A rebuilt campaigns experience: create modal, calendar, smart sending and follow-ups

Building and sending a campaign is now faster and clearer. Start from a new Create-campaign dialog (name it, tag it, begin blank or from a saved template), then move through a streamlined three-step flow - Recipients, Message, Review - with a progress bar at the top. The campaigns list gets a proper workspace: search and filter by status, tag, A/B test or archived, flip between a List and a Calendar view of what's scheduled and sent, and see open and click rates at a glance. Turn on Smart Sending and anyone who already got a campaign from you in the last several hours is automatically skipped, so a busy week doesn't fatigue the same people. Add a follow-up email and Solstral will automatically resend to everyone who didn't open, a set time after the campaign finishes - a proven way to lift total opens. The Review step now groups everything into Recipients, Message and Tracking sections with clear checks and a one-click Edit back to any step, and a new Audit campaign button runs an AI pass over your subject, preview and copy for concrete suggestions before you hit send. The email builder got a polish too: an icon-based block palette you drag or click, a ＋ Dynamic tag dropdown that inserts personalization at your cursor (grouped by your audience's own fields), and a cleaner settings panel with collapsible groups. Personalization now uses object-agnostic {{recipient.field}} tags, so merge tags read correctly even when a campaign targets a custom object with no Contact.