Add Zillow and HAR photo extractors

skills/web-automation/scripts/real-estate-photo-common.test.mjs

@@ -0,0 +1,66 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+
+import { normalizeImageCandidates } from "./real-estate-photo-common.js";
+
+test("normalizeImageCandidates keeps distinct Zillow photo URLs and strips query strings", () => {
+  const result = normalizeImageCandidates(
+    [
+      {
+        url: "https://photos.zillowstatic.com/fp/abc123-p_e.jpg?set=1",
+        width: 1024,
+        height: 768,
+      },
+      {
+        url: "https://photos.zillowstatic.com/fp/abc123-p_e.jpg?set=2",
+        width: 1024,
+        height: 768,
+      },
+      {
+        url: "https://www.zillow.com/static/logo.png",
+        width: 120,
+        height: 40,
+      },
+    ],
+    {
+      hostIncludes: ["photos.zillowstatic.com"],
+      minWidth: 240,
+      minHeight: 180,
+    }
+  );
+
+  assert.deepEqual(result.map((item) => item.url), [
+    "https://photos.zillowstatic.com/fp/abc123-p_e.jpg",
+  ]);
+});
+
+test("normalizeImageCandidates filters tiny HAR page assets and keeps large photos", () => {
+  const result = normalizeImageCandidates(
+    [
+      {
+        url: "https://photos.har.com/123/main.jpg?size=large",
+        width: 1600,
+        height: 1200,
+      },
+      {
+        url: "https://cdn.har.com/icons/close.svg",
+        width: 24,
+        height: 24,
+      },
+      {
+        url: "data:image/png;base64,deadbeef",
+        width: 800,
+        height: 600,
+      },
+    ],
+    {
+      hostExcludes: ["doubleclick", "gstatic"],
+      minWidth: 240,
+      minHeight: 180,
+    }
+  );
+
+  assert.deepEqual(result.map((item) => item.url), [
+    "https://photos.har.com/123/main.jpg",
+  ]);
+});