Add Studio encrypted EMPF export and craft modes

[Davidobot]

Summary

Adds support for the current eufyMake Studio EMPF container format and exposes craft-mode metadata needed for relief/texture workflows.

• adds EmpfExportFormatEnum.studioEncrypted for AES-GCM wrapped eufyMake exports
• keeps plain ZIP-style EMPF export as the default for backwards compatibility
• adds CraftModeEnum with observed Studio subPrintType values
• writes subPrintType and matching tag_type metadata for craft modes such as relief texture

This is intended to help with #2 and newer Studio exports that no longer use only the plain ZIP-style format.

Validation

• npm run lint
• git diff --check
• smoke-tested encrypted export by decrypting the result back to a ZIP payload and checking relief texture metadata
• smoke-tested default plain ZIP export

Notes

This sets project-level craft-mode metadata. Some advanced relief/texture workflows may also require per-layer gray/texture cache data from Studio-generated files.