✨ (menu): Añade extensión pagetop-menu

Gestión centralizada y persistente de menús: entidades y migraciones
SeaORM, sistema de acciones para declarar menús/ítems por código, caché
in-process del árbol y los componentes `MenuBlock`/`MenuBreadcrumb`.

extensions/pagetop-menu/src/entity/menu.rs

@@ -0,0 +1,37 @@
+use pagetop_seaorm::db::*;
+
+use chrono::NaiveDateTime;
+
+#[derive(Clone, Debug, DeriveEntityModel, PartialEq)]
+#[sea_orm(table_name = "menus")]
+pub struct Model {
+    #[sea_orm(primary_key)]
+    pub id: i32,
+    #[sea_orm(unique)]
+    pub machine_name: String,
+    pub locked: bool,
+    pub created_at: NaiveDateTime,
+    pub updated_at: NaiveDateTime,
+}
+
+#[derive(Clone, Copy, Debug, DeriveRelation, EnumIter)]
+pub enum Relation {
+    #[sea_orm(has_many = "super::menu_translation::Entity")]
+    MenuTranslations,
+    #[sea_orm(has_many = "super::menu_item::Entity")]
+    MenuItems,
+}
+
+impl Related<super::menu_translation::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::MenuTranslations.def()
+    }
+}
+
+impl Related<super::menu_item::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::MenuItems.def()
+    }
+}
+
+impl ActiveModelBehavior for ActiveModel {}