Block images/CSS/fonts in Playwright to cut ~75% bandwidth

cf.bstatic.com (images + CSS CDN) was consuming 1.5 GB per scrape run.
Added route interception to abort image, stylesheet, font, and media
resources, plus pure tracking domains. The DOM extraction only reads
HTML attributes — no visual resources are needed.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/services/scraper_backends/playwright_hotel_page.py

@@ -55,6 +55,39 @@ _VIEWPORTS = [
     {'width': 1600, 'height': 900},
 ]
 
+# Resource types to abort — we only need the DOM and JS execution.
+# Images, stylesheets, and fonts are served from cf.bstatic.com and account
+# for ~75% of bandwidth; aborting them saves ~1.5 GB per scrape run.
+_BLOCK_RESOURCE_TYPES = {'image', 'stylesheet', 'font', 'media'}
+
+# Pure tracking/analytics domains with no effect on DOM or JS prices rendering.
+_BLOCK_DOMAINS = {
+    'cdn.cookielaw.org',
+    'geolocation.onetrust.com',
+    'graph.facebook.com',
+    'platform-lookaside.fbsbx.com',
+    'lh3.googleusercontent.com',
+    'maps.googleapis.com',
+    'web-perf.booking.com',
+    'sink.gw.booking.com',
+    'otel-gw.booking.com',
+}
+
+
+async def _route_handler(route, request):
+    if request.resource_type in _BLOCK_RESOURCE_TYPES:
+        await route.abort()
+        return
+    try:
+        host = request.url.split('/')[2].split(':')[0]
+    except IndexError:
+        host = ''
+    if host in _BLOCK_DOMAINS:
+        await route.abort()
+        return
+    await route.continue_()
+
+
 # Injected into every new context to mask headless/webdriver signals.
 _STEALTH_SCRIPT = """
 Object.defineProperty(navigator, 'webdriver', {get: () => undefined});
@@ -250,6 +283,7 @@ class PlaywrightHotelPageBackend(ScraperBackend):
                 **self._proxy_kwargs(session_id),
             )
             await self._context.add_init_script(_STEALTH_SCRIPT)
+            await self._context.route('**/*', _route_handler)
             self._requests_on_context = 0
             logger.debug(
                 f"Opened new browser context ua=…{ua[-30:]} viewport={viewport['width']}x{viewport['height']}"