* wip: first pass content strings
* 📦 chore: update @langchain/core to v0.3.62 for data-provider dev dep.
* 📦 chore: bump @langchain/core to v0.3.62 for api dep.
* 📦 chore: move @langchain/core to peerDependencies in package.json and package-lock.json
* fix: update formatContentStrings to create HumanMessage directly from formatted content
* chore: import order