chore: set real project URLs (SixToNineOG/simdiff)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: claude

pyproject.toml

@@ -21,8 +21,8 @@ classifiers = [
 dependencies = []
 
 [project.urls]
-Homepage = "https://github.com/USER/simdiff"
-Issues = "https://github.com/USER/simdiff/issues"
+Homepage = "https://github.com/SixToNineOG/simdiff"
+Issues = "https://github.com/SixToNineOG/simdiff/issues"
 
 [project.scripts]
 simdiff = "simdiff.cli:main"