[CLAUDE] FE-User: tab strip 4 giai doan tren phieu PE + menu 4-GD + danh so 01-07 nhom HD (UAT anh Kiet)

- PePipelineStrip moi (mirror x2 app md5-identical): Duyet NCC | Ke hoach ky ket HD | Duyet hop dong | Hop dong cung — chen dau PeDetailTabs (GD1 active)
- Menu 4-GD: rename 2 root (PurchaseEvaluations->Duyet NCC, Contracts->Duyet hop dong) + 2 root placeholder KeHoachKyKet/HopDongCung (ngoai MenuKeys.All, staticMap -> /dashboard) — prod da SQL truc tiep cung ngay, seeder+labelBackfill giu hoi tu (gotcha #11)
- Danh so 01.-07. nhom HD: prod prepend-only 0-VN-over-wire (renamed=7), seeder typeLabels + labelBackfill 7 entry
- Dong bo nhan 4-GD tren dashboard (3 title + 3 group aria)
- reviewKeys += 2 placeholder CanRead-only; test 562 PASS; build fe x2 PASS

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/Backend/SolutionErp.Domain/Identity/MenuKeys.cs

@@ -34,6 +34,13 @@ public static class MenuKeys
     public static readonly string[] ContractTypeCodes =
         ["ThauPhu", "GiaoKhoan", "NhaCungCap", "DichVu", "MuaBan", "NguyenTacNcc", "NguyenTacDv"];
 
+    // [S159 2026-07-29] 2 root PLACEHOLDER giai đoạn 2/4 (owner: menu hiển thị đúng
+    // 4 giai đoạn như tab strip). CỐ Ý NGOÀI `All` — chưa có module ⇒ không sinh
+    // policy per-action (giữ canonical Menu keys/Policies không drift); FE trỏ về
+    // /dashboard. Wave-1 GĐ2 (spec KHKK) phải TÁI DÙNG/thay root `KeHoachKyKet` này.
+    public const string KeHoachKyKet = "KeHoachKyKet";
+    public const string HopDongCung = "HopDongCung";
+
     public static string ContractTypeGroup(string typeCode) => $"Ct_{typeCode}";
     public static string ContractTypeList(string typeCode) => $"Ct_{typeCode}_List";
     public static string ContractTypeCreate(string typeCode) => $"Ct_{typeCode}_Create";