Models tab: per-model token counts do not update when switching All / 30d / 7d

Bug

On the usage dashboard, the Models view shows a per-model breakdown
(<input> in · <output> out and a percentage) for each model.

When toggling the time range buttons (All / 30d / 7d), only the
percentage values update. The absolute input/output token counts shown next to
each model stay identical across all three ranges, which is inconsistent with
the percentages.

Steps to reproduce

1. Open the usage dashboard.
2. Switch to the Models tab.
3. Click All, note the per-model <input> in · <output> out figures.
4. Click 30d, then 7d.

Expected

The per-model token counts should reflect only usage inside the selected
window, so the numbers shrink as the window narrows.

Actual

The per-model token counts are identical across All / 30d / 7d. Only the
percentage column changes.

Note

The bar chart above the breakdown does redraw correctly when the range
changes, so the issue appears to be limited to the per-model totals row.

Environment

• Claude desktop (macOS): 1.6259.1
• macOS: 26.4.1