fix(ui): disable retries on readiness/details + cover token forwarding

Two small follow-ups on the readiness/details migration:

- Set `retry: false` on the query. The payload feeds a passive
  navbar tag and a debug banner; a 401 from an expired token
  shouldn't fan out into three retries against the proxy.
- Add navbar specs that assert the `accessToken` prop is forwarded
  into the hook (matches the DebugWarningBanner spec). Without
  this, the navbar could silently regress to passing `undefined`
  and the existing tests wouldn't catch it.

ui/litellm-dashboard/src/app/(dashboard)/hooks/healthReadiness/useHealthReadinessDetails.ts

@@ -54,5 +54,8 @@ export const useHealthReadinessDetails = (
     queryFn: () => fetchHealthReadinessDetails(accessToken!),
     enabled: Boolean(accessToken),
     staleTime: 5 * 60 * 1000,
+    // The response feeds a passive navbar tag and a debug banner — a failed
+    // call (e.g. expired token → 401) shouldn't fan out into three retries.
+    retry: false,
   });
 };

ui/litellm-dashboard/src/components/navbar.test.tsx

@@ -99,12 +99,17 @@ let mockUseAuthorizedImpl = () => ({
   premiumUser: false,
 });
 
+const useHealthReadinessDetailsSpy = vi.hoisted(() => vi.fn());
+
 vi.mock("@/contexts/ThemeContext", () => ({
   useTheme: () => mockUseThemeImpl(),
 }));
 
 vi.mock("@/app/(dashboard)/hooks/healthReadiness/useHealthReadinessDetails", () => ({
-  useHealthReadinessDetails: () => mockUseHealthReadinessDetailsImpl(),
+  useHealthReadinessDetails: (accessToken: string | null | undefined) => {
+    useHealthReadinessDetailsSpy(accessToken);
+    return mockUseHealthReadinessDetailsImpl();
+  },
 }));
 
 vi.mock("@/app/(dashboard)/hooks/useAuthorized", () => ({
@@ -214,6 +219,22 @@ describe("Navbar", () => {
     mockUseHealthReadinessDetailsImpl = () => ({ data: null });
   });
 
+  it("should forward accessToken to the readiness hook", () => {
+    useHealthReadinessDetailsSpy.mockClear();
+
+    renderWithProviders(<Navbar {...defaultProps} accessToken="my-token" />);
+
+    expect(useHealthReadinessDetailsSpy).toHaveBeenCalledWith("my-token");
+  });
+
+  it("should forward a null accessToken to the readiness hook (disables the hook)", () => {
+    useHealthReadinessDetailsSpy.mockClear();
+
+    renderWithProviders(<Navbar {...defaultProps} accessToken={null} />);
+
+    expect(useHealthReadinessDetailsSpy).toHaveBeenCalledWith(null);
+  });
+
   it("should use custom logo from theme context", () => {
     mockUseThemeImpl = () => ({ logoUrl: "https://example.com/custom-logo.png" });