PHPGuard 1.9.0 — Phase 10

Redesigned report presentation with grouped cards and severity colours.
Multi-page PDF report export with a coloured header, findings, inventory and footer.
Clear all scan history with confirmation; delete individual scans.
New native Settings window: Intelligence, Reports & History, About.
Persistent preferences for CVE auto-refresh, history retention, PDF accent and confirmation.
Fixed missing SettingsView.swift source reference in 1.8.0.

Note: PDF reports are assessments, not verified CVE attestations.