minor cleanup with traits

crates/chattyness-user-ui/src/api/scenes.rs

@@ -11,7 +11,7 @@ use chattyness_db::{
     models::{Scene, SceneSummary, Spot, SpotSummary},
     queries::{realms, scenes, spots},
 };
-use chattyness_error::AppError;
+use chattyness_error::{AppError, OptionExt};
 
 /// Get the entry scene for a realm.
 ///
@@ -86,7 +86,7 @@ pub async fn get_spot(
 ) -> Result<Json<Spot>, AppError> {
     let spot = spots::get_spot_by_id(&pool, spot_id)
         .await?
-        .ok_or_else(|| AppError::NotFound("Spot not found".to_string()))?;
+        .or_not_found("Spot")?;
 
     Ok(Json(spot))
 }