Uses Playwright to drive Chromium when the primary requests-based
fetch fails (e.g., Cloudflare, JS-required pages). Hybrid approach:
try fast path first, fall back to Chromium only on failure.
Dockerfile: add playwright==1.52.0 pip package, run playwright
install-deps chromium + playwright install chromium to download
the browser and all system libraries.
scrape-recipe: add fetch_with_chromium() that tries Playwright
first, then chromium --headless --dump-dom as a subprocess fallback.
Modify main() to catch primary fetch errors and call Chromium
fallback before giving up.
