feat: kb both volumes

app/books/page.tsx

@@ -21,6 +21,12 @@ interface ChapterBookMeta extends BookMeta {
   chapters: ChapterEntry[];
 }
 
+interface KbMeta extends BookMeta {
+  totalChapters: number;
+  description: string;
+  volumes: { number: number; totalChapters: number }[];
+}
+
 interface SbMeta extends BookMeta {
   totalCantos: number;
   cantos: CantoEntry[];
@@ -112,6 +118,16 @@ function buildBookList(allBooks: BookMeta[]): BookInfo[] {
         totalVerses,
         href: "/books/cc",
       });
+    } else if (slug === "kb") {
+      const kb = data as KbMeta;
+      books.push({
+        slug,
+        title,
+        author,
+        description: `${kb.totalChapters} chapters · 2 volumes`,
+        totalVerses: 0,
+        href: "/books/kb",
+      });
     }
   }
 
@@ -156,11 +172,13 @@ export default async function BooksPage() {
                 <CardContent>
                   <div className="flex items-center gap-3 text-sm">
                     <Badge variant="secondary">{book.description}</Badge>
-                    <ExtractedVerseCount
-                      count={book.totalVerses}
-                      label="extracted verses"
-                      className="text-muted-foreground"
-                    />
+                    {book.totalVerses > 0 && (
+                      <ExtractedVerseCount
+                        count={book.totalVerses}
+                        label="extracted verses"
+                        className="text-muted-foreground"
+                      />
+                    )}
                   </div>
                 </CardContent>
               </Card>