[CLAUDE] PE: Workflow designer admin UI + Ý kiến 4 phòng ban (P1 Session 5)

==== Task 1: PE Workflow Designer admin ====

BE (mirror Contract WorkflowAdminFeatures pattern):
- Application/PurchaseEvaluations/PeWorkflowAdminFeatures.cs ~250 LOC:
  - GetPeWorkflowAdminOverviewQuery → list 2 EvaluationType (DuyetNcc / DuyetNccPhuongAn) với Active + History versions + count phiếu đang dùng
  - CreatePeWorkflowDefinitionCommand + Validator: auto-increment Version per Code, deactivate Active cũ trong cùng EvaluationType (1 active per type invariant)
  - DTOs: PeWorkflowStepApproverDto / PeWorkflowStepDto / PeWorkflowDefinitionDto / PeWorkflowTypeSummaryDto / PeWorkflowAdminOverviewDto
  - Phase validation 1..7 (state thường, không bao gồm 99=TuChoi)
- Api/Controllers/PeWorkflowsController.cs: 2 endpoint GET /api/pe-workflows + POST. Reuse policy "Workflows.Read" + "Workflows.Create" (admin chung quyền cho cả 2 nhóm WF).

FE:
- pages/system/PeWorkflowsPage.tsx ~500 LOC mirror WorkflowsPage:
  - Landing 2-card grid khi /system/pe-workflows (chưa pick type)
  - TypePanel khi /system/pe-workflows/:typeCode (DuyetNcc / DuyetNccPhuongAn)
  - DefinitionCard read-only view với active badge + version + steps + approvers (Role/User chip)
  - PeWorkflowDesigner dialog: clone từ existing, edit Code/Name/Description, add/remove steps, +Role / +User approvers per step, save → version mới + deactivate cũ
- App.tsx route /system/pe-workflows + /system/pe-workflows/:typeCode
- Layout đã có resolver PeWf_<Code> → /system/pe-workflows/<code> từ session 3

==== Task 2: Ý kiến 4 phòng ban PE ====

Domain:
- PurchaseEvaluationDepartmentOpinion entity (AuditableEntity) — PEId + Kind + Opinion text + SignedAt + UserId + UserName denorm
- PeDepartmentKind enum (PheDuyet / Ccm / MuaHang / SmPm)
- PE entity + collection navigation DepartmentOpinions

Infrastructure:
- PurchaseEvaluationDepartmentOpinionConfiguration EF: UNIQUE(PEId, Kind) — max 1 row per phòng ban per phiếu (UPDATE in-place)
- ApplicationDbContext + IApplicationDbContext DbSet
- Migration 15 AddPurchaseEvaluationDepartmentOpinions (15 migration total / 52 DB tables)

Application:
- PeDepartmentOpinionFeatures.cs: UpsertPeDepartmentOpinionCommand (sign=true → set SignedAt+UserId, sign=false chỉ lưu text giữ chữ ký cũ) + DeletePeDepartmentOpinionCommand
- DTO bundle update: + DepartmentOpinions list trong PurchaseEvaluationDetailBundleDto
- GetPurchaseEvaluationQueryHandler load DepartmentOpinions + KindLabel resolution

API:
- POST /api/purchase-evaluations/{id}/opinions (upsert)
- DELETE /api/purchase-evaluations/{id}/opinions/{kind}

FE:
- types/purchaseEvaluation.ts: + PeDepartmentKind enum + PeDepartmentKindLabel + PeDepartmentOpinion type + departmentOpinions vào bundle
- PeDetailTabs Section "5. Ý kiến 4 phòng ban (sign-off)" — 2x2 grid OpinionBox per kind:
  - Read mode (readOnly menu Duyệt): hiển thị text + chữ ký
  - Edit mode: textarea + 2 button "Lưu text" / "Lưu & Ký"
  - Badge "Đã ký" emerald + tên người ký + ngày khi signedAt != null

==== Task 3: User seed verify ====

Seed `SeedDemoUsersAsync` đã match đúng user list authoritative (5 PRO TPB+NV / 7 CCM TPB+NV / 1 ISO / 1 CEO) từ prior commit. DbInitializer reconcile sẽ tự sync khi API restart. Typo trong list user (soluttions / trương) đã fixed sensibly trong seed.

