* refactor: merge HistoryChatEngine and ContextChatEngine and use ChatHistory for all chat engines

* fix: add safeguard for tokensToSummarize

* refactor: unfold chat engines to own folder

* refactor: extract LLM types

* refactor: move multi-modal types to llm

* docs(changeset): Remove HistoryChatEngine and use ChatHistory for all chat engines

* dev: add debug launcher and don't lint generated code

---------

Co-authored-by: thucpn <thucsh2@gmail.com>

Releases:
  llamaindex@0.0.46
  create-llama@0.0.15

[skip ci]

This reverts commit 3c4347b2.

Releases:
  llamaindex@0.1.0
  create-llama@0.0.15

[skip ci]

Co-authored-by: Alex Yang <himself65@outlook.com>

Releases:
  create-llama@0.0.14
  llamaindex@0.0.45

[skip ci]

Ref: https://nodejs.org/docs/latest/api/crypto.html#cryptorandomuuidoptions

Releases:
  llamaindex@0.0.44

[skip ci]

Co-authored-by: Aarav Navani <38411399+oofmeister27@users.noreply.github.com>

Releases:
  create-llama@0.0.13

[skip ci]

Releases:
  llamaindex@0.0.43

[skip ci]