Look up file metadata by short codes via MCP.
Same flow over HTTP: GET /files/info
Batch lookup with comma-separated short codes (the public share id).
API key optional.
GET /files/info?file_code=… on the API.scanStatus. Poll GET /files/share/{shortId} before machine download.unlockRequired: true, call beecargo_get_download_url with unlockCode, unlockToken, or handoffToken. The share link alone is not enough to download.