* add react-flow
* update tutorial, some ui improvement for agent thread layout
* v1 for interactive viz for agent state
* add Ui visualization of message based transitions
* minor updates
* fix node edges, support visualization of self loops
* improve edges and layout, add support for selector group chat prompt
* minor ui tweaks
* add skeleton worflow manager
* add test notebook
* update test nb
* add sample team spec
* refactor requirements to agentchat and ext
* add base provider to return agentchat agents from json spec
* initial api refactor, update dbmanager
* api refactor
* refactor tests
* ags api tutorial update
* ui refactor
* general refactor
* minor refactor updates
* backend api refaactor
* ui refactor and update
* implement v1 for streaming connection with ui updates
* backend refactor
* ui refactor
* minor ui tweak
* minor refactor and tweaks
* general refactor
* update tests
* sync uv.lock with main
* uv lock update
