fix: remove unused import and format code to keep main green

Author: CoderDeltaLAN

src/commit_guardian/__init__.py

@@ -1,5 +1,6 @@
 __all__ = ["ping", "__version__"]
 __version__ = "0.1.0"
 
+
 def ping() -> str:
     return "pong"

src/commit_guardian/cli.py

@@ -1,8 +1,8 @@
 from __future__ import annotations
-import sys
 import click
 from . import __version__, ping
 
+
 @click.command()
 @click.option("--version", is_flag=True, help="Show version and exit.")
 def main(version: bool) -> None:
@@ -12,5 +12,6 @@ def main(version: bool) -> None:
     click.echo(ping())
     raise SystemExit(0)
 
+
 if __name__ == "__main__":
     main()

tests/test_sanity.py

@@ -1,4 +1,5 @@
 import commit_guardian as cg
 
+
 def test_ping() -> None:
     assert cg.ping() == "pong"