Fixes for using nested Agents, languse upgrade needed

[heresandyboy]

Summary

• Update langfuse to fix errors using nested agents
• Improve logger with extra data (datetime, filepath)
• Add return_direct to saml schema for SuperagentAgentTool

[vercel[bot]]

@heresandyboy is attempting to deploy a commit to the Mersenne Team on Vercel.

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[homanp]

@elisalimli is trying to run return_direct. Can you test this and see that it works properly?

[homanp]

@elisalimli is this ready?

[heresandyboy]

Hi, just finished testing this this morning, it does seem to be working well.