do not fix the cli the same links and image links

extension/background.js

@@ -567,13 +567,21 @@ function contentDispatch(funcName, args) {
     return document.querySelector(selector) !== null;
   }
   function extractLinks() {
-    return Array.from(document.querySelectorAll("a[href]")).map(a => ({
-      text: a.textContent.trim().slice(0, 100),
-      href: a.href,
-    }));
+    const seen = new Set();
+    return Array.from(document.querySelectorAll("a[href]")).reduce((links, a) => {
+      const href = a.href;
+      if (!href || seen.has(href)) return links;
+      seen.add(href);
+      links.push({
+        text: a.textContent.trim().slice(0, 100),
+        href,
+      });
+      return links;
+    }, []);
   }
   function extractImages() {
-    return Array.from(document.querySelectorAll("img")).map(img => {
+    const seen = new Set();
+    return Array.from(document.querySelectorAll("img")).reduce((images, img) => {
       const src =
         img.src ||
         img.getAttribute("data-src") ||
@@ -581,10 +589,13 @@ function contentDispatch(funcName, args) {
         img.getAttribute("data-original") ||
         (img.srcset ? img.srcset.split(",")[0].trim().split(" ")[0] : "") ||
         "";
+      if (!src || seen.has(src)) return images;
+      seen.add(src);
       const FAKE_ALT = new Set(["true", "false", "null", "undefined", "image", "img"]);
       const alt = img.alt && !FAKE_ALT.has(img.alt.trim().toLowerCase()) ? img.alt.trim() : "";
-      return { alt, src };
-    }).filter(img => img.src !== "");
+      images.push({ alt, src });
+      return images;
+    }, []);
   }
   function extractText() {
     return document.body.innerText;