fix(web): corrige double JSON.stringify em mutations de contato/cliente e deprecation do Divider

apiFetch já serializa o body internamente; passá-lo como JSON.stringify(data) causava
double-encoding e 400 Bad Request no cadastro via browser.
Substitui orientation por titlePlacement no Divider de Contatos (AntD 6.x).

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

apps/web/src/components/contacts/ClientContacts.tsx

@@ -142,7 +142,7 @@ export function ClientContacts({ idCliente }: Props) {
           marginBottom: 12,
         }}
       >
-        <Divider orientation="left" style={{ margin: 0, flex: 1 }}>
+        <Divider titlePlacement="left" style={{ margin: 0, flex: 1 }}>
           Contatos
         </Divider>
         <Button

apps/web/src/lib/queries/clients.ts

@@ -69,8 +69,7 @@ export function useCreateContato(idCliente: number | undefined) {
     mutationFn: async (data) => {
       const res = await apiFetch(`/clients/${idCliente}/contacts`, {
         method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify(data),
+        body: data,
       });
       return ContatoResultSchema.parse(res);
     },
@@ -86,8 +85,7 @@ export function useCreateClientNovo() {
     mutationFn: async (data) => {
       const res = await apiFetch('/clients/novo', {
         method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify(data),
+        body: data,
       });
       return ClientNovoResultSchema.parse(res);
     },