Complete BookSelector onSearchClick prop destructuring fix

- **Props destructured**: onSearchClick added to BookSelector parameter list
- **Build error eliminated**: TS cannot find name 'onSearchClick' resolved
- **Docker build ready**: All TypeScript errors cleared
- **Search functionality complete**: Prop chain from header → App.tsx → components working

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frontend/src/components/BookSelector.tsx

@@ -12,7 +12,7 @@ interface BookSelectorProps {
   onSearchClick?: () => void;
 }
 
-const BookSelector: React.FC<BookSelectorProps> = ({ books, onBookSelect, formatBookName, user, onFavoriteChange, version = 'esv', onBack }) => {
+const BookSelector: React.FC<BookSelectorProps> = ({ books, onBookSelect, formatBookName, user, onFavoriteChange, version = 'esv', onBack, onSearchClick }) => {
   const [favorites, setFavorites] = useState<Set<string>>(new Set());
   const [loading, setLoading] = useState(false);