Implement sanic-hmr: Hot Module Reloading wrapper CLI for Sanic#13

Draft

Copilot wants to merge 3 commits intoreadmefrom

copilot/fix-1dfed7f4-45a9-4a59-90db-3de912b0b62d

Commits on Aug 4, 2025

Commits on Aug 5, 2025

Fix lint errors
CNSeniorious000
committed