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/environment-tab.tsx

@@ -67,6 +67,7 @@ export function EnvironmentTab() {
   }
   if (!data) return null;
 
+  const infisicalAvailable = data.errors.length === 0;
   const driftCount = data.vars.filter((v) => v.drift).length;
 
   return (
@@ -122,6 +123,7 @@ export function EnvironmentTab() {
                     spec={v}
                     infisicalProjectId={data.infisical_project_id}
                     infisicalEnv={data.infisical_environment}
+                    infisicalAvailable={infisicalAvailable}
                     onPendingRedeploy={() => setPendingRedeploy(true)}
                   />
                 ))}