chatlas 0.4.0

New features

• Added a ChatVertex() class to interact with Google Cloud's Vertex AI. (#50)
• Added .app(*, echo=) support. This allows for chatlas to change the echo behavior when running the Shiny app. (#31)

Improvements

• Migrated ChatGoogle()'s underlying python SDK from google-generative to google-genai. As a result, streaming tools are now working properly. (#50)

Bug fixes

• Fixed a bug where synchronous chat tools would not work properly when used in a _async() context. (#56)
• Fix broken Chat's Shiny app when .app(*, stream=True) by using async chat tools. (#31)
• Update formatting of exported markdown to use repr() instead of str() when exporting tool call results. (#30)