### What problem does this PR solve?
Feat: Add user registration toggle feature. Added a user registration
toggle REGISTER_ENABLED in the settings and .env config file. The user
creation interface now checks the state of this toggle to control the
enabling and disabling of the user registration feature.
the front-end implementation is done, the registration button does not
appear if registration is not allowed. I did the actual tests on my
local server and it worked smoothly.
### 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>
### What problem does this PR solve?
Add history version save
- Allows users to view and download agent files by version revision
history

_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)
- [x] New Feature (non-breaking change which adds functionality)
- [ ] Documentation Update
- [ ] Refactoring
- [ ] Performance Improvement
- [ ] Other (please describe):
---------
Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>
### What problem does this PR solve?
Feat: Change “Document parser” to "PDF parser" #6072
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Add Support for german language
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: When selecting a reordering model, give a prompt that it takes too
long. #5834
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Put the configuration of different parsing methods into separate
components. #5467
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Fix lots of typos.
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
---------
Signed-off-by: Jin Hai <haijin.chn@gmail.com>
### What problem does this PR solve?
Feat: If the user is not logged in, jump to the login page by
refreshing.
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
```
Invoke agent
To be able to interact dynamically with the API, there is a customizable Data Type JSON or FormData, the default is JSON
```
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
---------
Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>
### What problem does this PR solve?
Feat: Add Tavily Api Key to chat configuration modal. #5198
### 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?
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?
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?
Feat: Supports docx in the MANUAL chunk method and docx, markdown, and
PDF in the Q&A chunk method #3957
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Fix Portuguese (Brazil) translation
Adding portuguese to Knowledge adding settings.
### Type of change
- [X] Bug Fix (non-breaking change which fixes an issue)
- [X] New Feature (non-breaking change which adds functionality)
---------
Co-authored-by: Yingfeng <yingfeng.zhang@gmail.com>
### What problem does this PR solve?
Rename from 'Diagonal' to 'Forward slash'
Rename from 'Minus' to 'Dash'
issue: #4655
### Type of change
- [x] Refactoring
---------
Signed-off-by: Jin Hai <haijin.chn@gmail.com>
### What problem does this PR solve?
Template conversion adds Jinjia2 syntax support
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
---------
Co-authored-by: wangrui <wangrui@haima.me>
Co-authored-by: Yingfeng <yingfeng.zhang@gmail.com>
Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>
### What problem does this PR solve?
Feat: Add keyword item to AssistantSetting #4543
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Display the knowledge graph on the knowledge base page #4543
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Support for Portuguese language #4557
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Add language Portugese from Brazil
### Type of change
- [X] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Fix: Translate the operator options of the Switch operator #1739
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Update description
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
- [x] Documentation Update
Signed-off-by: Jin Hai <haijin.chn@gmail.com>
### What problem does this PR solve?
Feat: Metadata in documents for improve the prompt #3690
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Fix: Modify the text of the category operator form #4412
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)