- New fragment endpoint POST/GET /partage/fragments/draft.php:
saves all form fields to PHP session, excludes file/csrf/slug fields
GET returns JSON for JS hydration on page load
rotates both global CSRF and share CSRF tokens in sync
- form.php accepts optional $formExtraAttrs and $showAutosaveStatus:
allows injecting HTMX attributes and 'Brouillon enregistré' indicator
- renderShareLinkForm adds hx-post with change/input debounce trigger,
loads autosave-handler.js, hydrate fields from draft on page load
- Draft cleared on successful form submission in handleShareLinkSubmission
- autosave-handler.js now also updates share_link_token hidden input
when rotating CSRF token (partage form uses both csrf_token and share_link_token)
- Added .autosave-status CSS to form.css (was admin.css-only)
- Updated fragment routing to accept GET requests (needed for draft hydration)
