- Add BundleManifest with dsl_filename for 100% tree ID restoration
- Implement two-step import flow: prepare (get upload URL) + confirm
- Use sandbox for zip extraction and file upload via presigned URLs
- Store import session in Redis with 1h TTL
- Add SandboxUploadItem for symmetric download/upload API
- Remove legacy source_zip_extractor, inline logic in service
- Update frontend to use new prepare/confirm API flow
- Introduced `GetUploadUrlPayload` and `BatchUploadPayload` models for handling file uploads.
- Implemented `AppAssetFileUploadUrlResource` for generating pre-signed upload URLs.
- Added `AppAssetBatchUploadResource` to support batch creation of asset nodes from a tree structure.
- Enhanced `AppAssetService` with methods for obtaining upload URLs and batch creation of assets.
- Removed checksum handling from file creation to streamline the process.
- Introduced AppBundleService for managing app bundle publishing and importing, integrating workflow and asset services.
- Added methods for exporting app bundles as ZIP files, including DSL and asset management.
- Implemented source zip extraction and validation to enhance asset import processes.
- Refactored asset packaging to utilize AssetZipPackager for improved performance and organization.
- Enhanced error handling for bundle format and security during import operations.
