fix first online resevation

apps/api/src/lib/storage.ts

@@ -0,0 +1,35 @@
+import fs from 'fs'
+import path from 'path'
+import crypto from 'crypto'
+
+const STORAGE_ROOT = path.resolve(__dirname, 'storage')
+
+function getApiBase(): string {
+  return (process.env.API_URL ?? 'http://localhost:4000').replace(/\/$/, '')
+}
+
+export async function uploadImage(
+  buffer: Buffer,
+  folder: string,
+  publicId?: string
+): Promise<string> {
+  const folderPath = path.join(STORAGE_ROOT, folder)
+  fs.mkdirSync(folderPath, { recursive: true })
+
+  const filename = publicId
+    ? `${publicId}.jpg`
+    : `${crypto.randomBytes(16).toString('hex')}.jpg`
+
+  fs.writeFileSync(path.join(folderPath, filename), buffer)
+
+  return `${getApiBase()}/storage/${folder}/${filename}`
+}
+
+export async function deleteImage(imageUrl: string): Promise<void> {
+  const marker = '/storage/'
+  const idx = imageUrl.indexOf(marker)
+  if (idx === -1) return
+  const relative = imageUrl.slice(idx + marker.length)
+  const filePath = path.join(STORAGE_ROOT, relative)
+  if (fs.existsSync(filePath)) fs.unlinkSync(filePath)
+}