增加pdf中划句或段ai伴读功能

src/hooks.ts

@@ -1,6 +1,7 @@
 import { initLocale } from "./utils/locale";
 import { createZToolkit } from "./utils/ztoolkit";
 import { registerLecturePane } from "./modules/lecture/ui/registerLecturePane";
+import { registerSelectionExplainPopup } from "./modules/lecture/ui/registerSelectionExplainPopup";
 import { registerChatPane, registerPrefs } from "./modules/ui/readerPane";
 import { registerPrefsScripts } from "./modules/ui/prefs";
 import { registerItemMenus } from "./modules/ui/itemMenu";
@@ -18,6 +19,7 @@ async function onStartup() {
   registerChatPane();
   registerLecturePane();
   registerReaderSelectionHook();
+  registerSelectionExplainPopup();
 
   await Promise.all(
     Zotero.getMainWindows().map((win) => onMainWindowLoad(win)),