[CLAUDE] PurchaseEvaluation: ngan sach goi thau theo Excel anh Kiet - bang tong hop 2 block + nhap theo role PRO/CCM + xoa module Budget cu (Mig 50)

- Mig 50 ReplaceBudgetModuleWithPeWorkItemBudgets: bang moi PeWorkItemBudgets (1 record/cap Du an x Hang muc, UNIQUE filtered [IsDeleted]=0) + drop 5 bang Budget cu + PE/Contracts drop BudgetId + backfill BudgetManualAmount->BudgetPeriodAmount TRUOC DropColumn (phieu UAT giu so) + DELETE menu/permission Bg_* IN-list children-first
- BE: PUT {id}/budget/pro (role Procurement) + {id}/budget/ccm (role CostControl, Adjustment cho phep AM) fail-closed Forbidden-truoc-side-effect + EnsureTrackedAsync race-safe (catch unique -> re-fetch winner, loi khac rethrow) + auto-create record khi tao phieu + budgetSummary DTO (luy ke trinh-truoc/chon-thau-truoc/de-xuat-ky-nay + full fallback du-tru-PRO + canEdit flags) + submit-guard (3) doi predicate BudgetPeriodAmount -> "chua nhap Ngan sach ky nay" + PATCH budget-adjust absolute-set 2 field moi + Contract GIU BudgetManual* (HD nhap tay khong doi) + ke thua HD map BudgetPeriodAmount
- FE x2 app SHA256 identical: bang "TONG HOP NGAN SACH TRINH KY" block A (full dam + ban hanh + V0 hieu chinh + du tru PRO + ghi chu, editable theo canEditPro/canEditCcm) + block B 9 dong cong thuc Excel (5=1+3, 6=2+4, 7=full-5, 8 tu nhap default 7, 9=4+8) + to mau vuot ngan sach #C00000 / am do / red-soft row8>row7 + "Chua chon" khi count=0 + banner phieu chua gan Hang muc + o "Ngan sach ky nay" o create/header + XOA pages/components/types budgets + routes + menuKeys + Layout staticMap 4-place
- Tests: +22 PeWorkItemBudgetTests (auto-create x3, ensure/race x2, authz matrix PRO x5 + CCM x3, budgetSummary aggregates x5, adjust x4) - 14 BudgetPolicyTests xoa theo module - 1 test via-BudgetId -> 263 PASS (45 Domain + 218 Infra, 0 fail)
- database-agent advise adopted: khong FK vat ly PE/Contracts->Budgets (DropColumn khong can DropForeignKey) + DropIndex truoc DropColumn (SQL 5074) + IN-list thay LIKE Bg_% (underscore wildcard + miss root) + khong Serializable wrap (nested-tx conflict codegen)
- Reviewer PASS-with-minor 0 blocker (verdict-first survived); 2 minor da sua truoc commit (comment adjustMut absolute-set + dead key budgetId); note: F4 approver-edit-budget UI entry tam drafter-only, BE van cho approver scope - cho UAT anh Kiet
- Scaffold-bug caught: EF tu sinh RenameColumn BudgetManualAmount->ExpectedRemainingAmount (SAI semantics) -> thay bang Add+UPDATE+Drop

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

src/Backend/SolutionErp.Application/Common/Interfaces/IApplicationDbContext.cs

@@ -1,6 +1,5 @@
 using Microsoft.EntityFrameworkCore;
 using SolutionErp.Domain.ApprovalWorkflowsV2;
-using SolutionErp.Domain.Budgets;
 using SolutionErp.Domain.Contracts;
 using SolutionErp.Domain.Contracts.Details;
 using SolutionErp.Domain.Forms;
@@ -71,6 +70,9 @@ public interface IApplicationDbContext
     DbSet<PurchaseEvaluationDepartmentApproval> PurchaseEvaluationDepartmentApprovals { get; }
     // Mig 26 (Session 19) — Ý kiến cấp duyệt V2 dynamic theo ApprovalWorkflowLevel
     DbSet<PurchaseEvaluationLevelOpinion> PurchaseEvaluationLevelOpinions { get; }
+    // [S61 Mig 50] Ngân sách gói thầu per cặp (ProjectId, WorkItemId) — 1 record/cặp,
+    // loose-Guid KHÔNG FK vật lý. Thay module Budget cũ (5 bảng đã drop).
+    DbSet<PeWorkItemBudget> PeWorkItemBudgets { get; }
 
     // Quy trình duyệt MỚI (Mig 22 — Session 17): schema riêng UAT trước khi
     // drop legacy WorkflowDefinition. Cấu trúc: Quy trình > Bước (Phòng) > Cấp (NV cụ thể).
@@ -78,13 +80,6 @@ public interface IApplicationDbContext
     DbSet<ApprovalWorkflowStep> ApprovalWorkflowSteps { get; }
     DbSet<ApprovalWorkflowLevel> ApprovalWorkflowLevels { get; }
 
-    // Module Ngân sách (Phase 7)
-    DbSet<Budget> Budgets { get; }
-    DbSet<BudgetDetail> BudgetDetails { get; }
-    DbSet<BudgetApproval> BudgetApprovals { get; }
-    DbSet<BudgetChangelog> BudgetChangelogs { get; }
-    DbSet<BudgetDepartmentApproval> BudgetDepartmentApprovals { get; }
-
     // Phase 10.1 G-H1 (Mig 34 — S33) — Hồ sơ Nhân sự port từ NamGroup.
     // 1 main + 5 satellite + 1 sequence. 1-1 với User qua UserId UNIQUE.
     // 3 HĐLĐ satellite defer Plan H2 sau.