Added MidrandShop feature and spl;it extensions and healthchecks

LiteCharms.Features/HealthChecks/ShopQuartzHealthCheck.cs

@@ -0,0 +1,28 @@
+using static LiteCharms.Features.Extensions.Quartz;
+
+namespace LiteCharms.Features.HealthChecks;
+
+public class ShopQuartzHealthCheck(ISchedulerFactory schedulerFactory) : IHealthCheck
+{
+    public async Task<HealthCheckResult> CheckHealthAsync(HealthCheckContext context, CancellationToken cancellationToken = default)
+    {
+        try
+        {
+            var scheduler = await schedulerFactory.GetScheduler(ShopSchedulerName, cancellationToken);
+
+            if(scheduler == null) 
+                return HealthCheckResult.Unhealthy($"Scheduler with name '{ShopSchedulerName}' not found.");
+
+            if (!scheduler.IsStarted)
+                return HealthCheckResult.Unhealthy($"{ShopSchedulerName} Quartz scheduler is not running");
+
+            await scheduler.CheckExists(new JobKey(Guid.NewGuid().ToString()), cancellationToken);
+
+            return HealthCheckResult.Healthy($"{ShopSchedulerName} Quartz scheduler is ready");
+        }
+        catch (SchedulerException)
+        {
+            return HealthCheckResult.Unhealthy($"{ShopSchedulerName} Quartz scheduler cannot connect to the store");
+        }
+    }
+}