Interface GitChanges

src/extraction/index.ts:1072–1076

* Result of git-based change detection. * Returns null when git is unavailable (non-git project or command failure), * signaling the caller to fall back to full filesystem scan.

 * signaling the caller to fall back to full filesystem scan.
 */
interface GitChanges {
  modified: string[];  // M, MM, AM — files to re-hash + re-index
  added: string[];     // ?? — new untracked files to index
  deleted: string[];   // D — files to remove from DB
}

/**
 * Use `git status` to detect changed files instead of scanning every file.