- Add crew-level start/finish logs: [Crew] Starting/Completed
- Add per-task start/completion logs: [Agent: X] Starting/Task complete
- Add handoff logs between agents: passing to / Received context from
- Support custom crew name in logs
- Use task.name when available, fallback to description
- Add 7 unit tests covering all new verbose tracing behavior
Co-Authored-By: João <joao@crewai.com>