==== Build verify ====
- dotnet build clean (0 error)
- fe-admin TS build pass (1 module mới PeWorkflowsPage)
- fe-user TS build pass (PE detail mirror)

Total: 8 file mới (BE 4 + FE 1 + Migration 2 + 1 Domain) + 13 file modified.

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

src/Backend/SolutionErp.Infrastructure/Persistence/ApplicationDbContext.cs

@@ -59,6 +59,7 @@ public class ApplicationDbContext
     public DbSet<PurchaseEvaluationWorkflowStep> PurchaseEvaluationWorkflowSteps => Set<PurchaseEvaluationWorkflowStep>();
     public DbSet<PurchaseEvaluationWorkflowStepApprover> PurchaseEvaluationWorkflowStepApprovers => Set<PurchaseEvaluationWorkflowStepApprover>();
     public DbSet<PurchaseEvaluationCodeSequence> PurchaseEvaluationCodeSequences => Set<PurchaseEvaluationCodeSequence>();
+    public DbSet<PurchaseEvaluationDepartmentOpinion> PurchaseEvaluationDepartmentOpinions => Set<PurchaseEvaluationDepartmentOpinion>();
 
     // Module Ngân sách (Phase 7) — 4 bảng: Budget header + Details + Approvals + Changelogs.
     public DbSet<Budget> Budgets => Set<Budget>();

src/Backend/SolutionErp.Infrastructure/Persistence/Configurations/PurchaseEvaluationConfiguration.cs

@@ -32,6 +32,7 @@ public class PurchaseEvaluationConfiguration : IEntityTypeConfiguration<Purchase
         b.HasMany(x => x.Approvals).WithOne(a => a.PurchaseEvaluation).HasForeignKey(a => a.PurchaseEvaluationId).OnDelete(DeleteBehavior.Cascade);
         b.HasMany(x => x.Changelogs).WithOne(c => c.PurchaseEvaluation).HasForeignKey(c => c.PurchaseEvaluationId).OnDelete(DeleteBehavior.Cascade);
         b.HasMany(x => x.Attachments).WithOne(a => a.PurchaseEvaluation).HasForeignKey(a => a.PurchaseEvaluationId).OnDelete(DeleteBehavior.Cascade);
+        b.HasMany(x => x.DepartmentOpinions).WithOne(o => o.PurchaseEvaluation).HasForeignKey(o => o.PurchaseEvaluationId).OnDelete(DeleteBehavior.Cascade);
         // Quotes không FK trực tiếp tới PurchaseEvaluation (đi qua Detail) —
         // nhưng collection navigation có nên cần config riêng bên dưới.
 
@@ -217,3 +218,21 @@ public class PurchaseEvaluationCodeSequenceConfiguration
         b.Property(x => x.Prefix).HasMaxLength(100);
     }
 }
+
+public class PurchaseEvaluationDepartmentOpinionConfiguration
+    : IEntityTypeConfiguration<PurchaseEvaluationDepartmentOpinion>
+{
+    public void Configure(EntityTypeBuilder<PurchaseEvaluationDepartmentOpinion> b)
+    {
+        b.ToTable("PurchaseEvaluationDepartmentOpinions");
+        b.HasKey(x => x.Id);
+
+        b.Property(x => x.Kind).HasConversion<int>();
+        b.Property(x => x.Opinion).HasMaxLength(2000);
+        b.Property(x => x.UserName).HasMaxLength(200);
+
+        // Each PE × Kind unique — max 1 ý kiến per phòng ban per phiếu.
+        // UPDATE in-place khi user đổi ý → audit qua Changelog.
+        b.HasIndex(x => new { x.PurchaseEvaluationId, x.Kind }).IsUnique();
+    }
+}

src/Backend/SolutionErp.Infrastructure/Persistence/Migrations/20260429041117_AddPurchaseEvaluationDepartmentOpinions.cs

