Function parseNumstat

src/codeScan/git/diffProcessor.ts:121–142

* Parse git diff --numstat output * Format: added\tremoved\tpath

(numstatOutput: string)

 * Format: added\tremoved\tpath
 */
function parseNumstat(numstatOutput: string): Map<string, NumstatEntry> {
  const map = new Map<string, NumstatEntry>();

  for (const line of numstatOutput.split('\n')) {
    if (!line.trim()) {
      continue;
    }

    const parts = line.split('\t');
    if (parts.length < 3) {
      continue;
    }

    const added = parts[0] === '-' ? 0 : Number.parseInt(parts[0], 10);
    const removed = parts[1] === '-' ? 0 : Number.parseInt(parts[1], 10);
    const path = parts[2];

    map.set(path, { linesAdded: added, linesRemoved: removed });
  }

  return map;
}

async function discoverChangedFiles(
  repoPath: string,