Make Playwright cache runner-agnostic

Replace hardcoded /opt/playwright-tools mount with a persistent Docker volume cache and install Chromium into that cache before E2E jobs.

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

.gitea/workflows/ci.yml

@@ -75,12 +75,22 @@ jobs:
     runs-on: ubuntu-latest
     env:
       CI_IMAGE: nohype-ci-e2e:${{ github.run_id }}
+      PLAYWRIGHT_CACHE_VOLUME: nohype-playwright-browsers
     steps:
       - uses: actions/checkout@v4
 
       - name: Build
         run: docker build -t "$CI_IMAGE" .
 
+      - name: Ensure Playwright Chromium cache
+        run: |
+          docker volume create "$PLAYWRIGHT_CACHE_VOLUME" >/dev/null
+          docker run --rm \
+            -v "$PLAYWRIGHT_CACHE_VOLUME:/ms-playwright" \
+            -e PLAYWRIGHT_BROWSERS_PATH=/ms-playwright \
+            "$CI_IMAGE" \
+            python -m playwright install chromium
+
       - name: Start PostgreSQL
         run: |
           docker run -d --name pr-e2e-postgres \
@@ -100,14 +110,14 @@ jobs:
       - name: Start app with seeded content
         run: |
           docker run -d --name pr-e2e-app --network container:pr-e2e-postgres \
-            -v /opt/playwright-tools/browsers:/opt/playwright-tools/browsers:ro \
+            -v "$PLAYWRIGHT_CACHE_VOLUME:/ms-playwright:ro" \
             -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 \
-            -e PLAYWRIGHT_BROWSERS_PATH=/opt/playwright-tools/browsers \
+            -e PLAYWRIGHT_BROWSERS_PATH=/ms-playwright \
             "$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 $(seq 1 40); do
@@ -139,10 +149,19 @@ jobs:
     runs-on: ubuntu-latest
     env:
       CI_IMAGE: nohype-ci-nightly:${{ github.run_id }}
+      PLAYWRIGHT_CACHE_VOLUME: nohype-playwright-browsers
     steps:
       - uses: actions/checkout@v4
       - name: Build
         run: docker build -t "$CI_IMAGE" .
+      - name: Ensure Playwright Chromium cache
+        run: |
+          docker volume create "$PLAYWRIGHT_CACHE_VOLUME" >/dev/null
+          docker run --rm \
+            -v "$PLAYWRIGHT_CACHE_VOLUME:/ms-playwright" \
+            -e PLAYWRIGHT_BROWSERS_PATH=/ms-playwright \
+            "$CI_IMAGE" \
+            python -m playwright install chromium
       - name: Start PostgreSQL
         run: |
           docker run -d --name nightly-postgres \
@@ -161,14 +180,14 @@ jobs:
       - name: Start dev server with seeded content
         run: |
           docker run -d --name nightly-e2e --network container:nightly-postgres \
-            -v /opt/playwright-tools/browsers:/opt/playwright-tools/browsers:ro \
+            -v "$PLAYWRIGHT_CACHE_VOLUME:/ms-playwright:ro" \
             -e SECRET_KEY=ci-secret-key \
             -e DATABASE_URL=postgres://nohype:nohype@127.0.0.1:5432/nohype \
             -e CONSENT_POLICY_VERSION=1 \
             -e EMAIL_BACKEND=django.core.mail.backends.console.EmailBackend \
             -e DEFAULT_FROM_EMAIL=hello@nohypeai.com \
             -e NEWSLETTER_PROVIDER=buttondown \
-            -e PLAYWRIGHT_BROWSERS_PATH=/opt/playwright-tools/browsers \
+            -e PLAYWRIGHT_BROWSERS_PATH=/ms-playwright \
             "$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