feat(templates): grupos de campos, pregunta/comentarios por campo y plantillas globales

Builder de plantillas (parte 1 del bloque):
- Cada campo admite "Grupo / sección" (título), "Pregunta / revisar" (texto corto,
  tras la etiqueta) y "Comentarios / ayuda" (texto largo, al final).
- Plantillas híbridas: toggle "Global" → project_id null; el listado de un proyecto
  muestra sus plantillas + las globales (badge "Global").

Tests: TemplateCreationTest (grupo/pregunta/ayuda persisten; global sin proyecto y
visible en otros proyectos). Suite 90 passing.

Pendiente (parte 2): adaptar el formulario de inspección (grupos, comentarios, fotos)
y el visor de inspección.

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

app/Livewire/Inspections/TemplateManager.php

@@ -25,6 +25,7 @@ class TemplateManager extends Component
         'name'        => '',
         'description' => '',
         'phase_id'    => null,
+        'is_global'   => false,
         'fields'      => [],
     ];
 
@@ -67,8 +68,12 @@ class TemplateManager extends Component
 
     public function loadTemplates()
     {
-        $this->templates = InspectionTemplate::where('project_id', $this->project->id)
+        // Plantillas del proyecto + globales (project_id null)
+        $this->templates = InspectionTemplate::where(function ($q) {
+                $q->where('project_id', $this->project->id)->orWhereNull('project_id');
+            })
             ->with('phase')
+            ->orderBy('name')
             ->get();
     }
 
@@ -87,6 +92,7 @@ class TemplateManager extends Component
             'name'        => $template->name,
             'description' => $template->description ?? '',
             'phase_id'    => $template->phase_id,
+            'is_global'   => is_null($template->project_id),
             'fields'      => $template->fields ?? [],
         ];
         $this->editingTemplate = $id;
@@ -105,6 +111,7 @@ class TemplateManager extends Component
             'name'        => '',
             'description' => '',
             'phase_id'    => null,
+            'is_global'   => false,
             'fields'      => [],
         ];
         $this->editingTemplate = null;
@@ -113,14 +120,17 @@ class TemplateManager extends Component
     public function addField()
     {
         $this->form['fields'][] = [
+            'group'    => '',
             'name'     => '',
             'label'    => '',
+            'question' => '',
             'type'     => 'text',
             'options'  => '',
             'required' => false,
             'min'      => null,
             'max'      => null,
             'step'     => null,
+            'help'     => '',
         ];
     }
 
@@ -141,8 +151,8 @@ class TemplateManager extends Component
         $data = [
             'name'        => $this->form['name'],
             'description' => $this->form['description'],
-            'project_id'  => $this->project->id,
-            'phase_id'    => $this->form['phase_id'] ?: null,
+            'project_id'  => ($this->form['is_global'] ?? false) ? null : $this->project->id,
+            'phase_id'    => ($this->form['is_global'] ?? false) ? null : ($this->form['phase_id'] ?: null),
             'fields'      => array_values($this->form['fields']),
         ];