feat(kpihistory): add 30d/90d trend windows to Audit/SiteCalls/Notifications/Health (plan #22 T7)

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

tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Pages/SiteCallsReportPageTests.cs

@@ -590,6 +590,31 @@ public class SiteCallsReportPageTests : BunitContext
             Assert.True(_kpiHistory.ReceivedCalls().Count() > afterExpand));
     }
 
+    [Fact]
+    public void TrendsSection_LongRangeWindows_RenderAndReloadSeries()
+    {
+        // The 30d/90d buttons (plan #22 T7) render alongside 24h/7d and clicking
+        // one re-loads the series — the query service then routes the long window
+        // to hourly rollups transparently.
+        var cut = Render<SiteCallsReportPage>();
+        cut.WaitForState(() => cut.Markup.Contains("ERP.GetOrder"));
+
+        cut.Find("[data-test='site-calls-trends-toggle']").Click();
+        cut.WaitForAssertion(() => Assert.NotEmpty(cut.FindAll("[data-test^='kpi-trend-']")));
+
+        // Both long-range buttons are present in the toggle group.
+        Assert.Contains(cut.FindAll("button"), b => b.TextContent.Trim() == "30d");
+        Assert.Contains(cut.FindAll("button"), b => b.TextContent.Trim() == "90d");
+
+        var afterExpand = _kpiHistory.ReceivedCalls().Count();
+
+        // Switch the window to 90d — the series re-load (another batch of calls).
+        cut.FindAll("button").First(b => b.TextContent.Trim() == "90d").Click();
+
+        cut.WaitForAssertion(() =>
+            Assert.True(_kpiHistory.ReceivedCalls().Count() > afterExpand));
+    }
+
     [Fact]
     public void TrendsSection_WhenKpiHistoryThrows_PageStillRenders()
     {