CrewAI releases version 1.15.40 with embedding and state lookup changes

The release removes chromadb from the embedding function layer, adds exact historical state lookup by row id, and wires jsonl into RAG data type discovery. Standalone agents are now scaffolded as JSON by default. Bug fixes make after_llm_call hooks run on async calls and stop an agent whose apps CrewAI AMP cannot resolve. The release also adds backend record lifecycle and pagination tests, and updates an Arize agent evaluation guide link. The update is available from the project's GitHub releases page for users of the framework.