fix: make property optional in service options

Author: djMax

src/types.ts

@@ -144,9 +144,9 @@ export interface DelayLoadServiceStartOptions extends Omit<ServiceStartOptions,
 // Handled by service.configure
 export interface ServiceOptions {
   // Used to resolve code paths flexibly during dev/prod
-  codepath: string;
+  codepath?: string;
   // Will be either .ts or .js depending on the runtime environment
-  codeExtension: string;
+  codeExtension?: string;
 
   // If you need multiple configuration directories, pass them here
   // in the desired order (later trumps earlier)