Mike Swanson b3e8f32734 feat(agent): derive + report deterministic machine_uid (SPEC-004 Task 1) ...

Agent now derives a recomputable, opaque machine_uid (Windows: SHA-256 of the OS
MachineGuid at HKLM\SOFTWARE\Microsoft\Cryptography\MachineGuid -> muid_<hex>;
non-Windows / registry-failure: persisted random UUID, warn-logged). Raw GUID
never exposed; OnceLock-cached. Reported ALONGSIDE agent_id (unchanged) on
AgentStatus (new additive proto field 12) and in the connect handshake query.
This is the stable identity that fixes config-loss duplicate registrations
(DESKTOP-I66IM5Q x9); server-side dedup keying that consumes it is SPEC-004
Task 2. Non-breaking, isolated. 5 unit tests; cargo fmt/clippy(-D warnings)/test
green on GURU-5070.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-05-30 21:23:11 -07:00

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