Fixes#4347 - Crew streaming chunks were missing task metadata (task_id/task_name empty).
The issue was in _create_stream_chunk() which only used current_task_info for
task_name and task_id, ignoring the values from the LLMStreamChunkEvent. This
is inconsistent with how agent_role and agent_id were handled (preferring event
values).
The fix updates _create_stream_chunk() to use event.task_name and event.task_id
when available, falling back to current_task_info values otherwise.
Added test to verify streaming chunks contain task metadata from events.
Co-Authored-By: João <joao@crewai.com>
41ec7f6ce0