feat(web): new-object full-width page + create flow + /objects/new

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

web/src/objects/object-new-page.tsx

@@ -0,0 +1,54 @@
+import { useState } from "react";
+import { useNavigate } from "react-router-dom";
+import { useTranslation } from "react-i18next";
+
+import { ObjectForm, type ObjectFormValues } from "./object-form";
+import { useCreateObject, useSetFields } from "../api/queries";
+
+export function ObjectNewPage() {
+  const { t } = useTranslation();
+  const navigate = useNavigate();
+  const create = useCreateObject();
+  const setFields = useSetFields();
+  const [error, setError] = useState<string | null>(null);
+
+  const onSubmit = async (values: ObjectFormValues) => {
+    setError(null);
+
+    let id: string;
+
+    try {
+      const created = await create.mutateAsync({
+        ...values.core,
+        visibility: values.visibility ?? "draft",
+      });
+
+      id = created.id;
+    } catch {
+      setError(t("form.rejected"));
+      return;
+    }
+
+    if (Object.keys(values.fields).length > 0) {
+      try {
+        await setFields.mutateAsync({ id, fields: values.fields });
+      } catch {
+        navigate(`/objects/${id}/edit`, { state: { fieldsError: true } });
+        return;
+      }
+    }
+
+    navigate(`/objects/${id}`);
+  };
+
+  return (
+    <div className="mx-auto max-w-2xl">
+      <ObjectForm
+        mode="create"
+        formError={error}
+        onSubmit={onSubmit}
+        onCancel={() => navigate("/objects")}
+      />
+    </div>
+  );
+}