chore: Adds API for agent bot avatar upload (#8533)

Adds API for agent bot avatar upload
- accounts/agent_bot
- platform/agent_bot

app/controllers/api/v1/accounts/contacts_controller.rb

@@ -83,14 +83,14 @@ class Api::V1::Accounts::ContactsController < Api::V1::Accounts::BaseController
       @contact = Current.account.contacts.new(permitted_params.except(:avatar_url))
       @contact.save!
       @contact_inbox = build_contact_inbox
-      process_avatar
+      process_avatar_from_url
     end
   end
 
   def update
     @contact.assign_attributes(contact_update_params)
     @contact.save!
-    process_avatar if permitted_params[:avatar].present? || permitted_params[:avatar_url].present?
+    process_avatar_from_url
   end
 
   def destroy
@@ -174,7 +174,7 @@ class Api::V1::Accounts::ContactsController < Api::V1::Accounts::BaseController
     @contact = Current.account.contacts.includes(contact_inboxes: [:inbox]).find(params[:id])
   end
 
-  def process_avatar
+  def process_avatar_from_url
     ::Avatar::AvatarFromUrlJob.perform_later(@contact, params[:avatar_url]) if params[:avatar_url].present?
   end