feat(grokbuild): add first-class Grok Build support (#5453)

* feat(grokbuild): add backend integration

* feat(grokbuild): add provider and management UI

* test(grokbuild): cover configuration and integrations

* fix(grokbuild): address backend review feedback

* fix(grokbuild): complete UI review feedback

* feat(grokbuild): add CLI lifecycle management

* fix(grokbuild): align provider icon fallback

* test(grokbuild): cover provider icon persistence

src/components/providers/ProviderCard.tsx

@@ -28,6 +28,7 @@ import {
 import { supportsOfficialProxyTakeover } from "@/utils/providerCapabilities";
 import { useProviderHealth } from "@/lib/query/failover";
 import { useUsageQuery } from "@/lib/query/queries";
+import { resolveProviderIcon } from "@/utils/providerIcon";
 
 interface DragHandleProps {
   attributes: DraggableAttributes;
@@ -350,7 +351,11 @@ export function ProviderCard({
 
           <div className="h-8 w-8 flex-shrink-0 rounded-lg bg-muted flex items-center justify-center border border-border group-hover:scale-105 transition-transform duration-300">
             <ProviderIcon
-              icon={provider.icon}
+              icon={resolveProviderIcon(
+                appId,
+                provider.icon,
+                provider.iconColor,
+              )}
               name={provider.name}
               color={provider.iconColor}
               size={20}