Replace CI lint jobs with backend, frontend, and e2e test jobs

Lint, formatting, and type checks are already enforced by prek pre-commit
hooks, so CI now focuses on running the actual test suites instead.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.github/workflows/ci.yml

@@ -22,40 +22,39 @@ permissions:
   contents: read
 
 jobs:
-  backend-lint:
+  backend-tests:
     runs-on: ubuntu-latest
+    services:
+      postgres:
+        image: postgres:16-alpine
+        ports:
+          - 5433:5432
+        env:
+          POSTGRES_USER: postgres
+          POSTGRES_PASSWORD: postgres
+          POSTGRES_DB: nuzlocke_test
+        options: >-
+          --health-cmd "pg_isready -U postgres"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
     steps:
       - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5  # v4.3.1
         with:
           persist-credentials: false
-      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065  # v5.6.0
+      - uses: astral-sh/setup-uv@d0cc045d04ccac9d8b7881df0226f9e82c39688e  # v6.8.0
         with:
           python-version: "3.14"
-      - run: pip install ruff ty
-      - name: Check linting
-        run: ruff check backend/
-      - name: Check formatting
-        run: ruff format --check backend/
-      - name: Type check
-        run: ty check backend/src/
-        continue-on-error: true
+      - name: Install dependencies
+        run: uv pip install --system -e ".[dev]"
+        working-directory: backend
+      - name: Run tests
+        run: pytest -q
+        working-directory: backend
+        env:
+          TEST_DATABASE_URL: postgresql+asyncpg://postgres:postgres@localhost:5433/nuzlocke_test
 
-  actions-lint:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5  # v4.3.1
-        with:
-          persist-credentials: false
-      - name: Install actionlint
-        run: |
-          bash <(curl -sL https://raw.githubusercontent.com/rhysd/actionlint/main/scripts/download-actionlint.bash)
-          sudo mv actionlint /usr/local/bin/
-      - name: Lint GitHub Actions
-        run: actionlint
-      - name: Audit GitHub Actions security
-        run: pipx run zizmor .github/workflows/
-
-  frontend-lint:
+  frontend-tests:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5  # v4.3.1
@@ -67,12 +66,31 @@ jobs:
       - name: Install dependencies
         run: npm ci
         working-directory: frontend
-      - name: Lint
-        run: npm run lint
+      - name: Run tests
+        run: npm test
         working-directory: frontend
-      - name: Check formatting
-        run: npx oxfmt --check "src/"
+
+  e2e-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5  # v4.3.1
+        with:
+          persist-credentials: false
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020  # v4.4.0
+        with:
+          node-version: "24"
+      - name: Install dependencies
+        run: npm ci
         working-directory: frontend
-      - name: Type check
-        run: npx tsc -b
+      - name: Install Playwright browsers
+        run: npx playwright install --with-deps chromium
         working-directory: frontend
+      - name: Run e2e tests
+        run: npm run test:e2e
+        working-directory: frontend
+      - name: Upload Playwright report
+        if: failure()
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02  # v4.6.2
+        with:
+          name: playwright-report
+          path: frontend/playwright-report/