test(e2e): add a model pattern before saving a pricing rule

.github/workflows/e2eci.yaml

@@ -40,6 +40,7 @@ jobs:
       matrix:
         project:
           - chromium
+        shard: [1, 2, 3, 4]
     if: |
       ((github.event_name == 'pull_request' && ! github.event.pull_request.head.repo.fork && github.event.pull_request.user.login != 'dependabot[bot]' && ! contains(github.event.pull_request.labels.*.name, 'safe-to-test')) ||
       (github.event_name == 'pull_request_target' && contains(github.event.pull_request.labels.*.name, 'safe-to-test'))) && contains(github.event.pull_request.labels.*.name, 'safe-to-e2e')
@@ -48,12 +49,33 @@ jobs:
     steps:
       - name: checkout
         uses: actions/checkout@v4
+      # Images bring-up-stack would otherwise pull, at the tests/conftest.py
+      # defaults. A stale tag only loses the head start.
+      - name: pull-images
+        id: pull-images
+        background: true
+        run: |
+          printf '%s\n' \
+            node:22-bookworm \
+            golang:1.25-bookworm \
+            python:3.13-slim \
+            postgres:15 \
+            clickhouse/clickhouse-server:25.12.5 \
+            clickhouse/clickhouse-keeper:25.12.5 \
+            signoz/signoz-schema-migrator:v0.144.9 \
+            wiremock/wiremock:2.35.1-1 \
+            | xargs -P 0 -n 1 docker pull -q
       - name: python
         uses: actions/setup-python@v5
         with:
           python-version: 3.13
       - name: uv
         uses: astral-sh/setup-uv@v4
+      - name: python-install
+        id: python-install
+        background: true
+        run: |
+          cd tests && uv sync
       - name: node
         uses: actions/setup-node@v4
         with:
@@ -62,19 +84,9 @@ jobs:
         uses: pnpm/action-setup@v6
         with:
           version: 10
-      - name: python-install
-        run: |
-          cd tests && uv sync
       - name: pnpm-install
         run: |
           cd tests/e2e && pnpm install --frozen-lockfile
-      - name: playwright-browsers
-        run: |
-          docker create --name pw mcr.microsoft.com/playwright:v1.57.0-noble
-          docker cp pw:/ms-playwright "$RUNNER_TEMP/ms-playwright"
-          docker rm pw
-          echo "PLAYWRIGHT_BROWSERS_PATH=$RUNNER_TEMP/ms-playwright" >> "$GITHUB_ENV"
-          cd tests/e2e && pnpm playwright install-deps ${{ matrix.project }}
       # Restore-only: the cacheci workflow owns cache saves. Seeds the
       # BuildKit cache mounts so the in-test image build is incremental.
       - name: restore
@@ -99,6 +111,19 @@ jobs:
               tar -xf /restored/pnpm-store.tar -C /pnpm/store
           EOF
           docker build -f "$RUNNER_TEMP/inject.Dockerfile" "$RUNNER_TEMP/cacheci"
+      - name: wait-stack-deps
+        wait: [pull-images, python-install]
+      # Started after the pulls so its download overlaps the CPU-bound
+      # image build instead of competing for the network.
+      - name: playwright-browsers
+        id: playwright-browsers
+        background: true
+        run: |
+          docker create --name pw mcr.microsoft.com/playwright:v1.57.0-noble
+          docker cp pw:/ms-playwright "$RUNNER_TEMP/ms-playwright"
+          docker rm pw
+          echo "PLAYWRIGHT_BROWSERS_PATH=$RUNNER_TEMP/ms-playwright" >> "$GITHUB_ENV"
+          cd tests/e2e && pnpm playwright install-deps ${{ matrix.project }}
       - name: bring-up-stack
         run: |
           cd tests && \
@@ -106,10 +131,12 @@ jobs:
             --basetemp=./tmp/ \
             -vv --reuse --with-web \
             e2e/bootstrap/setup.py::test_setup
+      - name: wait-playwright-browsers
+        wait: playwright-browsers
       - name: playwright-test
         run: |
           cd tests/e2e && \
-            pnpm playwright test --project=${{ matrix.project }}
+            pnpm playwright test --project=${{ matrix.project }} --shard=${{ matrix.shard }}/4
       - name: teardown-stack
         if: always()
         run: |
@@ -122,6 +149,6 @@ jobs:
         if: always()
         uses: actions/upload-artifact@v4
         with:
-          name: playwright-artifacts-${{ matrix.project }}
+          name: playwright-artifacts-${{ matrix.project }}-${{ matrix.shard }}
           path: tests/e2e/artifacts/
           retention-days: 5

tests/conftest.py

@@ -99,6 +99,7 @@ def pytest_addoption(parser: pytest.Parser):
         default="delete",
         help="sqlite mode",
     )
+    # Keep the version defaults below in sync with pull-images in .github/workflows/e2eci.yaml.
     parser.addoption(
         "--postgres-version",
         action="store",

tests/e2e/tests/llm-o11y/llm-pricing.spec.ts

@@ -33,6 +33,8 @@ test.describe('LLM Observability — Model Pricing', () => {
 		await expect(page.getByTestId('drawer-model-id-input')).toBeVisible();
 
 		await page.getByTestId('drawer-model-id-input').fill(MODEL_NAME);
+		await page.getByTestId('drawer-pattern-input').fill(MODEL_NAME);
+		await page.getByTestId('drawer-pattern-add-btn').click();
 		await page.getByTestId('drawer-input-cost').fill(INPUT_COST);
 		await page.getByTestId('drawer-output-cost').fill(OUTPUT_COST);