feat: add comprehensive Playwright E2E test suite

- Create e2e/ directory with 7 test modules covering:
  - Home page: title, nav links, theme toggle, newsletter form
  - Cookie consent: accept all, reject all, granular prefs, persistence
  - Article index: loads, tag filter, click-through navigation
  - Article detail: title/read-time, share section, comments, newsletter aside, related
  - Comments: valid submit → redirect, empty body → error display, disabled check
  - Newsletter: JS confirmation message, invalid email error, aside form, duplicate
  - Feeds: RSS/sitemap/robots.txt validity, tag feed, seeded content present
- Extend seed_e2e_content management command with tagged article, about page,
  no-comments article, and legal pages for richer test coverage
- Add seed command tests (create + idempotency) to keep coverage ≥ 90%
- Add pr-e2e CI job (runs on pull_request): builds image, starts postgres + app,
  installs playwright, runs pytest e2e/
- Update nightly-e2e to run full e2e/ suite alongside legacy journey test
- Add --ignore=e2e to unit-test pytest step (coverage must not include browser tests)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

.gitea/workflows/ci.yml

@@ -44,7 +44,7 @@ jobs:
         run: docker run --rm --network container:ci-postgres -e SECRET_KEY=ci-secret-key -e DATABASE_URL=postgres://nohype:nohype@127.0.0.1:5432/nohype "$CI_IMAGE" mypy apps config
 
       - name: Pytest
-        run: docker run --rm --network container:ci-postgres -e SECRET_KEY=ci-secret-key -e DATABASE_URL=postgres://nohype:nohype@127.0.0.1:5432/nohype "$CI_IMAGE" pytest
+        run: docker run --rm --network container:ci-postgres -e SECRET_KEY=ci-secret-key -e DATABASE_URL=postgres://nohype:nohype@127.0.0.1:5432/nohype "$CI_IMAGE" pytest --ignore=e2e
 
       - name: Tailwind build (assert generated diff is clean)
         run: |
@@ -67,6 +67,71 @@ jobs:
         if: always()
         run: docker image rm -f "$CI_IMAGE" || true
 
+  pr-e2e:
+    if: github.event_name == 'pull_request'
+    runs-on: ubuntu-latest
+    env:
+      CI_IMAGE: nohype-ci-e2e:${{ github.run_id }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Build
+        run: docker build -t "$CI_IMAGE" .
+
+      - name: Start PostgreSQL
+        run: |
+          docker run -d --name pr-e2e-postgres \
+            -e POSTGRES_DB=nohype \
+            -e POSTGRES_USER=nohype \
+            -e POSTGRES_PASSWORD=nohype \
+            postgres:16-alpine
+          for i in $(seq 1 30); do
+            if docker exec pr-e2e-postgres pg_isready -U nohype -d nohype >/dev/null; then
+              exit 0
+            fi
+            sleep 2
+          done
+          docker logs pr-e2e-postgres || true
+          exit 1
+
+      - name: Start app with seeded content
+        run: |
+          docker run -d --name pr-e2e-app --network container:pr-e2e-postgres \
+            -e SECRET_KEY=ci-secret-key \
+            -e DATABASE_URL=postgres://nohype:nohype@127.0.0.1:5432/nohype \
+            -e CONSENT_POLICY_VERSION=1 \
+            -e EMAIL_BACKEND=django.core.mail.backends.console.EmailBackend \
+            -e DEFAULT_FROM_EMAIL=hello@nohypeai.com \
+            -e NEWSLETTER_PROVIDER=buttondown \
+            "$CI_IMAGE" \
+            sh -lc "python manage.py migrate --noinput && python manage.py seed_e2e_content && python manage.py runserver 0.0.0.0:8000"
+          for i in $(seq 1 40); do
+            if docker exec pr-e2e-app curl -fsS http://127.0.0.1:8000/ >/dev/null; then
+              exit 0
+            fi
+            sleep 2
+          done
+          docker logs pr-e2e-app || true
+          exit 1
+
+      - name: Install Playwright browsers
+        run: docker exec pr-e2e-app python -m playwright install chromium
+
+      - name: Run E2E tests
+        run: |
+          docker exec -e E2E_BASE_URL=http://127.0.0.1:8000 pr-e2e-app \
+            pytest e2e/ -o addopts='' -q --tb=short
+
+      - name: Remove containers
+        if: always()
+        run: |
+          docker rm -f pr-e2e-app || true
+          docker rm -f pr-e2e-postgres || true
+
+      - name: Remove CI image
+        if: always()
+        run: docker image rm -f "$CI_IMAGE" || true
+
   nightly-e2e:
     if: github.event_name == 'schedule'
     runs-on: ubuntu-latest
@@ -96,6 +161,10 @@ jobs:
           docker run -d --name nightly-e2e --network container:nightly-postgres \
             -e SECRET_KEY=ci-secret-key \
             -e DATABASE_URL=postgres://nohype:nohype@127.0.0.1:5432/nohype \
+            -e CONSENT_POLICY_VERSION=1 \
+            -e EMAIL_BACKEND=django.core.mail.backends.console.EmailBackend \
+            -e DEFAULT_FROM_EMAIL=hello@nohypeai.com \
+            -e NEWSLETTER_PROVIDER=buttondown \
             "$CI_IMAGE" \
             sh -lc "python manage.py migrate --noinput && python manage.py seed_e2e_content && python manage.py runserver 0.0.0.0:8000"
           for i in $(seq 1 40); do
@@ -106,11 +175,11 @@ jobs:
           done
           docker logs nightly-e2e || true
           exit 1
-      - name: Run nightly Playwright journey
+      - name: Run Playwright E2E tests
         run: |
           docker exec nightly-e2e python -m playwright install chromium
           docker exec -e E2E_BASE_URL=http://127.0.0.1:8000 nightly-e2e \
-            pytest -o addopts='' apps/core/tests/test_nightly_e2e_playwright.py -q
+            pytest e2e/ apps/core/tests/test_nightly_e2e_playwright.py -o addopts='' -q --tb=short
       - name: Remove nightly container
         if: always()
         run: |