Fix: Kafka replication factor hardcoded to 1 and No health check endpoints

VigilCareClinicalAPI/Infrastructure/ElasticsearchHealthCheck.cs

@@ -0,0 +1,20 @@
+using Elastic.Clients.Elasticsearch;
+using Microsoft.Extensions.Diagnostics.HealthChecks;
+
+public sealed class ElasticsearchHealthCheck : IHealthCheck
+{
+    private readonly ElasticsearchClient _client;
+
+    public ElasticsearchHealthCheck(ElasticsearchClient client) => _client = client;
+
+    public async Task<HealthCheckResult> CheckHealthAsync(
+        HealthCheckContext context, CancellationToken cancellationToken = default)
+    {
+        var response = await _client.PingAsync(cancellationToken);
+
+        if (response.IsValidResponse)
+            return HealthCheckResult.Healthy();
+
+        return HealthCheckResult.Unhealthy("Elasticsearch ping failed.");
+    }
+}