xatu-cbt

Deeply optimize a Xatu CBT transformation model query using live ClickHouse evidence. Use when the user wants performance analysis (not code edits) for `models/transformations/*.sql`, including dependency rendering, schema introspection, benchmark runs, and high-impact recommendations.

Deeply optimize a Xatu CBT transformation model query using live ClickHouse evidence. Use when performance analysis is requested for `models/transformations/*.sql`, including dependency rendering, schema introspection (`SHOW CREATE` with `_local` table checks), cache-aware benchmarking, and high-impact recommendations without editing model files.