feat(ui): replace D3+Dagre attack path graph with React Flow (#10686)

Co-authored-by: Pablo F.G <pablo.fernandez@prowler.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: Alan Buscaglia <gentlemanprogramming@gmail.com>

ui/.gitignore

@@ -7,6 +7,7 @@
 
 # testing
 /coverage
+__screenshots__/
 
 # next.js
 /.next/
@@ -28,6 +29,9 @@ yarn-error.log*
 .env*.local
 .env
 
+# Claude Code local settings
+.claude/
+
 # vercel
 .vercel