Add Zillow and HAR photo extractors

skills/web-automation/scripts/zillow-photo-data.js

@@ -0,0 +1,59 @@
+export function extractZillowStructuredPhotoCandidatesFromNextDataScript(scriptText) {
+  if (typeof scriptText !== "string" || !scriptText.trim()) {
+    return [];
+  }
+
+  let nextData;
+  try {
+    nextData = JSON.parse(scriptText);
+  } catch {
+    return [];
+  }
+
+  const cacheText = nextData?.props?.pageProps?.componentProps?.gdpClientCache;
+  if (typeof cacheText !== "string" || !cacheText.trim()) {
+    return [];
+  }
+
+  let cache;
+  try {
+    cache = JSON.parse(cacheText);
+  } catch {
+    return [];
+  }
+
+  const out = [];
+
+  for (const entry of Object.values(cache)) {
+    const photos = entry?.property?.responsivePhotos;
+    if (!Array.isArray(photos)) continue;
+
+    for (const photo of photos) {
+      if (typeof photo?.url === "string" && photo.url) {
+        out.push({ url: photo.url });
+        continue;
+      }
+
+      const mixedSources = photo?.mixedSources;
+      if (!mixedSources || typeof mixedSources !== "object") continue;
+
+      let best = null;
+      for (const variants of Object.values(mixedSources)) {
+        if (!Array.isArray(variants)) continue;
+        for (const variant of variants) {
+          if (typeof variant?.url !== "string" || !variant.url) continue;
+          const width = Number(variant.width || 0);
+          if (!best || width > best.width) {
+            best = { url: variant.url, width };
+          }
+        }
+      }
+
+      if (best) {
+        out.push(best);
+      }
+    }
+  }
+
+  return out;
+}