feat(haproxy): timeout client/server 30s → 60s

KVS / management-center brauchen länger als 30s für TOTP-Validierung
(externe Session-Storage). Erhöht beide auf 60s — sicher noch unter
keepalive-grenzen, deckt aber legacy-Auth-flows ab.

Plus: VERSION bump 1.0.20 (asg{1,2}-cleanup direkt am DB-State,
keine code-Änderung dafür).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

management-ui/package.json

@@ -1,7 +1,7 @@
 {
   "name": "edgeguard-management-ui",
   "private": true,
-  "version": "1.0.19",
+  "version": "1.0.20",
   "type": "module",
   "scripts": {
     "dev": "vite",

management-ui/src/components/Layout/Sidebar.tsx

@@ -70,7 +70,7 @@ const NAV: NavSection[] = [
   },
 ]
 
-const VERSION = '1.0.19'
+const VERSION = '1.0.20'
 
 export default function Sidebar({ isOpen, onClose }: SidebarProps) {
   const { t } = useTranslation()