use mcp source

lib/mcp/tools/create_template.rb

@@ -43,6 +43,7 @@ module Mcp
           account:,
           author: current_user,
           folder: account.default_template_folder,
+          source: :mcp,
           name: arguments['name'].to_s.presence || 'New Template',
           fields: [],
           schema: []

lib/mcp/tools/send_documents.rb

@@ -96,7 +96,7 @@ module Mcp
         submissions = Submissions.create_from_submitters(
           template:,
           user: current_user,
-          source: :api,
+          source: :mcp,
           submitters_order: 'random',
           submissions_attrs: { submitters: submitters },
           params: { 'send_email' => true, 'submitters' => submitters }