test: stabilize model pricing generator e2e

web/e2e/model-pricing.spec.ts

@@ -27,6 +27,10 @@ async function fillByTestId(page: Page, testId: string, value: string) {
   await fillControl(page.getByTestId(testId), value);
 }
 
+async function countGeneratorRatioRows(page: Page) {
+  return await page.getByTestId(/^generator-ratio-value-/).count();
+}
+
 async function fetchModelPricing(
   request: APIRequestContext,
   model: string,
@@ -67,8 +71,9 @@ test.describe.serial('Model Pricing E2E', () => {
 
     const generator = page.getByTestId('model-pricing-generator');
     await generator.locator('input[value="replace_all"]').check({ force: true });
-    await fillByTestId(page, 'generator-ratio-value-2', '1');
-    await fillByTestId(page, 'generator-ratio-ratio-2', '1.5');
+    const qualityRowIndex = (await countGeneratorRatioRows(page)) - 1;
+    await fillByTestId(page, `generator-ratio-value-${qualityRowIndex}`, 'standard');
+    await fillByTestId(page, `generator-ratio-ratio-${qualityRowIndex}`, '1.5');
     await expect(page.getByTestId('generator-apply')).toBeEnabled();
     await page.getByTestId('generator-apply').click();