Fix lint errors and restore token auth redirect logic

- Fix golangci-lint wsl errors in gcp_test.go by adding blank lines
  before assignments that were cuddled with non-assignments
- Restore accidentally removed redirect logic in AuthChooser that
  automatically redirects to the token page when a cluster requires
  token authentication without OIDC configured

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: drduker

backend/pkg/auth/gcp_test.go

@@ -288,6 +288,7 @@ func TestHandleGCPAuthCallback_StateMismatch(t *testing.T) {
 		Name:  "gcp_oauth_cluster",
 		Value: "test-cluster",
 	})
+
 	rr := httptest.NewRecorder()
 
 	handler(rr, req)
@@ -309,6 +310,7 @@ func TestHandleGCPAuthCallback_MissingClusterCookie(t *testing.T) {
 		Name:  "gcp_oauth_state",
 		Value: "test-state",
 	})
+
 	rr := httptest.NewRecorder()
 
 	handler(rr, req)
@@ -334,6 +336,7 @@ func TestHandleGCPAuthCallback_InvalidClusterInCookie(t *testing.T) {
 		Name:  "gcp_oauth_cluster",
 		Value: "-invalid-cluster",
 	})
+
 	rr := httptest.NewRecorder()
 
 	handler(rr, req)

frontend/src/components/authchooser/index.tsx

@@ -159,9 +159,23 @@ function AuthChooser({ children }: AuthChooserProps) {
               // just redirect.
               if (cluster.useToken === false) {
                 history.replace(from);
+              } else if (!clusterAuthType) {
+                // we know that it requires token and also doesn't have oidc configured
+                // so let's redirect to token page
+                history.replace({
+                  pathname: generatePath(getClusterPrefixedPath('token'), {
+                    cluster: clusterName as string,
+                  }),
+                });
               }
             }
           });
+      } else if (cluster.useToken) {
+        history.replace({
+          pathname: generatePath(getClusterPrefixedPath('token'), {
+            cluster: clusterName as string,
+          }),
+        });
       }
     },
     // eslint-disable-next-line