Add a saved_views table (page images|library, trimmed 1-100 character
name, whitelisted JSON state of at most 4 KB, position, timestamps)
installed through the same validated-savepoint migration as image
favorites. It is optional in old backups and required in a migrated
restore stage; restore rejects a tampered definition, extra indexes and
any row that would fail write validation.
Routes under /prompt_manager/saved-views: GET lists views by position,
POST {page,name,state} returns 201 {success, view}, PATCH /{id} {name}
renames and DELETE /{id} removes, both 404 for an unknown id. The state
must hold exactly the page's toolbar and Refine-this-view keys (Images:
q, category, sort, source, folder, media, tags; Library: q, category,
sort, tags) with their types and sort/media values; anything else is a
400.
Refs #249
Vito Sansevero
daa41ff6cc