Improve Codebase Architecture

Walks your codebase looking for shallow modules (where the interface is almost as complex as the implementation) and suggests deepening refactors to improve testability and AI navigation. It reads your CONTEXT.md for domain language and checks ADRs to avoid relitigating past decisions. You get an HTML report with before/after diagrams, ranked by whether fixing each issue would actually concentrate complexity or just move it around. Pick one and it'll grill you on the design, updating your context docs and proposing new ADRs inline as the conversation firms up. Useful when you know something feels coupled or hard to test but can't quite see the seam.