feat: strengthen P0 security and operations

Tiku.Infrastructure/Observability/WorkerTelemetry.cs

@@ -0,0 +1,37 @@
+using System.Diagnostics.Metrics;
+using System.Diagnostics;
+
+namespace Tiku.Infrastructure.Observability;
+
+public static class WorkerTelemetry
+{
+    public const string MeterName = "Tiku.Worker";
+    private static readonly Meter Meter = new(MeterName, "1.0.0");
+    private static readonly Counter<long> JobCounter = Meter.CreateCounter<long>("tiku.worker.jobs");
+    private static readonly Histogram<double> JobDuration = Meter.CreateHistogram<double>("tiku.worker.job.duration", "ms");
+    private static readonly Counter<long> ScanCounter = Meter.CreateCounter<long>("tiku.asset.security_scans");
+    private static readonly Histogram<double> ScanDuration = Meter.CreateHistogram<double>("tiku.asset.security_scan.duration", "ms");
+    private static readonly Counter<long> IterationCounter = Meter.CreateCounter<long>("tiku.worker.iterations");
+    private static readonly Histogram<double> IterationDuration = Meter.CreateHistogram<double>("tiku.worker.iteration.duration", "ms");
+
+    public static void RecordJob(string jobType, string status, double elapsedMilliseconds)
+    {
+        var tags = new TagList { { "job.type", jobType }, { "job.status", status } };
+        JobCounter.Add(1, tags);
+        JobDuration.Record(elapsedMilliseconds, tags);
+    }
+
+    public static void RecordScan(string status, double elapsedMilliseconds)
+    {
+        var tags = new TagList { { "scan.status", status } };
+        ScanCounter.Add(1, tags);
+        ScanDuration.Record(elapsedMilliseconds, tags);
+    }
+
+    public static void RecordIteration(string processor, bool succeeded, double elapsedMilliseconds)
+    {
+        var tags = new TagList { { "worker.processor", processor }, { "worker.succeeded", succeeded } };
+        IterationCounter.Add(1, tags);
+        IterationDuration.Record(elapsedMilliseconds, tags);
+    }
+}