[add] progress & activity sync with web reader

templates/reader.html

@@ -1,6 +1,7 @@
 {{template "base.html" .}} {{define "title"}}Reader{{end}} {{define "header"}}
 <a href="../">Documents</a>
 {{end}} {{define "content"}}
+<script src="../../assets/reader/platform.js"></script>
 <script src="../../assets/reader/jszip.min.js"></script>
 <script src="../../assets/reader/epub.min.js"></script>
 <script src="../../assets/reader/index.js"></script>
@@ -8,6 +9,7 @@
 <div id="hiddden-viewer" class="hidden"></div>
 <script>
   let currentReader = new EBookReader("./file", {
+    id: "{{ .Data.ID }}",
     words: {{ .Data.Words }},
     pages: {{ .Data.Pages }},
     progress: "{{ .Progress }}",