feat(09-11): add permissioned admin metadata and settings

pact/capabilities.go

@@ -145,6 +145,7 @@ type HasPermissions interface {
 // NavigationItem is one registerNavigation() entry. Controller is the admin
 // controller ID; the SPA derives its route from that ID.
 type NavigationItem struct {
+	Code        string
 	Label       string
 	Icon        string
 	Permissions []string
@@ -169,6 +170,8 @@ type SettingsItem struct {
 	Order       int
 	Keywords    []string
 	Permissions []string
+	Form        string     `json:"-"`
+	NewModel    func() any `json:"-"`
 }
 
 // HasSettings is implemented by plugins that declare settings screens.