Summary: v0 adds file attachments and Pro context limits

Why It Matters: The tool now lets users upload their own files to give the AI more information. It also shows clear limits for the Pro version to encourage users to pay for more space.

What Changed:

• Added a "v0 Pro" label to the main creation area.
• Added a new feature to drop files as attachments for better context.
• Added a warning message when the maximum context limit is reached.
• Updated the template gallery with new featured items like "Supabase Starter" and "Calendar App."