Add HTTP/HTTPS clone URL parsing support

[Boomatang]

Closes #85

The URL parser now supports http:// and https:// clone URLs in addition to the existing SSH (git@ and ssh://git@) formats. The presence of an @ symbol is used to distinguish SSH from HTTP URLs, then protocol-appropriate delimiters handle the rest of the parsing.

The .git suffix detection was also improved by using findLast instead of find, correctly handling project names that contain .git (e.g., .github).

Acceptance Criteria

The issue requires HTTP clone support that works for both GitHub and Codeberg repos.

• GitHub: Tested with https://github.com/Boomatang/git-grab.git -- correctly parses site (github.com), owner (Boomatang), and name (git-grab).
• Codeberg: Tested with http://codeberg.org/boomatang/boomatang.git -- correctly parses site (codeberg.org), owner (boomatang), and name (boomatang).
• All existing SSH-based tests continue to pass, confirming no regressions.

Test Plan

• Added test for GitHub HTTPS URL parsing
• Added test for Codeberg HTTP URL parsing
• Added test for SSH URL with a short domain (gogs.io)
• Added test for project names containing .git (.github.git)
• All existing tests pass