refactor(server/api): migrate library/suggestions/radio/home preludes (A2 4/N)

internal/api/radio.go

@@ -13,7 +13,6 @@ import (
 	"github.com/jackc/pgx/v5/pgtype"
 
 	"git.fabledsword.com/bvandeusen/minstrel/internal/apierror"
-	"git.fabledsword.com/bvandeusen/minstrel/internal/auth"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/db/dbq"
 	"git.fabledsword.com/bvandeusen/minstrel/internal/recommendation"
 )
@@ -30,9 +29,8 @@ type RadioResponse struct {
 // scoring formula folds in contextual_match_score using the user's current
 // session vector (read from the most recent open play_event).
 func (h *handlers) handleRadio(w http.ResponseWriter, r *http.Request) {
-	user, ok := auth.UserFromContext(r.Context())
+	user, ok := requireUser(w, r)
 	if !ok {
-		writeErr(w, apierror.ErrUnauthorized)
 		return
 	}
 	raw := strings.TrimSpace(r.URL.Query().Get("seed_track"))