Add dist/ and Python build artifacts to .gitignore

- Remove dist/ files from git tracking
- Build artifacts should not be versioned
- Can be regenerated with 'python -m build'

Author: thanhndv212

.gitignore

@@ -6,5 +6,10 @@ build/*
 cmake/*
 .vscode/*
 
+# Python packaging
+dist/
+*.egg-info/
+__pycache__/
+
 # Examples and models moved to separate repository
 # See: https://github.com/thanhndv212/figaroh-examples