Concurrent streaming runs registered handlers on the singleton event bus
that received all LLMStreamChunkEvent emissions, causing chunks to fan
out across unrelated queues. Introduces a ContextVar-based stream scope
ID so each handler only accepts events from its own execution context.
Closes#5376
When monitoring LLM events, consumers need to know which events belong
to the same API call. Before this change, there was no way to correlate
LLMCallStartedEvent, LLMStreamChunkEvent, and LLMCallCompletedEvent
belonging to the same request.
- add input_files parameter to Crew.kickoff(), Flow.kickoff(), Task, and Agent.kickoff()
- add provider-specific file uploaders for OpenAI, Anthropic, Gemini, and Bedrock
- add file type detection, constraint validation, and automatic format conversion
- add URL file source support for multimodal content
- add streaming uploads for large files
- add prompt caching support for Anthropic
- add OpenAI Responses API support
