Upload and use PDFs and other files in chat without interruptions

File uploads in the AgentOS chat experience are now more reliable, restoring support for common formats such as PDFs. This ensures agents can consistently access and reason over user-provided documents during interactive sessions.

The fix removes a known source of friction in day-to-day usage and improves trust in chat-based workflows.

Why this matters:

Fewer broken interactions during live agent use
More predictable behavior for document-driven workflows
Better end-user experience in AgentOS

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