Retrieve usage data aggregated by day for the authenticated user, with timezone support.
Use a Bearer token for authentication. Submit the token using the Authorization
header: Authorization: Bearer <token>.
Return records on or after this timestamp.
"2021-01-01T00:00:00.000Z"
Return records before this timestamp.
"2021-12-31T23:59:59.999Z"
Timezone for date aggregation (e.g., "America/New_York", "Europe/London"). Defaults to UTC.
"America/New_York"