Jaankoppe-llama-index

New Features
- `OpenAIFineTuningHandler` for collecting LLM inputs/outputs for OpenAI fine tuning (7367)

Bug Fixes / Nits
- Add support for `claude-instant-1.2` (7369)

New Features
- Support fine-tuned OpenAI models (7364)
- Added support for Cassandra vector store (6784)
- Support pydantic fields in tool functions (7348)

Bug Fixes / Nits
- Fix inifinite looping with forced function call in `OpenAIAgent` (7363)

New Features
- auto vs. recursive retriever notebook (7353)
- Reader and Vector Store for BagelDB with example notebooks (7311)

Bug Fixes / Nits
- Use service context for intermediate index in retry source query engine (7341)
- temp fix for prompt helper + chat models (7350)
- Properly skip unit-tests when packages not installed (7351)

New Features
- Added FireStore docstore/index store support (7305)
- add recursive agent notebook (7330)

Bug Fixes / Nits
- Fix Azure pydantic error (7329)
- fix callback trace ids (make them a context var) (7331)

New Features
- Awadb Vector Store (7291)

Bug Fixes / Nits
- Fix bug in OpenAI llm temperature type

New Features
- Expose a system prompt/query wrapper prompt in the service context for open-source LLMs (6647)
- Changed default MyScale index format to `MSTG` (7288)
- Added tracing to chat engines/agents (7304)
- move LLM and embeddings to pydantic (7289)

Bug Fixes / Nits
- Fix sentence splitter bug (7303)
- Fix sentence splitter infinite loop (7295)