Langchain

What's Changed
* docs: Mendable v79 new features + bug fixes by nickscamara in https://github.com/hwchase17/langchainjs/pull/666
* Release by nfcampos in https://github.com/hwchase17/langchainjs/pull/671
* Add implementation of Prisma vectorstore by dqbd in https://github.com/hwchase17/langchainjs/pull/440
* Configure lint-staged precommit on all workspaces by tyleralves in https://github.com/hwchase17/langchainjs/pull/657
* Add Motörhead memory adapter by Czechh in https://github.com/hwchase17/langchainjs/pull/598
* Update queue type to avoid build error by ashburnham in https://github.com/hwchase17/langchainjs/pull/673
* Use signal option in axios adapter if passed in by nfcampos in https://github.com/hwchase17/langchainjs/pull/677

New Contributors
* tyleralves made their first contribution in https://github.com/hwchase17/langchainjs/pull/657
* Czechh made their first contribution in https://github.com/hwchase17/langchainjs/pull/598
* ashburnham made their first contribution in https://github.com/hwchase17/langchainjs/pull/673

**Full Changelog**: https://github.com/hwchase17/langchainjs/compare/0.0.50...0.0.51

What's Changed
* Ensure release command runs in a release branch by nfcampos in https://github.com/hwchase17/langchainjs/pull/647
* Update guide-chat.mdx by paddingme in https://github.com/hwchase17/langchainjs/pull/648
* fix: typo by chewam in https://github.com/hwchase17/langchainjs/pull/649
* docs: adds ecosystem docs for `UnstructuredLoader` by MthwRobinson in https://github.com/hwchase17/langchainjs/pull/653
* Update url in UnstructuredLoader example by awalker4 in https://github.com/hwchase17/langchainjs/pull/650
* Add missing cache entrypoint by nfcampos in https://github.com/hwchase17/langchainjs/pull/664
* Remove instanceof checks to support deno on supabase by nfcampos in https://github.com/hwchase17/langchainjs/pull/667

New Contributors
* ezg made their first contribution in https://github.com/hwchase17/langchainjs/pull/614
* ChhikaraBRUH made their first contribution in https://github.com/hwchase17/langchainjs/pull/637
* ZYJLiu made their first contribution in https://github.com/hwchase17/langchainjs/pull/620
* paddingme made their first contribution in https://github.com/hwchase17/langchainjs/pull/648
* chewam made their first contribution in https://github.com/hwchase17/langchainjs/pull/649
* awalker4 made their first contribution in https://github.com/hwchase17/langchainjs/pull/650

**Full Changelog**: https://github.com/hwchase17/langchainjs/compare/0.0.49...0.0.50

* Add MetalRetriever (613) (047691f)
* Remove double assignment (642) (eaa7e78)
* Update replicate to version using fetch, which works outside of node (641) (ba4a776)
* fix: add this.stop = input.stop to LLMSingleActionAgent constructor (620) (2feb3b5)
* Add chains to test-exports (639) (813e99a)
* Better prettier output in CI (638) (72dfe6c)
* Merge pull request 626 from hwchase17/nc/cjs-build (d221617)
* Merge pull request 637 from ChhikaraBRUH/main (a5eeaff)
* adding Supabase default assumptions (6a3b21f)
* Update example import path (010fd18)
* Update docs (1eea9e2)
* Handle zapier errors (627) (22e2b73)
* Only unit tests (08084ca)
* Ensure all test scripts run in CI (90a774f)
* Merge pull request 630 from hwchase17/nc/process-env-guard (7d7e79c)
* Fix side effect (625475f)
* Add a guard on usage of process.env (4af2974)
* Merge pull request 622 from hwchase17/nc/custom-pdfjs (5e6f8dc)
* Allow passing a custom pdfjs build (432567b)