Add virtual baseconf support for external data processors so reindex can discover and index them alongside regular src-based configurations, and update docs to use generic examples without workspace-specific names.
Конфиг утилиты переведён на YAML; default_baseconfs для reindex без -b;
автопоиск config.local.yml/.yaml/.json; обобщённая документация.
Co-authored-by: Cursor <cursoragent@cursor.com>