Add Gitea GUI smoke test

.gitea/workflows/gui-smoke.yml

@@ -0,0 +1,87 @@
+name: GUI Smoke Test
+
+on:
+  push:
+    branches:
+      - master
+      - main
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  gui-smoke:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "24"
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build web app
+        run: npm run build
+
+      - name: Install Chromium for smoke test
+        run: npx --yes @playwright/test@1.56.1 install --with-deps chromium
+
+      - name: Start preview server
+        shell: bash
+        run: |
+          npm run preview -- --host 127.0.0.1 --port 4173 > preview.log 2>&1 &
+          echo "$!" > preview.pid
+
+          for attempt in {1..30}; do
+            if curl --fail --silent --show-error http://127.0.0.1:4173 > /dev/null; then
+              echo "Preview server is ready."
+              exit 0
+            fi
+            sleep 1
+          done
+
+          echo "Preview server did not become ready."
+          cat preview.log
+          exit 1
+
+      - name: Run GUI smoke test
+        shell: bash
+        run: |
+          cat > gui-smoke.spec.ts <<'EOF'
+          import { expect, test } from "@playwright/test";
+
+          test("home GUI renders in browser", async ({ page }) => {
+            await page.goto("http://127.0.0.1:4173/", { waitUntil: "networkidle" });
+            await expect(page.getByText("Nexus Overhaul")).toBeVisible();
+            await expect(page.getByRole("heading", { name: "MOBA Interface Foundation" })).toBeVisible();
+            await expect(page.getByRole("link", { name: "Play Prototype" })).toBeVisible();
+            await expect(page.getByText("Status: local prototype")).toBeVisible();
+            await page.screenshot({ path: "gui-smoke-home.png", fullPage: true });
+          });
+          EOF
+
+          npx --yes @playwright/test@1.56.1 test gui-smoke.spec.ts --browser=chromium --reporter=line
+
+      - name: Stop preview server
+        if: always()
+        shell: bash
+        run: |
+          if [ -f preview.pid ]; then
+            kill "$(cat preview.pid)" 2>/dev/null || true
+          fi
+
+      - name: Upload GUI smoke artifacts
+        if: always()
+        uses: actions/upload-artifact@v3
+        with:
+          name: gui-smoke-artifacts
+          path: |
+            gui-smoke-home.png
+            preview.log
+            playwright-report/
+            test-results/
+          if-no-files-found: ignore