Update command feature arguments to optional

Author: intitni

Core/Sources/Preferences/CustomCommand.swift

@@ -1,12 +1,15 @@
 import Foundation
 
 public struct CustomCommand: Codable {
+    /// The custom command feature.
+    ///
+    /// Keep everything optional so nothing will break when the format changes.
     public enum Feature: Codable {
-        case promptToCode(prompt: String, continuousMode: Bool)
-        case chatWithSelection(prompt: String)
+        case promptToCode(prompt: String?, continuousMode: Bool?)
+        case chatWithSelection(prompt: String?)
         case customChat(systemPrompt: String?, prompt: String?)
     }
-    
+
     public var name: String
     public var feature: Feature
 }

Core/Sources/Service/SuggestionCommandHandler/WindowBaseCommandHandler.swift

@@ -294,7 +294,7 @@ extension WindowBaseCommandHandler {
             try await presentPromptToCode(
                 editor: editor,
                 prompt: prompt,
-                isContinuous: continuousMode
+                isContinuous: continuousMode ?? false
             )
         }
     }