Ln 642 Layer Boundary Auditor

This L3 worker audits your codebase for architectural layer violations by reading your architecture.md and checking whether I/O code has leaked outside the infrastructure layer. It also catches cross-layer consistency problems like misplaced transaction boundaries and session ownership conflicts. The pattern coverage checks are smart, like verifying all HTTP calls go through your client abstraction rather than being scattered everywhere. If you're working on a layered architecture and want automated enforcement instead of relying on code review to catch violations, this does the tedious scanning work. One Snyk failure on the security audits, so check that before installing.