- FormFieldBindingMergeStrategy::nullWinnerBehaviour() and
isValidForScalarTargets() encode the per-strategy null-winner matrix
(RFC Q7) and the collection-only restriction (RFC V1).
- ResolvedBinding/BindingApplicationResult/BindingPassResult readonly
DTOs for the binding pipeline. Construction-time validation for
trust level. Apply-status derived from result aggregate.
Note: the existing enum is named FormFieldBindingMergeStrategy (not
MergeStrategy as the prompt sketched). Methods added to it directly.
Refs: RFC-WS-6.md §3 (Q4, Q7), §4 (V1)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Lands the v1.0 purpose registry (WS-2 of the consolidation sprint) as a
first-class concept: a `PurposeDefinition` value object, a
`PurposeRegistry` service keyed by slug, and a declarative
`config/form_builder/purposes.php` registry with exactly the seven
purposes from ARCH-CONSOLIDATION §6.4.
Also rebuilds the morph-map in `AppServiceProvider::boot` into three
labelled blocks: (1) domain subject types derived from
`PurposeRegistry::allSubjectTypes()`, (2) non-purpose domain types
hardcoded with comments (form_schemas owner_types, activity-log
subjects), (3) framework types (spatie/activitylog; Sanctum stays
absent per addendum Q4).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
