TASK22269: add signed request client and migrate portal deleteWatchedCases pilot

tests/phase22/portal-service-behaviour.test.cjs

@@ -134,6 +134,27 @@ test("portal/sendRepCompleteMessage rejects when hash signing fails before reque
     assert.strictEqual(logger.calls.length, 0);
 });
 
+test("portal/deleteWatchedCases logs and returns undefined when signed delete fails", async () => {
+    const axios = createAxiosMock();
+    const logger = createLoggerMock();
+    const error = createAxiosError(401, "Unauthorized");
+
+    const portal = loadServiceModule("portalDirectService.js", {
+        axios,
+        BASE_URL: "",
+        consoleLogger: logger.consoleLogger,
+        deleteSignedJson: async () => {
+            throw error;
+        }
+    });
+
+    const result = await portal.deleteWatchedCases("watch-2");
+
+    assert.strictEqual(result, undefined);
+    assert.strictEqual(logger.calls.length, 1);
+    assert.strictEqual(logger.calls[0], error);
+});
+
 const run = async () => {
     let passed = 0;