Virusdie Integration 5.1

Fixed: Scan synchronization and report accuracy.
Fixed: Corrected dashboard columns, firewall/autocleanup indicators, and file-size formatting.
Added: Extension base information so the plugin can now expose its database tables and schema details to the MainWP interface.
Added: Account entitlement checks and manual scan validation.
Updated: Improved error handling when connecting sites and uploading sync files.
Updated: Improved database save and update handling for scan data and reports, helping ensure records are created or updated more reliably.
Updated: Strengthened input validation and prevented sensitive API data from appearing in debug logs.
Updated: Reduced database queries for better performance on larger dashboards.