fix(test): update task type selector from 'task' to 'issue'

Frontend P7.1 removed 'task' type from TASK_TYPES. The valid options
are now: story, issue, test, maintenance, research, review, resolution.

Update test to use 'issue' which is the current default.

tests/task.spec.ts

@@ -157,7 +157,7 @@ test.describe('Task & Comment Flow', () => {
     console.log('Milestone options:', msOptions);
     await milestoneSelect.selectOption({ label: milestoneName });
 
-    await page.getByTestId('task-type-select').selectOption('task');
+    await page.getByTestId('task-type-select').selectOption('issue');
     await page.waitForTimeout(300);
 
     const createTaskResponsePromise = page.waitForResponse((response) => {