Function normalizeRepoUrlForClone

src/node/services/projectService.ts:209–239

* Normalize a repo URL so git clone receives a valid remote. * Expands "owner/repo" shorthand to either SSH or HTTPS based on likely local credentials. * All other inputs (HTTPS URLs, SSH URLs, SCP-style, etc.) pass through unchanged.

(repoUrl: string)

 * All other inputs (HTTPS URLs, SSH URLs, SCP-style, etc.) pass through unchanged.
 */
function normalizeRepoUrlForClone(repoUrl: string): string {
  const trimmedRepoUrl = repoUrl.trim();
  const shorthandCandidate = trimmedRepoUrl.replace(/[\\/]+$/, "");

  // owner/repo shorthand: exactly two non-empty segments separated by a single slash,
  // where the first segment looks like a GitHub username (letters, digits, hyphens).
  // Excludes local paths like ../repo, ./foo, foo/bar/baz, and absolute paths.
  // Note: bare `foo/bar` style local relative paths are intentionally treated as GitHub
  // shorthand here because this function is only called from the Clone dialog, which is
  // specifically for remote repos. Users cloning local repos should use the "Local folder" tab.
  if (GITHUB_SHORTHAND_PATTERN.test(shorthandCandidate)) {
    // Strip existing .git suffix before appending to avoid double .git (e.g. owner/repo.git → owner/repo.git.git)
    const withoutGitSuffix = shorthandCandidate.replace(/\.git$/i, "");

    // Prefer SSH for shorthand only when the current session has an active SSH agent.
    // This avoids assuming GitHub access from unrelated key files on disk.
    if (hasLikelySshCredentials()) {
      return `git@github.com:${withoutGitSuffix}.git`;
    }

    return `https://github.com/${withoutGitSuffix}.git`;
  }

  // Strip query strings and fragments only from URL-like inputs (protocol:// or git@),
  // not from local paths where # and ? may be valid filename characters.
  if (/^[a-zA-Z][a-zA-Z0-9+.-]*:\/\//.test(trimmedRepoUrl) || trimmedRepoUrl.startsWith("git@")) {
    return trimmedRepoUrl.replace(/[?#].*$/, "");
  }

  return trimmedRepoUrl;
}

function parseScpStyleSshUrl(url: string): { host: string } | undefined {
  const trimmedUrl = url.trim();