Persist the username and email returned by the Debrid-Link account endpoint as distinct identity fields and project them into their matching account-table columns. Migrate cached legacy statuses that stored a username in the email field, preserve both fields through renderer validation and sanitization, and cover API responses with and without an email address.
Restore the v2.0.35 renderer settings validation behavior that was lost when the download path returned to the v2.0.28 baseline. Ignore undefined optional values at top level and inside structured settings while continuing to reject unknown concrete keys and invalid types. Cover a full settings save containing a Real-Debrid account status without the optional email field, plus obsolete optional-field handling.
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