refactor(roles): role create/edit as a full page instead of a modal

Per feedback, 'New role' (and Edit) now open a dedicated page instead of a
modal:
- New RoleForm full-page component + view at /admin/roles/create and
  /admin/roles/{role}/edit (name, description, permission checkboxes; saves
  and redirects back to the list).
- RoleManager trimmed: the create/edit modal and its logic removed; 'New role'
  and the per-row/view-modal Edit are now links to the new pages.
- Kept the read-only View modal, single + bulk delete, and protections.

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

app/Livewire/RoleManager.php

@@ -6,19 +6,11 @@ use Livewire\Component;
 use Livewire\Attributes\Layout;
 use Illuminate\Support\Facades\Auth;
 use Spatie\Permission\Models\Role;
-use Spatie\Permission\Models\Permission;
 use Spatie\Permission\PermissionRegistrar;
 
 #[Layout('layouts.app')]
 class RoleManager extends Component
 {
-    // Create / edit modal
-    public bool $showForm = false;
-    public ?int $editingRole = null;
-    public string $name = '';
-    public string $description = '';
-    public array $rolePermissions = [];   // selected permission names
-
     // View modal
     public ?int $viewingRole = null;
 
@@ -46,77 +38,6 @@ class RoleManager extends Component
             : [];
     }
 
-    // ── Create / Edit ────────────────────────────────────────────────────────
-
-    public function openCreate(): void
-    {
-        $this->resetForm();
-        $this->showForm = true;
-    }
-
-    public function openEdit(int $id): void
-    {
-        $role = Role::with('permissions')->findOrFail($id);
-        $this->editingRole     = $role->id;
-        $this->name            = $role->name;
-        $this->description     = $role->description ?? '';
-        $this->rolePermissions = $role->permissions->pluck('name')->toArray();
-        $this->resetErrorBag();
-        $this->viewingRole = null;   // close the view modal if open
-        $this->showForm = true;
-    }
-
-    public function save(): void
-    {
-        $this->validate([
-            'name'        => 'required|string|max:50|unique:roles,name' . ($this->editingRole ? ',' . $this->editingRole : ''),
-            'description' => 'nullable|string|max:255',
-        ], [], ['name' => 'nombre', 'description' => 'descripción']);
-
-        if ($this->editingRole) {
-            $role = Role::findOrFail($this->editingRole);
-            $isProtected = in_array($role->name, self::PROTECTED_ROLES, true);
-
-            // Protected roles can't be renamed
-            if (! $isProtected) {
-                $role->name = $this->name;
-            }
-            $role->description = $this->description ?: null;
-            $role->save();
-
-            $perms = $this->rolePermissions;
-            // Admin always keeps the core permission
-            if ($role->name === 'Admin' && ! in_array(self::CORE_PERMISSION, $perms, true)) {
-                $perms[] = self::CORE_PERMISSION;
-            }
-            $role->syncPermissions($perms);
-        } else {
-            $role = Role::create([
-                'name'        => $this->name,
-                'description' => $this->description ?: null,
-            ]);
-            if (! empty($this->rolePermissions)) {
-                $role->syncPermissions($this->rolePermissions);
-            }
-        }
-
-        $this->flushCache();
-        $this->closeForm();
-        $this->dispatch('notify', 'Rol guardado correctamente');
-    }
-
-    public function closeForm(): void
-    {
-        $this->showForm = false;
-        $this->resetForm();
-    }
-
-    private function resetForm(): void
-    {
-        $this->reset(['editingRole', 'name', 'description', 'rolePermissions']);
-        $this->resetErrorBag();
-    }
-
     // ── View ─────────────────────────────────────────────────────────────────
 
     public function openView(int $id): void
@@ -155,6 +76,7 @@ class RoleManager extends Component
             $deleted++;
         }
         $this->selected = [];
+        $this->selectAll = false;
         $this->flushCache();
         $msg = "{$deleted} rol(es) eliminados";
         if ($skipped) $msg .= " ({$skipped} protegido(s) omitido(s))";
@@ -164,9 +86,8 @@ class RoleManager extends Component
     public function render()
     {
         return view('livewire.role-manager', [
-            'roles'       => Role::with('permissions')->withCount('users')->orderBy('name')->get(),
-            'permissions' => Permission::orderBy('name')->get(),
-            'viewing'     => $this->viewingRole
+            'roles'   => Role::with('permissions')->withCount('users')->orderBy('name')->get(),
+            'viewing' => $this->viewingRole
                 ? Role::with('permissions')->withCount('users')->find($this->viewingRole)
                 : null,
         ]);