chore: Clean up repository structure

- Move test/debug scripts to tests/manual/ (gitignored)
- Update .gitignore to exclude manual test files
- Remove clutter from root directory
- Prepare for community release

Author: mdlmarkham

.gitignore

@@ -49,6 +49,9 @@ coverage.xml
 .pytest_cache/
 cover/
 
+# Manual test scripts (kept locally only)
+tests/manual/
+
 # Translations
 *.mo
 *.pot