DAC turns dashboards into YAML, TSX

This is a practical BI workflow shift: dashboards become source-controlled artifacts instead of click-only objects.

• –YAML covers plain declarative dashboards; TSX handles dynamic layouts, loops, and conditionals.
• –The semantic layer centralizes metrics and dimensions so teams, and agents, stop rewriting the same SQL logic.
• –Validation and local serve modes make dashboards reviewable in PRs and reproducible across environments.
• –The Codex integration is the interesting part: it turns dashboard authoring into a tool-using workflow, not a manual UI exercise.