performance optimization in library view

frontend/src/components/stories/SeriesSelector.tsx

@@ -2,7 +2,7 @@
 
 import { useState, useEffect, useRef } from 'react';
 import { seriesApi, storyApi } from '../../lib/api';
-import { Series, Story } from '../../types/api';
+import { Series } from '../../types/api';
 
 interface SeriesSelectorProps {
   value: string;

frontend/src/types/api.ts

@@ -5,7 +5,7 @@ export interface Story {
   authorId: string;
   authorName: string;
   contentHtml: string;
-  contentPlain: string;
+  contentPlain?: string; // Optional - only included in reading/detail views
   sourceUrl?: string;
   wordCount: number;
   seriesId?: string;