fix: refresh action cache and classify auth failures

client_test.go

@@ -231,6 +231,54 @@ func TestRequestRejectsHTTPStatus(t *testing.T) {
 	}
 }
 
+func TestBusinessRequestClassifiesReauthenticationFailures(t *testing.T) {
+	tests := []struct {
+		name         string
+		status       int
+		body         string
+		wantSentinel bool
+		wantCode     int
+		wantLogin    bool
+	}{
+		{name: "HTTP 401", status: http.StatusUnauthorized, body: "expired", wantSentinel: true, wantCode: http.StatusUnauthorized, wantLogin: true},
+		{name: "HTTP 403", status: http.StatusForbidden, body: "forbidden", wantSentinel: true, wantCode: http.StatusForbidden, wantLogin: true},
+		{name: "API -10020", body: `{"code":-10020,"message":"oauth expired"}`, wantSentinel: true, wantCode: -10020},
+		{name: "API -10030", body: `{"code":-10030,"message":"token expired"}`, wantSentinel: true, wantCode: -10030},
+		{name: "HTTP 500", status: http.StatusInternalServerError, body: "failed", wantCode: http.StatusInternalServerError},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			server := httptest.NewServer(http.HandlerFunc(func(writer http.ResponseWriter, _ *http.Request) {
+				if test.status != 0 {
+					writer.WriteHeader(test.status)
+				}
+				_, _ = io.WriteString(writer, test.body)
+			}))
+			defer server.Close()
+
+			client := testClient(t, server.Client())
+			client.baseURL = server.URL
+			_, err := client.request(context.Background(), "/business", nil, true)
+			if errors.Is(err, ErrReauthenticationRequired) != test.wantSentinel {
+				t.Fatalf("error = %v, ErrReauthenticationRequired = %v", err, errors.Is(err, ErrReauthenticationRequired))
+			}
+			if test.wantLogin {
+				var loginErr *LoginError
+				if !errors.As(err, &loginErr) || loginErr.Code != test.wantCode {
+					t.Fatalf("error = %v, want LoginError code %d", err, test.wantCode)
+				}
+				return
+			}
+			if test.status == 0 {
+				var apiErr *APIError
+				if !errors.As(err, &apiErr) || apiErr.Code != test.wantCode {
+					t.Fatalf("error = %v, want APIError code %d", err, test.wantCode)
+				}
+			}
+		})
+	}
+}
+
 func TestRequestRejectsOversizedRawResponse(t *testing.T) {
 	server := httptest.NewServer(http.HandlerFunc(func(writer http.ResponseWriter, _ *http.Request) {
 		_, _ = writer.Write(bytes.Repeat([]byte{'x'}, maxHTTPResponseBytes+1))