Replace print() calls in agents.py with structured logging (Fixes #75)

[pragati-0208]

Summary

Replaced print() statements in agents.py with Python's logging module to provide structured and configurable logging.

Changes

• Added logger initialization:
  logger = logging.getLogger("agents")

• Replaced all print() calls with appropriate logging levels:

  • logger.info() for normal workflow messages
  • logger.error() for error conditions
  • logger.exception() for exception tracebacks

[pragati-0208]

Hi! I have resolved the merge conflicts and updated the PR. Please let me know if any further changes are needed.