Add TestTrafficChart_MinuteGranularityValidation to verify input
parameters including granularity, time range limits, and top_n
constraints. Include skipped placeholders for PostgreSQL-specific
aggregation tests.
Add group_by parameter to /admin/logs/stats endpoint supporting:
- group_by=model: aggregate stats per model with avg latency
- group_by=day: daily aggregation with token counts
- group_by=month: monthly aggregation with token counts
Also include request_body field in admin ListLogs response for
full visibility into logged requests.