fix: address Code Reviewer findings for Datadog/Sentry integration FRE-4806

P1: Load dd-trace before other modules via datadog-init.ts entry point
P1: Batch all CloudWatch metrics into single PutMetricDataCommand per request
P2: Deduplicate warning logs with else-if for high latency vs error
P3: Add response.ok check to Datadog log forwarding fetch
P3: Update getSentryHub() to use getCurrentScope() for Sentry SDK 8.x

Co-Authored-By: Paperclip <noreply@paperclip.ing>

packages/monitoring/src/datadog-init.ts

@@ -0,0 +1,8 @@
+import { getMonitoringConfig } from './config';
+import { initDatadog } from './datadog';
+import { initSentry } from './sentry';
+import { initDatadogLogs } from './datadog-logs';
+
+initDatadog();
+initSentry();
+initDatadogLogs();