR solve?

Feat: Add reasoning item to chat configuration modal #5173

### Type of change


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

### What problem does this PR solve?

#5152

### Type of change

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

Modify embedding model ID comparison to remove vendor suffixes, ensuring
consistent model identification when working with multiple knowledge
bases. This change affects dialog creation, chat operations, and
document retrieval test functions.

### What problem does this PR solve?

resolve this bug: https://github.com/infiniflow/ragflow/issues/5166

### 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?

Feat: Show formulas when answering, show reference labels in style,
remove cursor flashing effect. #5173

### Type of change


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

### What problem does this PR solve?

Right now we cannot embed a chat in website when it has variables in the
begin component.
This PR tries to read the variables values from the query string via a
data_ prefixed variable.

#5016 

### Type of change

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

---------

Co-authored-by: gstrat88 <gstrat@innews.gr>

### What problem does this PR solve?

just resolve issue： [Improve message input handling with Shift+Enter
support](https://github.com/infiniflow/ragflow/issues/5116)
### Type of change

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

---------

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

### What problem does this PR solve?

Feat: Add insert variable icon in the header of prompt editor. #4764

### Type of change


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

### What problem does this PR solve?


Docs: Add note about docker volume deletion in README files
refer to this question:
https://github.com/infiniflow/ragflow/issues/5132
### Type of change

- [x] Documentation Update

---------

Co-authored-by: wenju.li <wenju.li@deepctr.cn>
Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>
Co-authored-by: writinwaters <93570324+writinwaters@users.noreply.github.com>

### What problem does this PR solve?

Feat: Support preview of HTML files #5096
### Type of change


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

### What problem does this PR solve?

Feat: Allow the Rewrite operator to connect to the Generate operator
#1739

### Type of change


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

### What problem does this PR solve?

#5107

### Type of change

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

### What problem does this PR solve?

add support for update document meta data through  api
### Type of change

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

Co-authored-by: wenju.li <wenju.li@deepctr.cn>
Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>

…o that all services (including the es and infinity containers) can be
started correctly, and resolve the Failed to resolve 'es01' #4875

### What problem does this PR solve?

https://github.com/infiniflow/ragflow/issues/4875

### Type of change

- [x] Documentation Update

### What problem does this PR solve?

API options like `stream` was ignored when no session_id was provided.

This PR fixes the issue.

Test command and expected result:
```
curl  --request POST \
     --url http://:9222/api/v1/chats/2f2e1d30ee6111efafe211749b004925/completions \
     --header 'Content-Type: application/json' \
     --header 'Authorization: Bearer ragflow-xxx' \
     --data '{
   "question":"Who are you",
   "stream":false
}'
{"code":0,"data":"data:{\"code\": 0, \"message\": \"\", \"data\": {\"answer\": \"Hi! I'm your assistant, what can I do for you?\", \"reference\": {}, \"audio_binary\": null, \"id\": null, \"session_id\": \"82ceb0fcee7111efafe211749b004925\"}}\n\n"}

```



### Type of change

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

### What problem does this PR solve?

#5100

### 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?

This PR fixes an AttributeError in the all_tags method of the Dealer
class. Previously, the method incorrectly called
self.docStoreConn.indexExist instead of self.dataStore.indexExist. Since
self.docStoreConn was never set (and self.dataStore is already
initialized in init), this resulted in an error when attempting to check
if the index exists. This change ensures that the proper connector is
used for the index existence check, thereby resolving the issue._

### Type of change

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

### What problem does this PR solve?

Feat: Write the thinking style in the MarkdownContent layer #4930

### Type of change


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

### What problem does this PR solve?
Invoke component can be used to call third party services.
Tried GET/POST/PUT from web UI, and found PUT request failed like this:
(test api: api/v1/chats/<assistant_id>)
 ```
{"code":100,"data":null,"message":"AttributeError("'NoneType' object has
no attribute 'get'")"}
```

Root cause: Invoke PUT with a 'data=args' parameter, which is a form-encoded data, however the default content type setting of request header is application/json. The test api could not deal with such case.

Fix: use the 'json' parameter of reqeusts.put(), same as Invoke POST. Do not use the 'data' parameter.
Another way is to use 'data=json.dumps(args)'.

### 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?

Feat: Add ChunkedResultPanel #3221

### Type of change


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

### What problem does this PR solve?

Fix: Chunk problem tag content cannot be displayed completely. #5076

### Type of change

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

### What problem does this PR solve?

Feat: Extract the common parts of groupImage2TextOptions and
groupOptionsByModelType #5063

### Type of change


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

### What problem does this PR solve?

Feat: Add LanguageAbbreviation to simplify language resource files.
#5065

### Type of change

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

### What problem does this PR solve?

Fix: The max tokens defined by the tenant are not used (#4297) (#2817)


### 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?



### Type of change


- [x] Documentation Update

add option Embed into webpage

---------

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

### What problem does this PR solve?

#5061
#5067

### Type of change

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

### What problem does this PR solve?

The current design is not well-suited for multimodal models, as each
model can only be configured for a single purpose—either chat or
Img2txt. To work around this limitation, we use model aliases such as
gpt-4o-mini and gpt-4o-mini-2024-07-18.

To fix this, this PR allows specifying the Img2txt model by tag instead
of model_type.

### Type of change
- [x] Refactoring

update locale vi

### What problem does this PR solve?
Update the agent session API "POST /api/v1/agents/{agent_id}/sessions",
to support uploading files while create a new session:
- currently, the API only supports requesting with a json body. If user
wants to upload a doc or image when create session, like what is already
supported on the web client, we need to update the API.
- if upload an image, ragflow will call image2text, and a user_id is
needed for the image2text model. So we need to send user_id in the API
request. As form-data is needed to upload files, not json body, seems we
need to put the user_id in the url as an optional parameter (currently
user_id is an optional in json body).


### Type of change

- [x] Documentation Update
- [x] Other (please describe):

### What problem does this PR solve?

### Type of change

- [x] Refactoring

Fix: When starting the backend service from source code on Windows, the
"HTTP API" no longer returns 404.

### What problem does this PR solve?

Feat: Replace next-login-bg.svg #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?

### Type of change


- [x] Refactoring

### What problem does this PR solve?

Fix: Cannot distinguish between export and import icons #5025

### Type of change

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