feat(form-builder): FormFieldValidationRuleService + legacy backfill + snapshot + library row-copy

api/app/Http/Resources/FormBuilder/PublicFormSchemaResource.php

@@ -9,6 +9,7 @@ use App\Models\FormBuilder\FormField;
 use App\Models\FormBuilder\FormSchema;
 use App\Models\PersonTag;
 use App\Models\Scopes\OrganisationScope;
+use App\Services\FormBuilder\FormFieldValidationRuleService;
 use Illuminate\Http\Request;
 use Illuminate\Http\Resources\Json\JsonResource;
 
@@ -37,6 +38,7 @@ final class PublicFormSchemaResource extends JsonResource
         // already happens at PublicFormTokenResolver::resolve().
         $this->resource->loadMissing([
             'fields' => fn ($q) => $q->withoutGlobalScope(OrganisationScope::class),
+            'fields.validationRules',
             'sections' => fn ($q) => $q->withoutGlobalScope(OrganisationScope::class),
         ]);
 
@@ -79,7 +81,9 @@ final class PublicFormSchemaResource extends JsonResource
                     'available_tags' => $isTagPicker
                         ? $this->tagsForField($f, $availableTagsByCategory)
                         : null,
-                    'validation_rules' => $f->validation_rules,
+                    'validation_rules' => app(FormFieldValidationRuleService::class)->toJsonShape(
+                        $f->validationRules,
+                    ),
                     'is_required' => (bool) $f->is_required,
                     'display_width' => $f->display_width instanceof \BackedEnum ? $f->display_width->value : $f->display_width,
                     'conditional_logic' => $f->conditional_logic,