Labyrinth Scout integration (dormant)

Scout was designed as a security control plane Carina could report sanitized telemetry to, with Scout able to kill sessions via Redis. Scout is no longer deployed or offered as a product (it's now a personal research project) - this integration code is left in place but unused. There is no console to provision or pair to; do not set LABYRINTH_ENABLED=true expecting it to connect to anything.

Key files (dormant, not wired to anything live):

File	Role
src/security/scout-client.ts	Fire-and-forget event reporting
src/security/kill-switch-listener.ts	Redis kill channel
src/security/prompt-guard-middleware.ts	Input/output scanning
src/security/jit-credentials.ts	Just-in-time tool grants