Add logging via Hatchet instrument

[yedidyakfir]

Summary

Add structured logging to Mageflow using Hatchet's instrumentation capabilities.

Background

Currently, logging is done manually via ctx.log() calls scattered throughout the codebase (e.g., in mageflow/swarm/workflows.py and mageflow/callbacks.py). Hatchet provides an instrumentation API that can provide more structured and comprehensive logging.

Requirements

• Set up Hatchet instrument/instrumentation for automatic logging
• Integrate with existing logging patterns
• Ensure logs are properly captured in Hatchet's dashboard

References

• Hatchet SDK instrumentation documentation
• Current logging locations: mageflow/callbacks.py, mageflow/swarm/workflows.py