🐛 (chat) Enable prefilledVariables in preview mode

Also make list values compatible

packages/schemas/features/chat/schema.ts

@@ -238,6 +238,18 @@ export const startPreviewChatInputSchema = z.object({
       'If set, it will override the typebot that is used to start the chat.'
     ),
   startFrom: startFromSchema.optional(),
+  prefilledVariables: z
+    .record(z.unknown())
+    .optional()
+    .describe(
+      '[More info about prefilled variables.](../../editor/variables#prefilled-variables)'
+    )
+    .openapi({
+      example: {
+        'First name': 'John',
+        Email: 'john@gmail.com',
+      },
+    }),
 })
 export type StartPreviewChatInput = z.infer<typeof startPreviewChatInputSchema>