fix(api): 404 when adding a term to a missing vocabulary (#22); log public 500s (#18)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

crates/api/src/admin_vocab.rs

@@ -185,9 +185,15 @@ pub(crate) async fn add_term(
         .await
         .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
 
-    let term_id = db::vocab::add_term(&mut tx, &new)
-        .await
-        .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
+    let term_id = db::vocab::add_term(&mut tx, &new).await.map_err(|err| {
+        // A well-formed id for a missing vocabulary hits the FK constraint (23503).
+        if err.as_database_error().and_then(|e| e.code()).as_deref() == Some("23503") {
+            StatusCode::NOT_FOUND
+        } else {
+            tracing::error!(?err, "adding term");
+            StatusCode::INTERNAL_SERVER_ERROR
+        }
+    })?;
 
     tx.commit()
         .await

crates/api/src/public.rs

@@ -71,11 +71,17 @@ pub(crate) async fn list_objects(
     // public read surface.
     let objects = db::catalog::list_public_objects(state.db.pool(), limit, offset)
         .await
-        .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
+        .map_err(|err| {
+            tracing::error!(?err, "listing public objects");
+            StatusCode::INTERNAL_SERVER_ERROR
+        })?;
 
     let total = db::catalog::count_public_objects(state.db.pool())
         .await
-        .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
+        .map_err(|err| {
+            tracing::error!(?err, "counting public objects");
+            StatusCode::INTERNAL_SERVER_ERROR
+        })?;
 
     Ok(Json(PublicObjectPage {
         items: objects.iter().map(PublicView::from_object).collect(),
@@ -106,7 +112,10 @@ pub(crate) async fn get_object(
     match db::catalog::public_object_by_id(state.db.pool(), object_id).await {
         Ok(Some(object)) => Json(PublicView::from_object(&object)).into_response(),
         Ok(None) => StatusCode::NOT_FOUND.into_response(),
-        Err(_) => StatusCode::INTERNAL_SERVER_ERROR.into_response(),
+        Err(err) => {
+            tracing::error!(?err, "fetching public object");
+            StatusCode::INTERNAL_SERVER_ERROR.into_response()
+        }
     }
 }