Desktop/remove hard requirement auth wall on desktop (#5956)

Co-authored-by: Claude Sonnet 4.6 <[email protected]>

frontend/src/core/tools/CertSign.tsx

@@ -113,7 +113,8 @@ const CertSign = (props: BaseToolProps) => {
       isVisible: !base.hasResults,
       loadingText: t("loading"),
       onClick: base.handleExecute,
-      disabled: !base.params.validateParameters() || !base.hasFiles || !base.endpointEnabled,
+      endpointEnabled: base.endpointEnabled,
+      paramsValid: base.params.validateParameters(),
     },
     review: {
       isVisible: base.hasResults,