feat: tighten auth guard in sidebar shell

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

web/src/components/tickets/new-ticket-dialog.tsx

@@ -199,6 +199,7 @@ export function NewTicketDialog() {
                         id="summary"
                         className="min-h-[96px] w-full rounded-lg border border-slate-300 bg-background p-3 text-sm shadow-sm focus-visible:border-[#00d6eb] focus-visible:outline-none"
                         {...form.register("summary")}
+                        placeholder="Explique em poucas linhas o contexto do chamado."
                       />
                     </Field>
                     <Field>