feat: Add backend APIs for the bot metrics (#9031)

Co-authored-by: Pranav <pranav@chatwoot.com>

app/helpers/report_helper.rb

@@ -32,6 +32,14 @@ module ReportHelper
     (get_grouped_values resolutions).count
   end
 
+  def bot_resolutions_count
+    (get_grouped_values bot_resolutions).count
+  end
+
+  def bot_handoffs_count
+    (get_grouped_values bot_handoffs).count
+  end
+
   def conversations
     scope.conversations.where(account_id: account.id, created_at: range)
   end
@@ -49,6 +57,16 @@ module ReportHelper
                                                                                conversations: { status: :resolved }, created_at: range).distinct
   end
 
+  def bot_resolutions
+    scope.reporting_events.joins(:conversation).select(:conversation_id).where(account_id: account.id, name: :conversation_bot_resolved,
+                                                                               conversations: { status: :resolved }, created_at: range).distinct
+  end
+
+  def bot_handoffs
+    scope.reporting_events.joins(:conversation).select(:conversation_id).where(account_id: account.id, name: :conversation_bot_handoff,
+                                                                               created_at: range).distinct
+  end
+
   def avg_first_response_time
     grouped_reporting_events = (get_grouped_values scope.reporting_events.where(name: 'first_response', account_id: account.id))
     return grouped_reporting_events.average(:value_in_business_hours) if params[:business_hours]