Use Click for console output and fix CLI entrypoint

[Koded0214h]

Summary

Switch terminal output to click.echo for better Unicode/Windows behavior, and fix the module
entrypoint so python -m devklean calls the actual main() function.

Changes

• Replaced print() calls in the console layer with click.echo()
• Updated the SIGINT abort path to use Click output
• Added click as a runtime dependency
• Fixed src/devklean/__main__.py to import main from devklean.cli.main
• Made package __init__.py imports lazy to avoid pulling in send2trash during unrelated
  imports
• Updated the Windows guard test to work in subprocesses with PYTHONPATH=src

Verification

• pytest tests/test_console.py tests/test_text_renderer.py tests/test_cli_parser.py tests/ test_windows_guard.py -q
• Result: 28 passed

Notes

This is a UX-focused change for terminal reliability. It does not alter deletion behavior.

[Koded0214h]

solution to #11

[smurftyy]

Good work, all checks pass. Merging this one.