v0.30.2: Report geo-restriction + logo/favicon update + Hub geo auth

- Add GeoRestrictionReport to report types and builder, so Hub can
  display geo-blocking status on customer detail pages
- Update all 5 BuildReport() call sites with new geoRestriction param
- Add /api/geo/ to selfUpdateAuthMiddleware (Hub Bearer token auth)
- Replace embedded logo SVG with updated logo.svg (white text variant)
- Add FelhomFaviconSVG constant + /static/favicon.svg route
- Update layout.html and catchall.html favicon links

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

controller/internal/web/templates/layout.html

@@ -5,7 +5,7 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>{{.Title}} — Felhom.eu</title>
-    <link rel="icon" type="image/svg+xml" href="/static/felhom-logo.svg">
+    <link rel="icon" type="image/svg+xml" href="/static/favicon.svg">
     <link rel="stylesheet" href="/static/style.css">
     <meta name="csrf-token" content="{{.CSRFToken}}">
     <script>