feat: allow path params for verse navigation

app/books/page.tsx

@@ -16,7 +16,7 @@ type ChapterEntry = { totalVerses: number };
 type CantoEntry = { totalChapters: number; chapters: ChapterEntry[] };
 type LilaEntry = { totalChapters: number; chapters: ChapterEntry[] };
 
-interface BgMeta extends BookMeta {
+interface ChapterBookMeta extends BookMeta {
   totalChapters: number;
   chapters: ChapterEntry[];
 }
@@ -49,7 +49,7 @@ function buildBookList(allBooks: BookMeta[]): BookInfo[] {
     const author = data.author as string;
 
     if (slug === "bg") {
-      const bg = data as BgMeta;
+      const bg = data as ChapterBookMeta;
       const totalVerses = bg.chapters.reduce(
         (sum, ch) => sum + ch.totalVerses,
         0,
@@ -62,6 +62,20 @@ function buildBookList(allBooks: BookMeta[]): BookInfo[] {
         totalVerses,
         href: "/books/bg",
       });
+    } else if (slug === "sb1962") {
+      const sb62 = data as ChapterBookMeta;
+      const totalVerses = sb62.chapters.reduce(
+        (sum, ch) => sum + ch.totalVerses,
+        0,
+      );
+      books.push({
+        slug,
+        title,
+        author,
+        description: `${sb62.totalChapters} chapters · First Canto`,
+        totalVerses,
+        href: "/books/sb1962",
+      });
     } else if (slug === "sb") {
       const sb = data as SbMeta;
       const totalChapters = sb.cantos.reduce(