Redesign crawler management around imported Python scripts instead of built-in crawler storage. Crawler scripts now declare CRAWLER_NAME, imports validate metadata, crawler IDs are generated internally, and deleted crawler scripts are detached without deleting already imported videos.
Add backend support for file and URL script imports, dry-run testing, metadata parsing, safer job paths, original filename preservation, and crawler listing that ignores detached script records. Remove the legacy built-in Spider91 script path flow and hidden Python/config JSON fields from the crawler API.
Rework the admin crawler page into an independent crawler console with script import, dry-run testing, status metrics, spider iconography, and simplified controls. Update docs, examples, installer checks, Docker/release packaging, and tests for the new protocol.
nianzhibai