v0 Enables Support for .tgz File Attachments for Large Code Imports

Builders can now upload .tgz tarball files to v0, facilitating the import of entire existing projects or complex directories. This streamlines the process of bringing established codebases into the v0 sandbox for AI-driven modifications.

Why it matters: It simplifies the migration path for developers wanting to apply v0's AI capabilities to their existing legacy projects.