feat: registration form fields, section preferences, tag sync & schema updates

Implement EAV system for dynamic event-specific registration fields
with organisation-level templates, person section preferences with
priority ranking, and TagSyncService for deferred tag_picker sync.

New tables: registration_field_templates, registration_form_fields,
person_field_values, person_section_preferences.
New columns: persons.remarks, events.registration_show_section_preferences,
events.registration_show_availability.

58 tests, 126 assertions — all 432 tests pass (zero regressions).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

api/app/Http/Resources/Api/V1/EventResource.php

@@ -30,6 +30,8 @@ final class EventResource extends JsonResource
             'registration_banner_url' => $this->registration_banner_url,
             'registration_welcome_text' => $this->registration_welcome_text,
             'registration_logo_url' => $this->registration_logo_url,
+            'registration_show_section_preferences' => $this->registration_show_section_preferences,
+            'registration_show_availability' => $this->registration_show_availability,
             'is_festival' => $this->resource->isFestival(),
             'is_sub_event' => $this->resource->isSubEvent(),
             'is_flat_event' => $this->resource->isFlatEvent(),

api/app/Http/Resources/Api/V1/PersonFieldValueResource.php

@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Resources\Api\V1;
+
+use App\Enums\RegistrationFieldType;
+use App\Models\PersonTag;
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+final class PersonFieldValueResource extends JsonResource
+{
+    public function toArray(Request $request): array
+    {
+        $field = $this->registrationFormField;
+
+        return [
+            'field_slug' => $field?->slug,
+            'field_label' => $field?->label,
+            'field_type' => $field?->field_type?->value,
+            'value' => $this->value,
+            'selected_options' => $this->selected_options,
+            'tag_names' => $this->when(
+                $field?->field_type === RegistrationFieldType::TAG_PICKER && !empty($this->selected_options),
+                function () {
+                    return PersonTag::whereIn('id', $this->selected_options ?? [])
+                        ->pluck('name')
+                        ->all();
+                }
+            ),
+        ];
+    }
+}

api/app/Http/Resources/Api/V1/PersonResource.php

@@ -23,6 +23,7 @@ final class PersonResource extends JsonResource
             'status' => $this->status,
             'is_blacklisted' => $this->is_blacklisted,
             'admin_notes' => $this->admin_notes,
+            'remarks' => $this->remarks,
             'custom_fields' => $this->custom_fields,
             'created_at' => $this->created_at->toIso8601String(),
             'crowd_type' => new CrowdTypeResource($this->whenLoaded('crowdType')),
@@ -53,6 +54,8 @@ final class PersonResource extends JsonResource
                     'added_by_user_id' => $this->pivot->added_by_user_id,
                 ]
             ),
+            'field_values' => PersonFieldValueResource::collection($this->whenLoaded('fieldValues')),
+            'section_preferences' => PersonSectionPreferenceResource::collection($this->whenLoaded('sectionPreferences')),
             'tags' => $this->when(
                 $this->user_id && $this->relationLoaded('user'),
                 function () {

api/app/Http/Resources/Api/V1/PersonSectionPreferenceResource.php

@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Resources\Api\V1;
+
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+final class PersonSectionPreferenceResource extends JsonResource
+{
+    public function toArray(Request $request): array
+    {
+        $section = $this->whenLoaded('festivalSection');
+
+        return [
+            'festival_section_id' => $this->festival_section_id,
+            'priority' => $this->priority,
+            'section_name' => $this->when(
+                $this->relationLoaded('festivalSection'),
+                fn () => $this->festivalSection?->name
+            ),
+            'section_icon' => $this->when(
+                $this->relationLoaded('festivalSection'),
+                fn () => $this->festivalSection?->icon
+            ),
+            'section_category' => $this->when(
+                $this->relationLoaded('festivalSection'),
+                fn () => $this->festivalSection?->category
+            ),
+        ];
+    }
+}

api/app/Http/Resources/Api/V1/RegistrationFieldTemplateResource.php

@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Resources\Api\V1;
+
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+final class RegistrationFieldTemplateResource extends JsonResource
+{
+    public function toArray(Request $request): array
+    {
+        return [
+            'id' => $this->id,
+            'organisation_id' => $this->organisation_id,
+            'label' => $this->label,
+            'slug' => $this->slug,
+            'field_type' => $this->field_type->value,
+            'options' => $this->options,
+            'tag_category' => $this->tag_category,
+            'is_required' => $this->is_required,
+            'is_filterable' => $this->is_filterable,
+            'is_portal_visible' => $this->is_portal_visible,
+            'is_admin_only' => $this->is_admin_only,
+            'section' => $this->section,
+            'help_text' => $this->help_text,
+            'sort_order' => $this->sort_order,
+            'is_system' => $this->is_system,
+            'is_active' => $this->is_active,
+            'created_at' => $this->created_at->toIso8601String(),
+            'updated_at' => $this->updated_at->toIso8601String(),
+        ];
+    }
+}

api/app/Http/Resources/Api/V1/RegistrationFormFieldResource.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Resources\Api\V1;
+
+use App\Enums\RegistrationFieldType;
+use App\Models\PersonTag;
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+final class RegistrationFormFieldResource extends JsonResource
+{
+    public function toArray(Request $request): array
+    {
+        return [
+            'id' => $this->id,
+            'event_id' => $this->event_id,
+            'label' => $this->label,
+            'slug' => $this->slug,
+            'field_type' => $this->field_type->value,
+            'options' => $this->options,
+            'tag_category' => $this->tag_category,
+            'is_required' => $this->is_required,
+            'is_portal_visible' => $this->is_portal_visible,
+            'is_admin_only' => $this->is_admin_only,
+            'is_filterable' => $this->is_filterable,
+            'section' => $this->section,
+            'help_text' => $this->help_text,
+            'sort_order' => $this->sort_order,
+            'created_at' => $this->created_at->toIso8601String(),
+            'updated_at' => $this->updated_at->toIso8601String(),
+            'available_tags' => $this->when(
+                $this->field_type === RegistrationFieldType::TAG_PICKER,
+                function () {
+                    $query = PersonTag::where('organisation_id', $this->event->organisation_id)
+                        ->where('is_active', true);
+
+                    if ($this->tag_category) {
+                        $query->where('category', $this->tag_category);
+                    }
+
+                    return PersonTagResource::collection($query->orderBy('sort_order')->get());
+                }
+            ),
+        ];
+    }
+}