Replace put_flash with inline feedback for form saves:
- Media library: metadata save shows "Saved" checkmark
- Product show: storefront controls save shows "Saved" checkmark
- Newsletter campaign form: draft save shows "Saved" checkmark
Page-level outcomes (uploads, deletes, async operations) remain as
flash/banner messages — these are the correct pattern for non-form
actions.
Completes Task 4 of notification overhaul.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Delete utilities.css (701 lines / 24 KB of Tailwind utility clones)
- Add layout.css with admin-stack, admin-row, admin-cluster, admin-grid
primitives and gap variants (sm, md, lg, xl)
- Add transitions.css import and layout.css import to admin.css entry point
- Replace all Tailwind utility classes across 26 admin templates with
semantic admin-*/theme-*/page-specific CSS classes
- Replace all non-dynamic inline styles with semantic classes
- Add ~100 new semantic classes to components.css (analytics, dashboard,
order detail, settings, theme editor, generic utilities)
- Fix stray text-error → admin-text-error in media.ex
- Add missing .truncate definition to admin CSS
- Only remaining inline styles are dynamic data values (progress bars,
chart dimensions) and one JS.toggle target
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Sends the campaign to the admin's own email address as a preview,
with [Test] prefix in subject line. Uses the same HTML template
and formatting as real sends. Does not affect campaign status or
sent counts.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Subscribers with double opt-in confirmation, campaign composer with
draft/scheduled/sent lifecycle, admin dashboard with overview stats,
CSV export, and shop signup form wired into page builder blocks.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
