## Summary
Document how agents should read Buzz’s semantic turn envelope. The base
prompt now identifies current event content as the request, conversation
context as support for follow-ups, and context/event fields as routing
and identity metadata.
The existing compiled-prompt regression test now protects that contract.
The lockfile also updates rustls to 0.23.45 to clear RUSTSEC-2026-0285
from the security gate.
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