v0.35.1: performance, AGPL licensing and documentation overhaul

- Web Server reads static files inline; proxy middleware chain flattened
- About window with license summary and project links; AGPL-3.0-or-later
- Rewritten documentation: feature list, screenshots, performance guide
- Fix false spikes in per-Vhost request-rate charts

src/admin/web/css/70-responsive.css

@@ -1,6 +1,4 @@
-/* Responsive rules. Each viewport, container and reduced-motion condition is declared once.
- * Historical overrides were resolved before consolidation; preserve the documented order.
- */
+/* Responsive rules */
 
 @media (min-width:1201px) {
   #panel-overview .stats-grid {
@@ -1052,7 +1050,8 @@
   }
 
   .named-listener-row .vh-grid,
-  .about-meta {
+  .about-meta,
+  .about-links {
     grid-template-columns: 1fr;
   }
 
@@ -1388,7 +1387,6 @@
     letter-spacing: -2px;
   }
 
-  /* The standalone auth heading keeps its later, unconditional font size. */
   .login-section h1:where(:not(.auth-main h1)) {
     font-size: 40px;
   }