feat: add CountEntries to skip decryption for list --detail (#562)

* feat: add CountEntries to skip decryption for list --detail (#549)
* test: add CountEntries and countCategory tests at browser level
* fix: address review feedback on CountRows and countLocalStorage
* test: add CountRows unit tests

browser/chromium/extract_bookmark.go

@@ -51,3 +51,32 @@ func walkBookmarks(node gjson.Result, folder string, out *[]types.BookmarkEntry)
 		walkBookmarks(child, currentFolder, out)
 	}
 }
+
+func countBookmarks(path string) (int, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return 0, err
+	}
+	var count int
+	roots := gjson.GetBytes(data, "roots")
+	roots.ForEach(func(_, value gjson.Result) bool {
+		count += walkCountBookmarks(value)
+		return true
+	})
+	return count, nil
+}
+
+// walkCountBookmarks recursively counts URL nodes in the bookmark tree.
+func walkCountBookmarks(node gjson.Result) int {
+	count := 0
+	if node.Get("type").String() == "url" {
+		count++
+	}
+	children := node.Get("children")
+	if children.Exists() && children.IsArray() {
+		for _, child := range children.Array() {
+			count += walkCountBookmarks(child)
+		}
+	}
+	return count
+}