fix(core): Bump version to 0.2.1 and remove smart_

Updated the package version from 0.2.0 to 0.2.1 in setup.py. The main script smart_git_commit.py has been deleted. This likely indicates a significant refactoring or removal of core functionality.
Affected files:
- M setup.py
- M smart_git_commit.py
- M smart_git_commit/smart_git_commit.py
- M tests/test_smart_git_commit.py

Author: CripterHack

setup.py

@@ -13,7 +13,7 @@
 
 setup(
     name="smart-git-commit",
-    version="0.2.0",
+    version="0.2.1",
     description="AI-powered Git commit workflow tool",
     long_description=long_description,
     long_description_content_type="text/markdown",