Is your feature request related to a problem? Please describe.
ElizaOS currently uses LangChain v0.3, which is now outdated. The latest release is LangChain v1, and the previous functionality with the same API has been moved to a separate package called langchain-classic. Since LangChain v0.3 and v1 are incompatible, we cannot easily upgrade the LangChain version in our SDK, as ElizaOS depends on the older v0.3 release.

Describe the solution you'd like
bumping langchain version to v1

Describe alternatives you've considered
migtration to langchain-classic

Additional context