GitLab

- limit default changed to -1

i18n: redone and updated the entire pt br translation

Update Vietnamese translations

fix: socket.io client url

chore: Add HTTP-Referer and X-Title headers for OpenRouter

* fixes backend crash with IPv6 and some IPv4 setups
* instead of passing empty url, let socket.io set default url
  (defaults to window.location.host)

feat: Added environment variable to hide email and password sign in elements

feat: select model with arrow keys

chore(deps): bump the pip group across 2 directories with 2 updates

Bumps the pip group with 2 updates in the / directory: [pymysql](https://github.com/PyMySQL/PyMySQL) and [langchain-community](https://github.com/langchain-ai/langchain).
Bumps the pip group with 1 update in the /backend directory: [langchain-community](https://github.com/langchain-ai/langchain).


Updates `pymysql` from 1.1.0 to 1.1.1
- [Release notes](https://github.com/PyMySQL/PyMySQL/releases)
- [Changelog](https://github.com/PyMySQL/PyMySQL/blob/main/CHANGELOG.md)
- [Commits](https://github.com/PyMySQL/PyMySQL/compare/v1.1.0...v1.1.1)

Updates `langchain-community` from 0.2.0 to 0.2.9
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](https://github.com/langchain-ai/langchain/compare/langchain-community==0.2.0...langchain-community==0.2.9)

Updates `langchain-community` from 0.2.6 to 0.2.9
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](https://github.com/langchain-ai/langchain/compare/langchain-community==0.2.0...langchain-community==0.2.9

)

---
updated-dependencies:
- dependency-name: pymysql
  dependency-type: direct:production
  dependency-group: pip
- dependency-name: langchain-community
  dependency-type: direct:production
  dependency-group: pip
- dependency-name: langchain-community
  dependency-type: direct:production
  dependency-group: pip
...
Signed-off-by: dependabot[bot] <support@github.com>

perf: optimize query for chat list

chore(deps): bump google-generativeai from 0.5.4 to 0.7.2 in /backend

chore(deps): bump rapidocr-onnxruntime from 1.3.22 to 1.3.24 in /backend