feat: add pagination

app/api/books/[book]/verses/route.ts

@@ -1,8 +1,6 @@
 import { NextResponse } from "next/server";
 import { prisma } from "@/lib/db";
 
-const DEFAULT_PAGE_SIZE = 20;
-
 export async function GET(
   req: Request,
   { params }: { params: Promise<{ book: string }> },
@@ -11,6 +9,7 @@ export async function GET(
   const url = new URL(req.url);
   const division = url.searchParams.get("division");
   const chapterStr = url.searchParams.get("chapter");
+  const verseStr = url.searchParams.get("verse");
   const indexOnly = url.searchParams.get("indexOnly") === "true";
   const pageStr = url.searchParams.get("page");
   const limitStr = url.searchParams.get("limit");
@@ -31,8 +30,21 @@ export async function GET(
     where.division = division;
   }
 
+  // --- Single verse mode: ?verse=N ---
+  if (verseStr) {
+    const verseNum = parseInt(verseStr);
+    const verse = await prisma.verse.findFirst({
+      where: { ...where, verse: verseNum },
+    });
+
+    if (!verse) {
+      return NextResponse.json({ error: "Verse not found" }, { status: 404 });
+    }
+
+    return NextResponse.json(verse);
+  }
+
   // --- Index-only mode: return lightweight verse list for the sidebar ---
-  // Returns all verses but only the fields needed for navigation
   if (indexOnly) {
     const verses = await prisma.verse.findMany({
       where,
@@ -49,10 +61,7 @@ export async function GET(
 
   // --- Paginated mode: return full verse data in pages ---
   const page = Math.max(1, parseInt(pageStr || "1"));
-  const limit = Math.min(
-    100,
-    Math.max(1, parseInt(limitStr || String(DEFAULT_PAGE_SIZE))),
-  );
+  const limit = Math.min(100, Math.max(1, parseInt(limitStr || "20")));
   const skip = (page - 1) * limit;
 
   const [verses, total] = await Promise.all([