Pass plugin paths as strings so HTTPS URLs are not mangled by pathlib.
Fix mixed tab/space indentation in ArchConfig.from_config that broke
imports. Harden plugin import (spec handling, failed-import cleanup),
and skip version comparison when version tuples are empty. Add tests
for URL handling and HTTP rejection.
Co-authored-by: Cursor <cursoragent@cursor.com>
hariomphulre