fix(settings): unknown drift state when Infisical unavailable + RTL drawer

- DriftBadge shows 'Unknown' (not 'Synced') when infisical_available=false
- Plumb infisicalAvailable from EnvironmentTab through EnvVarRow → DriftBadge
- Add dir='rtl' to ToolDetailDrawer SheetContent for Hebrew descriptions

web-ui/src/app/settings/_components/drift-badge.tsx

@@ -1,9 +1,27 @@
 "use client";
 
-import { AlertTriangle, CheckCircle2 } from "lucide-react";
+import { AlertTriangle, CheckCircle2, HelpCircle } from "lucide-react";
 import { Badge } from "@/components/ui/badge";
 
-export function DriftBadge({ drift }: { drift: boolean }) {
+type Props = {
+  drift: boolean;
+  // When false, Infisical was unreachable: drift state is unknown, not "synced".
+  infisicalAvailable?: boolean;
+};
+
+export function DriftBadge({ drift, infisicalAvailable = true }: Props) {
+  if (!infisicalAvailable) {
+    return (
+      <Badge
+        variant="outline"
+        className="text-ink-muted border-rule gap-1"
+        title="Infisical לא זמין — מצב ה-drift לא ידוע"
+      >
+        <HelpCircle className="w-3 h-3" />
+        Unknown
+      </Badge>
+    );
+  }
   if (drift) {
     return (
       <Badge variant="outline" className="text-warn border-warn/40 gap-1">