Profile Token activity weekly/cumulative views show phantom activity cells

In Profile > Token activity, the Daily view appears correct, showing only one activity cell near Jul. However, when switching to Weekly or Cumulative, the chart displays a full vertical column of blue cells for Jul, suggesting activity on dates/weeks that do not exist.

Expected:
Weekly and Cumulative should only aggregate actual token activity data and should not render extra activity cells for empty or future periods.

Actual:
Weekly and Cumulative show multiple extra blue cells in the Jul column, while Daily only shows one real cell.

Environment:

• Codex App: 26.623.141536
• codex-cli: 0.142.5
• OS: macOS

<img width="784" height="176" alt="Image" src="https://github.com/user-attachments/assets/096feb96-1d99-46b7-b493-377fb24db675" />

<img width="783" height="176" alt="Image" src="https://github.com/user-attachments/assets/1f1a248d-f7e4-493c-b31c-43365ec9fbba" />