feat(web): nested object routes + in-pane edit form + edit flow

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

web/src/objects/objects-page.tsx

@@ -1,26 +1,15 @@
-import { useParams } from "react-router-dom";
-import { useTranslation } from "react-i18next";
+import { Outlet } from "react-router-dom";
 
 import { ObjectList } from "./object-list";
-import { ObjectDetail } from "./object-detail";
 
 export function ObjectsPage() {
-  const { t } = useTranslation();
-  const { id } = useParams();
-
   return (
     <div className="grid h-full grid-cols-[20rem_1fr]">
       <div className="overflow-hidden border-r">
         <ObjectList />
       </div>
       <div className="overflow-hidden">
-        {id ? (
-          <ObjectDetail />
-        ) : (
-          <div className="flex h-full items-center justify-center p-4 text-sm text-neutral-400">
-            {t("objects.selectPrompt")}
-          </div>
-        )}
+        <Outlet />
       </div>
     </div>
   );