feat: add diet entity and user lifestyle habits with data seeding support

backend/src/models/user/user.rs

@@ -31,6 +31,16 @@ pub struct Model {
     /// Date of birth
     pub birthdate: Option<Date>,
 
+    // Lifestyle / Habits
+    /// Whether the user smokes
+    pub smoking: Option<bool>,
+
+    /// Whether the user consumes alcohol
+    pub alcohol: Option<bool>,
+
+    /// Foreign key to diet types
+    pub diet_id: Option<i32>,
+
     pub created_at: DateTime,
     pub updated_at: DateTime,
 }
@@ -46,6 +56,13 @@ pub enum Relation {
         to = "super::role::Column::Id"
     )]
     Role,
+
+    #[sea_orm(
+        belongs_to = "super::diet::Entity",
+        from = "Column::DietId",
+        to = "super::diet::Column::Id"
+    )]
+    Diet,
 }
 
 impl Related<super::session::Entity> for Entity {
@@ -60,5 +77,10 @@ impl Related<super::role::Entity> for Entity {
     }
 }
 
-impl ActiveModelBehavior for ActiveModel {}
+impl Related<super::diet::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Diet.def()
+    }
+}
 
+impl ActiveModelBehavior for ActiveModel {}