chore: regenerate OpenAPI types and remove type assertion hacks

Regenerated schema.d.ts from live backend — now includes slaCompliance
on ExecutionStats/RouteMetrics, filterMatched/duplicateMessage on
ProcessorNode, and all new dashboard endpoints (timeseries/by-app,
timeseries/by-route, punchcard, errors/top, app-settings).

Removed Record<string, unknown> casts that were working around the
stale schema.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/src/pages/DashboardTab/DashboardL1.tsx

@@ -142,7 +142,7 @@ function aggregateByApp(
 
     // SLA compliance: weighted average of per-route slaCompliance from backend
     const appSettings = settingsMap.get(appId);
-    const slaWeightedSum = routes.reduce((s, r) => s + ((r as Record<string, unknown>).slaCompliance as number ?? 100) * r.exchangeCount, 0);
+    const slaWeightedSum = routes.reduce((s, r) => s + (r.slaCompliance ?? 100) * r.exchangeCount, 0);
     const slaCompliance = totalExchanges > 0 ? slaWeightedSum / totalExchanges : 100;
 
     const errorCount = Math.round(totalFailed);
@@ -316,7 +316,7 @@ export default function DashboardL1() {
   );
 
   // Global SLA compliance from backend stats (exact calculation from executions table)
-  const globalSlaCompliance = (stats as Record<string, unknown>)?.slaCompliance as number ?? -1;
+  const globalSlaCompliance = stats?.slaCompliance ?? -1;
   const effectiveSlaCompliance = globalSlaCompliance >= 0 ? globalSlaCompliance : 100;
 
   // Active error count = distinct error types

ui/src/pages/DashboardTab/DashboardL2.tsx

@@ -292,7 +292,7 @@ export default function DashboardL2() {
       successRate: m.successRate,
       avgDurationMs: m.avgDurationMs,
       p99DurationMs: m.p99DurationMs,
-      slaCompliance: (m as Record<string, unknown>).slaCompliance as number ?? -1,
+      slaCompliance: m.slaCompliance ?? -1,
       sparkline: m.sparkline ?? [],
     })),
     [metrics],