refactor(server/api): migrate library/media handlers to writeErr(err) (T3b)

internal/api/home.go

@@ -3,6 +3,7 @@ package api
 import (
 	"net/http"
 
+	"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"
@@ -15,13 +16,13 @@ import (
 func (h *handlers) handleGetHome(w http.ResponseWriter, r *http.Request) {
 	user, ok := auth.UserFromContext(r.Context())
 	if !ok {
-		writeErr(w, http.StatusUnauthorized, "unauthorized", "authentication required")
+		writeErr(w, apierror.ErrUnauthorized)
 		return
 	}
 	data, err := recommendation.HomeData(r.Context(), h.pool, user.ID)
 	if err != nil {
 		h.logger.Error("api: home data", "err", err)
-		writeErr(w, http.StatusInternalServerError, "server_error", "failed to load home")
+		writeErr(w, apierror.InternalMsg("failed to load home", err))
 		return
 	}