refactor Configurations

Related to: #300

Author: sikutisa

src/AzureOpenAIProxy.ApiApp/Configurations/AzureSettings.cs

@@ -19,9 +19,4 @@ public class AzureSettings
     /// Gets or sets the <see cref="KeyVaultSettings"/> instance.
     /// </summary>
     public KeyVaultSettings KeyVault { get; set; } = new();
-
-    /// <summary>
-    /// Gets or sets the <see cref="StorageAccountSettings"/> instance.
-    /// </summary>
-    public StorageAccountSettings StorageAccount { get; set; } = new();
 }

src/AzureOpenAIProxy.ApiApp/Configurations/KeyVaultSettings.cs

@@ -16,7 +16,7 @@ public class KeyVaultSettings
     public string? VaultUri { get; set; }
 
     /// <summary>
-    /// Gets or sets the secret name.
+    /// Gets or sets the secret names.
     /// </summary>
-    public string? SecretName { get; set; }
+    public IDictionary<string, string> SecretNames { get; set; } = new Dictionary<string, string>();
 }