Remove keycloak and add missing functions

Infrastructure/Configuration/InfrastructureStorageConfiguration.cs

@@ -6,16 +6,14 @@ namespace Musify.Infrastructure.Configuration
     {
         public const string SectionName = "InfrastructureStorage";
 
-        [Required]
         [Url]
+        [Required]
         public required string Address { get; set; }
 
         [Required]
-        [MinLength(3)]
         public required string AccessKey { get; set; }
 
         [Required]
-        [MinLength(8)]
         public required string SecretAccessKey { get; set; }
 
         [Required]

Infrastructure/Configuration/KeycloakConfiguration.cs

@@ -1,21 +0,0 @@
-using System.ComponentModel.DataAnnotations;
-
-namespace Musify.Infrastructure.Configuration
-{
-    public class KeycloakConfiguration
-    {
-        public const string SectionName = "Keycloak";
-
-        [Required]
-        public required string Address { get; set; }
-
-        [Required]
-        public required string Realm { get; set; }
-
-        [Required]
-        public required string Username { get; set; }
-
-        [Required]
-        public required string Password { get; set; }
-    }
-}

Infrastructure/Configuration/OpenTelemetryConfiguration.cs

@@ -6,8 +6,8 @@ namespace Musify.Infrastructure.Configuration
     {
         public const string SectionName = "OpenTelemetry";
 
-        [Required]
         [Url]
+        [Required]
         public required string OtlpEndpoint { get; set; }
     }
 }