fix(ci): install playwright linux deps and pin integration runner

.gitea/workflows/cicd-tests.yaml

@@ -270,8 +270,8 @@ jobs:
 
   integration-tests:
     name: Integration Tests
-    # Use ubuntu-act runner pool for consistent availability.
-    runs-on: ubuntu-act
+    # Pin integration tests to high-memory worker to reduce setup-stage runner churn.
+    runs-on: ubuntu-act-8gb
     timeout-minutes: 20
     needs: [setup, backend-tests]
     steps:

Dockerfile.cicd-base

@@ -62,6 +62,18 @@ RUN apt-fast update && apt-fast install -y \
     software-properties-common \
     build-essential \
     openssh-client \
+    # Playwright Chromium runtime dependencies (Linux)
+    libnspr4 \
+    libnss3 \
+    libatk1.0-0 \
+    libatspi2.0-0 \
+    libxcomposite1 \
+    libxdamage1 \
+    libxfixes3 \
+    libxrandr2 \
+    libgbm1 \
+    libxkbcommon0 \
+    libasound2 \
     tzdata \
     && rm -rf /var/lib/apt/lists/*