feat(reject-history): multi-pareto 3×2 grid with cross-filter linkage
Replace single-dimension Pareto dropdown with 6 simultaneous Pareto charts
(不良原因, PACKAGE, TYPE, WORKFLOW, 站點, 機台) in a responsive 3-column grid.
Clicking items in one Pareto cross-filters the other 5 (exclude-self logic),
and the detail table applies all dimension selections with AND logic.
Backend:
- Add batch-pareto endpoint (cache-only, no Oracle queries)
- Add _apply_cross_filter() with exclude-self pattern
- Extend view/export endpoints for multi-dimension sel_* params
Frontend:
- New ParetoGrid.vue wrapping 6 ParetoSection instances
- Simplify ParetoSection: remove dimension dropdown, keep TOP20 toggle
- Replace single-dimension state with paretoSelections reactive object
- Adaptive x-axis labels (font size, rotation, hideOverlap) for compact grid
- Responsive grid: 3-col desktop, 2-col tablet, 1-col mobile
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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