[CLAUDE] AwV2: Mig 25 +IsUserSelectable + Designer pin toggle + Workspace filter, bỏ "(clone)"

Hai yêu cầu UAT 2026-05-08:
1. Bỏ "(clone)" auto-append khi clone version mới — version đã đủ phân biệt.
2. Thêm pin toggle để admin chọn workflows nào cho user pick lúc tạo phiếu.

Migration 25 AddIsUserSelectableToApprovalWorkflows:
- ALTER ApprovalWorkflows ADD IsUserSelectable bit NOT NULL DEFAULT 0
- UPDATE backfill SET IsUserSelectable=1 WHERE IsActive=1 (giữ behavior cũ
  cho active versions, archived = false default — admin tự pin nếu cần)

BE:
- Domain ApprovalWorkflow +property IsUserSelectable
- DTO AwDefinitionDto +field
- CreateAwDefinitionCommandHandler set default true cho version mới
- New SetAwUserSelectableCommand + Handler
- API PATCH /api/approval-workflows-v2/{id}/user-selectable (Workflows.Create policy)
- DbInitializer SeedSampleApprovalWorkflowsV2Async set IsUserSelectable=true

FE Designer (fe-admin):
- DefinitionDto +isUserSelectable
- Badge amber "Pin Cho user chọn" khi true (cạnh Đang áp dụng/Archived)
- Button "Pin/PinOff Ghim cho user / Bỏ ghim" trong action group + mutation toggle
- Auto-fill name khi clone: bỏ "(clone)" suffix → giữ nguyên name

FE Workspace (fe-admin + fe-user):
- approvalWorkflows query filter w.isUserSelectable === true
- User dropdown chỉ thấy workflows admin đã pin

Verify: dotnet build pass · 81 test pass · npm build × 2 pass · Mig 25 apply LocalDB OK.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

fe-user/src/components/pe/PeWorkspaceCreateView.tsx

@@ -72,15 +72,16 @@ export function PeWorkspaceCreateView({
   })
 
   // Mig 23 — fetch list quy trình duyệt V2 (filter ApplicableType khớp defaultType).
+  // Mig 25 — chỉ hiện workflows admin đã ghim "cho user chọn" (IsUserSelectable=true).
   const approvalWorkflows = useQuery({
     queryKey: ['approval-workflows-v2-active', defaultType],
     queryFn: async () => {
-      const res = await api.get<{ types: { applicableType: number; history: { id: string; code: string; version: number; name: string; isActive: boolean }[] }[] }>(
+      const res = await api.get<{ types: { applicableType: number; history: { id: string; code: string; version: number; name: string; isActive: boolean; isUserSelectable: boolean }[] }[] }>(
         '/approval-workflows-v2',
         { params: { applicableType: defaultType } },
       )
       const typeBucket = res.data.types.find(t => t.applicableType === defaultType)
-      return typeBucket?.history ?? []
+      return (typeBucket?.history ?? []).filter(w => w.isUserSelectable)
     },
   })