FIX: support case insensitive setting lookup (#795)

lib/ai_bot/tools/setting_context.rb

@@ -44,7 +44,7 @@ module DiscourseAi
         end
 
         def setting_name
-          parameters[:setting_name]
+          @setting_name ||= parameters[:setting_name].to_s.downcase.gsub(" ", "_")
         end
 
         def invoke

spec/lib/modules/ai_bot/tools/setting_context_spec.rb

@@ -30,6 +30,15 @@ RSpec.describe DiscourseAi::AiBot::Tools::SettingContext, if: has_rg? do
       expect(result[:context]).to include("moderators_view_emails")
     end
 
+    it "supports spaces and case insensitive setting name" do
+      result = setting_context("moderaTors View Emails").invoke
+
+      expect(result[:setting_name]).to eq("moderators_view_emails")
+
+      expect(result[:context]).to include("site_settings.yml")
+      expect(result[:context]).to include("moderators_view_emails")
+    end
+
     it "returns the context for plugin setting" do
       result = setting_context("ai_bot_enabled").invoke