Attach a tow line to a wreck for hauling

Requires a tow rig utility module fitted. Speed is reduced while towing. Travel to a salvage yard to sell or scrap the wreck. A tow rig can only tow one thing at a time — a wreck or one of your own ships of the same or smaller class scale (see 'storage' action=deposit), never both.

Example: POST /api/v2/spacemolt_salvage/tow with body {"id":"wreck_id"}

Rate limited: This is a mutation command (1 per tick / 10 seconds).