feat: add healthcheck for databases

SqlData/Persistence/DependencyInjection.cs

@@ -86,4 +86,15 @@ public static class DependencyInjection
             };
         }
     }
+
+    public static IHealthChecksBuilder AddDatabaseHealthCheck(this IHealthChecksBuilder healthChecksBuilder, DatabaseProvider dbProvider, string connection)
+    {
+        return dbProvider switch
+        {
+            DatabaseProvider.Mysql => healthChecksBuilder.AddMySql(connection, name: "MySql"),
+            DatabaseProvider.Sqlite => healthChecksBuilder.AddSqlite(connection, name: "Sqlite"),
+            DatabaseProvider.Postgresql => healthChecksBuilder.AddNpgSql(connection, name: "PostgreSQL"),
+            _ => throw new ArgumentException("Unsupported database provider", Enum.GetName(dbProvider))
+        };
+    }
 }