a1b17dc9af
Removes unused methods (sum_matching, get_mut, item_by_name, item_index, top_level_groups, is_group_collapsed, show_item) and unused constants (LABEL_THRESHOLD, MIN_COL_WIDTH). The sum_matching tests in model.rs were bypassing the formula evaluator entirely. Replaced them with equivalent tests that call evaluate() against the existing Total = SUM(Revenue) formula, exercising the real aggregation code path. Also fixes a compile error in view.rs prop_tests where View/Axis imports and a doc comment were incorrectly commented out. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>