- record id 0 with X-Session-Key manages deferrable relations: create, link, unlink, delete and pivot edits are held in deferred_bindings
- the record's create save applies relation bindings with the file bindings; an ineligible link is a 422 on the relation-manager field
- child forms upload files through .../records/{child}/files/{field} keyed by X-Child-Session-Key; the child save commits them
- boot refuses a deferrable relation with create whose related model no plugin lists in Models()
- loadChild finds a child with one query carrying the parent predicate; a foreign child is 404
- GET/PUT .../records/{child} and POST .../delete (all or nothing) per relation kind
- hasMany link adopts NULL-key rows and unlink clears the key; pending created children are never candidates
- link accepts pivot values for one id through the pivot.form whitelist; GET/PUT .../pivot/{child}
- Link and Unlink share linkRelated/unlinkRelated for the deferred commit
- RelationContract gains Kind (empty is belongsToMany) and ForeignKey, with kind-aware boot checks
- manage.form, view.form and pivot.form compile against the related or pivot model; $/ paths resolve inside the plugin
- view toolbarButtons accept create|update|delete|link|unlink, each the capability of its routes
- POST .../relations/{name}/records creates a child through the manage form; the server sets the hasMany key
- relation schema carries kind, deferrable and the localized forms; 17 new relation message keys in en and pl
- docs/backend: admin controllers, forms, lists and filters, relation
manager, users and permissions, settings, partials and widgets, admin SPA
- docs/services: storage, outbound HTTP, realtime, Web Push, search, parity
testing and the Frontend and AJAX (not provided) page
- Examples for cabana (with testdata/docs YAML), fetchguard, lighthouse and
its centrifugo driver, flare, beachcomber and typesense, tide; lighthouse
and beachcomber TestDocs* regions run on their Postgres harnesses
- concept map rows link their guide pages and the not-provided rows the
Frontend and AJAX page; index lists Backend, Database and Services
- TestDocsRequiredPages asserts the D-08 section order
