v0.9.5

Fixed

• Align WorkspaceAwareBackend / NormalizedPathBackend edit with deepagents positional protocol so edit_file applies
• Honor replace_all through LocalFilesystem → workspace backends (was always forced off)
• Align grep / agrep with BackendProtocol so middleware content mode returns line text; keep output_mode keyword-only
• Implement download_files / upload_files on workspace backends (no longer raise NotImplementedError)

Full Changelog: v0.9.4...v0.9.5