chore: 并入 iotlcm-worker-svr 历史到 worker-svr/（原提交 96f0f4e）

worker-svr/internal/model/worker_diagnostic.go

@@ -0,0 +1,8 @@
+package model
+
+// WorkerDiagnosticMessage verifies the Admin-to-Worker RabbitMQ path.
+type WorkerDiagnosticMessage struct {
+	TraceID string `json:"traceId"`
+	SentAt  int64  `json:"sentAt"`
+	Message string `json:"message"`
+}