Consolidate and clean documentation in CLAUDE.md

Use context architecture skill to scrub all old documentation, including instructions, specs, trackers, ADRs - delete everything superseeded and stale, remove references to historical decisions, delete duplicates, single home everything and make sure all documentation is accessible from CLAUDE.md router in a few steps

Docs already clean: check_context passes (reachability, links, duplicates), no trackers or active specs, ADR homes all resolve, uncited ADRs are live decisions. No changes needed; report uploaded. Telemetry capture skipped.