feat(media): add admin media CRUD preview and storage cleanup

apps/admin/src/lib/media/s3-storage.ts

@@ -1,4 +1,4 @@
-import { PutObjectCommand, S3Client } from "@aws-sdk/client-s3"
+import { DeleteObjectCommand, PutObjectCommand, S3Client } from "@aws-sdk/client-s3"
 
 import { buildMediaStorageKey } from "@/lib/media/storage-key"
 
@@ -27,7 +27,7 @@ function parseBoolean(value: string | undefined): boolean {
   return value?.toLowerCase() === "true"
 }
 
-function resolveS3Config(): S3Config {
+export function resolveS3Config(): S3Config {
   const bucket = process.env.CMS_MEDIA_S3_BUCKET?.trim()
   const region = process.env.CMS_MEDIA_S3_REGION?.trim()
   const accessKeyId = process.env.CMS_MEDIA_S3_ACCESS_KEY_ID?.trim()
@@ -50,7 +50,7 @@ function resolveS3Config(): S3Config {
   }
 }
 
-function createS3Client(config: S3Config): S3Client {
+export function createS3Client(config: S3Config): S3Client {
   return new S3Client({
     region: config.region,
     endpoint: config.endpoint,
@@ -87,3 +87,17 @@ export async function storeUploadToS3(params: StoreS3UploadParams): Promise<Stor
 
   return { storageKey }
 }
+
+export async function deleteS3Object(storageKey: string): Promise<boolean> {
+  const config = resolveS3Config()
+  const client = createS3Client(config)
+
+  await client.send(
+    new DeleteObjectCommand({
+      Bucket: config.bucket,
+      Key: storageKey,
+    }),
+  )
+
+  return true
+}