## Bulk Operations

### Bulk upload
`POST /files/bulk-upload`
Body: `{ items: [{ fileName, contentType, size, access?, assetId?, region? }] }` (max 20)
Returns: `{ items: [{ file, putUrl }] }`
SDK: `eb.bulkUploadFiles(items)`

### Bulk delete
`POST /files/bulk-delete`
Body: `{ fileIds: string[] }` (max 100)
Returns: `{ deleted: number }`
SDK: `eb.bulkDeleteFiles(fileIds)`