refactor: replace Eye icon with ScanEye in multiple components and enhance model not found messages

surfsense_web/components/settings/llm-role-manager.tsx

@@ -6,7 +6,7 @@ import {
 	Bot,
 	CircleCheck,
 	CircleDashed,
-	Eye,
+	ScanEye,
 	FileText,
 	ImageIcon,
 	RefreshCw,
@@ -74,7 +74,7 @@ const ROLE_DESCRIPTIONS = {
 		configType: "image" as const,
 	},
 	vision: {
-		icon: Eye,
+		icon: ScanEye,
 		title: "Vision LLM",
 		description: "Vision-capable model for screenshot analysis and context extraction",
 		color: "text-muted-foreground",

surfsense_web/components/settings/search-space-settings-dialog.tsx

@@ -7,7 +7,7 @@ import {
 	Brain,
 	CircleUser,
 	Earth,
-	Eye,
+	ScanEye,
 	ImageIcon,
 	ListChecks,
 	UserKey,
@@ -97,7 +97,7 @@ export function SearchSpaceSettingsDialog({ searchSpaceId }: SearchSpaceSettings
 		{
 			value: "vision-models",
 			label: t("nav_vision_models"),
-			icon: <Eye className="h-4 w-4" />,
+			icon: <ScanEye className="h-4 w-4" />,
 		},
 		{ value: "team-roles", label: t("nav_team_roles"), icon: <UserKey className="h-4 w-4" /> },
 		{