Create website campaign draft

Create a DRAFT campaign for sites from list_websites (one project), with the website sequence autopilot's affiliate lane sends unless you pass steps, and an optional schedule. The copy must pass the same check enrolment runs (rendered for a sample site: no links, bare domains, stock phrases, unknown tokens or empty offer), else nothing is created. Website copy personalises with tokens such as {{greeting}}, {{opener}}, {{tease_pitch}}, {{offer_pitch}} and {{signoff}}: get_campaign shows a campaign's templates and preview_campaign_step renders one for a site. DRAFT ONLY: nothing is enrolled or sent; launch_campaign (guarded) starts it.