refactor(server/api): migrate admin_smtp/admin_tracks + playlist refresh preludes (A2 6/N)

internal/api/admin_smtp.go

@@ -8,7 +8,6 @@ import (
 	"time"
 
 	"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/mailer"
 )
@@ -100,9 +99,8 @@ func (h *handlers) handleUpdateSMTPConfig(w http.ResponseWriter, r *http.Request
 }
 
 func (h *handlers) handleTestSMTPConfig(w http.ResponseWriter, r *http.Request) {
-	caller, ok := auth.UserFromContext(r.Context())
+	caller, ok := requireUser(w, r)
 	if !ok {
-		writeErr(w, apierror.Unauthorized("auth_required", ""))
 		return
 	}
 	if caller.Email == nil || *caller.Email == "" {