ci(ts): install Playwright system deps and cache the browser

E2e failed to launch Chromium on the runner (missing libnspr4.so). Install
with --with-deps and cache ~/.cache/ms-playwright, since the primary download
host is unreachable from the runner and the fallback takes minutes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.gitea/workflows/ci-ts.yml

@@ -51,5 +51,11 @@ jobs:
       - run: pnpm typecheck
       - run: pnpm test
       - run: pnpm --filter @pipu/web build
-      - run: pnpm --filter @pipu/web exec playwright install chromium
+      # Браузер качается долго (основной CDN Microsoft из раннера недоступен) — кэшируем по lock-файлу.
+      # Системные библиотеки (libnspr4 и т.п.) в образе раннера нет, их ставит --with-deps на каждом прогоне.
+      - uses: actions/cache@v4
+        with:
+          path: ~/.cache/ms-playwright
+          key: playwright-${{ hashFiles('pnpm-lock.yaml') }}
+      - run: pnpm --filter @pipu/web exec playwright install --with-deps chromium
       - run: pnpm --filter @pipu/web test:e2e