feat(web): object-detail tab title, caption element fix, login title (#57)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

web/src/objects/object-detail.test.tsx

@@ -1,5 +1,5 @@
 import { expect, test } from "vitest";
-import { screen, within } from "@testing-library/react";
+import { screen, waitFor, within } from "@testing-library/react";
 import { http, HttpResponse } from "msw";
 import { Routes, Route } from "react-router-dom";
 import { server } from "../test/server";
@@ -96,6 +96,14 @@ test("shows a not-found state for a missing object", async () => {
   expect(await screen.findByText(/object not found/i)).toBeInTheDocument();
 });
 
+test("sets the tab title to the object number and reverts on unmount", async () => {
+  document.title = "Base";
+  const { unmount } = renderDetail();
+  await waitFor(() => expect(document.title).toMatch(/^LM-0042 \| /));
+  unmount();
+  expect(document.title).toBe("Base");
+});
+
 test("detail shows the publish control with the current visibility stepper", async () => {
   // default GET /api/admin/objects/:id handler returns amphora (visibility "public")
   renderApp(tree(), { route: "/objects/11111111-1111-1111-1111-111111111111" });

web/src/objects/object-detail.tsx

@@ -5,6 +5,7 @@ import { useTranslation } from "react-i18next";
 import type { components } from "../api/schema";
 import { useObject, useFieldDefinitions } from "../api/queries";
 import { formatDate } from "../lib/format-date";
+import { useDocumentTitle } from "../lib/use-document-title";
 import { DeleteObjectDialog } from "./delete-object-dialog";
 import { FlexibleFieldValue } from "./flexible-field-value";
 import { PublishControl } from "./publish-control";
@@ -13,6 +14,7 @@ import { buttonVariants } from "@/components/ui/button";
 import { Skeleton } from "@/components/ui/skeleton";
 
 type FieldDefinitionView = components["schemas"]["FieldDefinitionView"];
+type AdminObjectView = components["schemas"]["AdminObjectView"];
 
 function Field({ label, value }: { label: string; value: ReactNode }) {
   const empty = value === null || value === undefined || value === "";
@@ -26,10 +28,9 @@ function Field({ label, value }: { label: string; value: ReactNode }) {
 }
 
 export function ObjectDetail() {
-  const { t, i18n } = useTranslation();
+  const { t } = useTranslation();
   const { id } = useParams();
   const { data: object, isLoading, isError } = useObject(id!);
-  const { data: definitions } = useFieldDefinitions();
 
   if (isLoading) {
     return (
@@ -43,6 +44,15 @@ export function ObjectDetail() {
 
   if (!object) return <p className="p-4 text-sm text-muted-foreground">{t("objects.notFound")}</p>;
 
+  return <ObjectDetailLoaded object={object} />;
+}
+
+function ObjectDetailLoaded({ object }: { object: AdminObjectView }) {
+  const { t, i18n } = useTranslation();
+  const { data: definitions } = useFieldDefinitions();
+
+  useDocumentTitle(object.object_number);
+
   // Prefer the active locale's label, then English, then the raw key.
   const lang = i18n.language.startsWith("sv") ? "sv" : "en";
   const labelFor = (key: string) => {