Add autoscaling outcomes to Metrics (Refs #140)

src/routes/metrics/+page.svelte

@@ -11,6 +11,7 @@
     import SectionHeader from '$ui/components/primitives/SectionHeader.svelte';
     import Card from '$ui/components/primitives/Card.svelte';
     import MetricsSummary from '$ui/components/metrics/MetricsSummary.svelte';
+    import MetricsAutoscaling from '$ui/components/metrics/MetricsAutoscaling.svelte';
     import MetricsHeatmap from '$ui/components/metrics/MetricsHeatmap.svelte';
     import Tabs from '$ui/components/primitives/Tabs.svelte';
     import Button from '$ui/components/primitives/Button.svelte';
@@ -252,6 +253,7 @@
     {/if}
     <p class="range">{scopeLabel} · {format.period(report.since)} – {format.period(report.now)}</p>
     <MetricsSummary {report} />
+    <MetricsAutoscaling metrics={report.autoscaling} />
     {#if captured === 0}
         <Card>
             <EmptyState
@@ -392,6 +394,15 @@
             compare observations with the current policy; historical policy settings are not
             recorded.
         </p>
+        <p>
+            Autoscaling counts retained Provisioning operations whose finish time falls within this
+            window, including both endpoints. Successful creates and removals include operations
+            completed with warnings; failed and cancelled operations are counted separately. Pending
+            operations are excluded. Request-to-ready time measures completed creates from request
+            through verified readiness, including queue time, and does not establish browser
+            visibility or successful joins. Game and map scope use the operation’s recorded server
+            name, preserving map variants and history after server or policy removal.
+        </p>
         <p>
             Each periodic observation covers at most {ONLINE_MAX_MS / 1000} seconds. Longer collection
             gaps are excluded. Occupancy history defaults to 31 days; saved match retention is configured