fix: support non-GitHub repositories in --force url parsing

[codxbrexx]

Problem

This PR fixes a bug where the --force option crashes when passing non-GitHub repository URLs via --addrepo. It replaces the brittle, hardcoded split('com/') approach with native new URL() parsing to make suffix generation host-agnostic and robust against any valid repository URL (GitLab, self-hosted .local or .org, etc.).

Changes

1. Refactored src/force.ts to use new URL() for parsing paths.
2. Extracted URL extraction logic into the testable pure function getSuffixFromUrl.
3. Created unit tests in src/test/force.spec.ts using Mocha to ensure any given URL is handled properly, and invalid URLs don't crash the deploy process.

Resolves

Resolves #210

Testing