Previously, parseSource() hardcoded 'https://' when building cloneUrl,
forcing http:// Git URLs (e.g., internal LAN hosts) to upgrade to https.
This broke cloning for self-hosted Git servers that only serve over HTTP.
- Capture the protocol from the regex match instead of discarding it
- Update JSDoc and inline comments to document HTTP support
- Update install-custom-modules docs (EN, ZH, VN) to list HTTP URL type
Fixes the --custom-source flag for http:// addresses.
e597645d3b