统一菜单命名并移除剩余台账工具（05-31-unified-menu-remove-ledger-tools-wave2）

client/src/pages/ProjectDetailPage.tsx

@@ -596,7 +596,7 @@ export function ProjectDetailPage() {
               <Link to="/projects">返回项目</Link>
             </Button>
             <Button asChild variant="secondary" type="button">
-              <Link to={`/contracts-registry?projectId=${detail.id}`}>合同台账</Link>
+              <Link to={`/contracts-registry?projectId=${detail.id}`}>合同</Link>
             </Button>
             <Button type="button" variant="secondary" disabled={archiveProjectMutation.isPending || detail.status === "archived"} onClick={() => setConfirmArchiveProject(true)}>
               {archiveProjectMutation.isPending ? "归档中..." : "归档项目"}
@@ -1090,7 +1090,7 @@ export function ProjectDetailPage() {
             <div>负责人：{detail.owner?.name ?? "-"}</div>
             <div>项目经理：{detail.manager?.name ?? "-"}</div>
             <div>周报关联：{counts?.weeklyReports ?? 0}</div>
-            <div>合同台账：{counts?.contracts ?? 0}</div>
+            <div>合同：{counts?.contracts ?? 0}</div>
             <div>交付记录：{counts?.deliveries ?? 0}</div>
             <div>资料引用：{counts?.documentRefs ?? 0}</div>
             <div className="rounded-lg border border-zinc-200 p-3 text-zinc-600">
@@ -1156,7 +1156,7 @@ export function ProjectDetailPage() {
                 </div>
               </div>
               <div className="rounded-lg border border-zinc-200 p-4">
-                <div className="text-sm text-zinc-500">合同台账</div>
+                <div className="text-sm text-zinc-500">合同</div>
                 <div className="mt-1 text-xl font-semibold text-zinc-900">{contractsQuery.data?.items.length ?? 0}</div>
                 <div className="mt-2 space-y-2 text-sm">
                   {(contractsQuery.data?.items ?? []).slice(0, 5).map((item) => (