bbfc1b3278
Adds 30d (720h) and 90d (2160h) toggle buttons alongside the existing 24h/7d controls on all four KPI trend surfaces. No fetch-logic changes: the setters already recompute fromUtc and re-fetch, and the query service (T5) transparently routes windows > RollupThresholdHours to hourly rollups — so these windows are what actually exercise the rollup path. bUnit tests extend the Audit and SiteCalls trend harnesses to cover the new buttons. Claude-Session: https://claude.ai/code/session_01MtdgwpEeCUn6cUA5f1LMPj