- Add missing variables to Bookmann environment:
- library_id (snake_case variant)
- media_item_id (snake_case variant)
- job_id for scan status tracking
- baseUrl (camelCase variant for compatibility)
- refreshToken to secret vars
- Remove invalid vars sections from request files
- Variables should be referenced directly from environment
- Vars sections are for request-specific overrides, not env references
- All variables now properly defined and accessible