fix(core): gql file upload (#9134)

packages/frontend/graphql/export-gql-plugin.cjs

@@ -138,7 +138,7 @@ module.exports = {
                     if (schema.getType(type)?.name === 'Upload') return true;
                     const typeDef = schema.getType(type);
                     const fields = typeDef.getFields?.();
-                    if (!fields || !fields.length) return false;
+                    if (!fields || typeof fields !== 'object') return false;
                     for (let field of Object.values(fields)) {
                       let type = field.type;
                       while (type.ofType) {

packages/frontend/graphql/src/graphql/index.ts

@@ -188,7 +188,7 @@ export const createCopilotMessageMutation = {
   id: 'createCopilotMessageMutation' as const,
   operationName: 'createCopilotMessage',
   definitionName: 'createCopilotMessage',
-  containsFile: false,
+  containsFile: true,
   query: `
 mutation createCopilotMessage($options: CreateChatMessageInput!) {
   createCopilotMessage(options: $options)