19645a34cf
Implement records mode (long-format view) when drilling into aggregated cells. Key changes: - DrillIntoCell now creates views with _Index on Row and _Dim on Column - GridLayout detects records mode and builds a records list instead of cross-product row/col items - Added records_display() to render individual cell values in records mode - GridWidget and CSV export updated to handle records mode rendering - category_names() now includes virtual categories (_Index, _Dim) - Tests updated to reflect virtual categories counting toward limits Co-Authored-By: fiddlerwoaroof/git-smart-commit (unsloth/Qwen3.5-35B-A3B-GGUF:Q5_K_M)