feat(issues): tipo/categoría de incidencia (defecto/seguridad/calidad/documentación/otro)

- Issue::TYPES + typeLabels() (ES) + accessors type_label/type_color; columna type
  (string, default 'other') + fillable.
- IssueForm: select "Tipo de incidencia" con validación/carga/guardado.
- IssueTable: columna Tipo (badge) + SelectFilter por tipo.
- IssueDetail: badge de tipo en la cabecera.
- Sync offline: issue.create/update aceptan type; bundle (mapIssue) lo incluye.

Tests: IssuesEnhancementsTest (create muestra el campo vía HTTP, edición persiste) +
MobileApiTest (create con type). Suite 61 passing (solo 2 pre-existentes sqlite).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/Livewire/IssueForm.php

@@ -23,6 +23,7 @@ class IssueForm extends Component
     public $description = '';
     public $status = 'open';
     public $priority = 'medium';
+    public $type = 'defect';
     public $assignedTo = '';
     public $resolutionNotes = '';
 
@@ -48,6 +49,7 @@ class IssueForm extends Component
             $this->description     = $issue->description ?? '';
             $this->status          = $issue->status;
             $this->priority        = $issue->priority;
+            $this->type            = $issue->type ?? 'defect';
             $this->assignedTo      = $issue->assigned_to ?? '';
             $this->resolutionNotes = $issue->resolution_notes ?? '';
             $this->featureId       = $issue->feature_id;
@@ -77,6 +79,7 @@ class IssueForm extends Component
             'description'     => 'nullable|string',
             'status'          => 'required|in:' . implode(',', Issue::STATUSES),
             'priority'        => 'required|in:' . implode(',', Issue::PRIORITIES),
+            'type'            => 'required|in:' . implode(',', Issue::TYPES),
             'assignedTo'      => 'nullable|exists:users,id',
             'resolutionNotes' => 'nullable|string',
         ];
@@ -92,6 +95,7 @@ class IssueForm extends Component
             'description'      => $this->description,
             'status'           => $this->status,
             'priority'         => $this->priority,
+            'type'             => $this->type,
             'feature_id'       => $this->featureId,
             'inspection_id'    => $this->inspectionId,
             'assigned_to'      => $this->assignedTo ?: null,