add library management

src/app/api/libraries/[id]/route.ts

@@ -0,0 +1,17 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { getLibrary, removeLibrary } from '@/lib/libraries'
+
+export async function DELETE(
+  _request: NextRequest,
+  { params }: { params: Promise<{ id: string }> }
+) {
+  const { id } = await params
+
+  const library = getLibrary(id)
+  if (!library) {
+    return NextResponse.json({ error: 'Library not found' }, { status: 404 })
+  }
+
+  removeLibrary(id)
+  return new NextResponse(null, { status: 204 })
+}