v1.2 depth expansion

Problem

The v1.0 extension covers the core edit-validate-preview loop but lacks depth in areas that usage data and retention analysis will reveal as high-value: advanced chart interactions (drill-down, filtering), multi-file dashboard composition, cross-referencing between YAML definitions and dbt model lineage, or richer Copilot-assisted authoring flows. Without expanding depth in the directions that actual usage patterns demand, the extension remains a "good enough" tool that users tolerate rather than one that drives retention and advocacy. Prioritization must be data-driven — based on observed usage, drop-off points, and feature requests — not speculative.

Context

Possible Solutions

Plan

Implementation Progress

Review Feedback

• Review cleared