reach own docker daemon over tcp on socket-proxy setups; re-run host detection when an environment is added or edited; keep scanner on the host socket

src/routes/settings/about/AboutTab.svelte

@@ -4,7 +4,7 @@
 	import { Badge } from '$lib/components/ui/badge';
 	import { Button } from '$lib/components/ui/button';
 	import { Input } from '$lib/components/ui/input';
-	import { Box, Images, HardDrive, Network, Cpu, Server, Crown, Building2, Layers, Clock, Code, Package, ExternalLink, Search, FileText, Tag, Sparkles, Bug, ChevronDown, ChevronRight, Plug, ScrollText, Shield, MessageSquarePlus, GitBranch, Coffee, Monitor, Cog, MemoryStick, Database, CircleArrowUp, Loader2, CheckCircle2 } from 'lucide-svelte';
+	import { Box, Images, HardDrive, Network, Cpu, Server, Crown, Building2, Layers, Clock, Code, Package, ExternalLink, Search, FileText, Tag, Sparkles, Bug, ChevronDown, ChevronRight, Plug, ScrollText, Shield, MessageSquarePlus, GitBranch, Coffee, Monitor, Cog, MemoryStick, Database, CircleArrowUp, Loader2, CheckCircle2, TriangleAlert } from 'lucide-svelte';
 	import * as Tabs from '$lib/components/ui/tabs';
 	import { onMount, onDestroy } from 'svelte';
 	import { licenseStore } from '$lib/stores/license';
@@ -512,8 +512,9 @@
 								Up to date
 							</button>
 						{:else if updateCheckError}
-							<button class="flex items-center gap-1 text-xs text-muted-foreground hover:text-foreground transition-colors" onclick={checkForUpdates} title={updateCheckError}>
-								Check for updates
+							<button class="flex items-center gap-1 text-xs text-foreground hover:text-muted-foreground transition-colors" onclick={checkForUpdates} title={updateCheckError}>
+								<TriangleAlert class="w-3.5 h-3.5 shrink-0" />
+								Update check unavailable — click to retry
 							</button>
 						{/if}
 					</div>