@@ -0,0 +1,58 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace SolutionErp.Infrastructure.Persistence.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddPurchaseEvaluationDepartmentOpinions : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "PurchaseEvaluationDepartmentOpinions",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uniqueidentifier", nullable: false),
+                    PurchaseEvaluationId = table.Column<Guid>(type: "uniqueidentifier", nullable: false),
+                    Kind = table.Column<int>(type: "int", nullable: false),
+                    Opinion = table.Column<string>(type: "nvarchar(2000)", maxLength: 2000, nullable: true),
+                    SignedAt = table.Column<DateTime>(type: "datetime2", nullable: true),
+                    UserId = table.Column<Guid>(type: "uniqueidentifier", nullable: true),
+                    UserName = table.Column<string>(type: "nvarchar(200)", maxLength: 200, nullable: true),
+                    CreatedAt = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    UpdatedAt = table.Column<DateTime>(type: "datetime2", nullable: true),
+                    CreatedBy = table.Column<Guid>(type: "uniqueidentifier", nullable: true),
+                    UpdatedBy = table.Column<Guid>(type: "uniqueidentifier", nullable: true),
+                    IsDeleted = table.Column<bool>(type: "bit", nullable: false),
+                    DeletedAt = table.Column<DateTime>(type: "datetime2", nullable: true),
+                    DeletedBy = table.Column<Guid>(type: "uniqueidentifier", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_PurchaseEvaluationDepartmentOpinions", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_PurchaseEvaluationDepartmentOpinions_PurchaseEvaluations_PurchaseEvaluationId",
+                        column: x => x.PurchaseEvaluationId,
+                        principalTable: "PurchaseEvaluations",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PurchaseEvaluationDepartmentOpinions_PurchaseEvaluationId_Kind",
+                table: "PurchaseEvaluationDepartmentOpinions",
+                columns: new[] { "PurchaseEvaluationId", "Kind" },
+                unique: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "PurchaseEvaluationDepartmentOpinions");
+        }
+    }
+}

src/Backend/SolutionErp.Infrastructure/Persistence/Migrations/ApplicationDbContextModelSnapshot.cs

@@ -2451,6 +2451,61 @@ namespace SolutionErp.Infrastructure.Persistence.Migrations
                     b.ToTable("PurchaseEvaluationCodeSequences", (string)null);
                 });
 
+            modelBuilder.Entity("SolutionErp.Domain.PurchaseEvaluations.PurchaseEvaluationDepartmentOpinion", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<Guid?>("CreatedBy")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<DateTime?>("DeletedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<Guid?>("DeletedBy")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("bit");
+
+                    b.Property<int>("Kind")
+                        .HasColumnType("int");
+
+                    b.Property<string>("Opinion")
+                        .HasMaxLength(2000)
+                        .HasColumnType("nvarchar(2000)");
+
+                    b.Property<Guid>("PurchaseEvaluationId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<DateTime?>("SignedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("UpdatedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<Guid?>("UpdatedBy")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<Guid?>("UserId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<string>("UserName")
+                        .HasMaxLength(200)
+                        .HasColumnType("nvarchar(200)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PurchaseEvaluationId", "Kind")
+                        .IsUnique();
+
+                    b.ToTable("PurchaseEvaluationDepartmentOpinions", (string)null);
+                });
+
             modelBuilder.Entity("SolutionErp.Domain.PurchaseEvaluations.PurchaseEvaluationDetail", b =>
                 {
                     b.Property<Guid>("Id")
@@ -3073,6 +3128,17 @@ namespace SolutionErp.Infrastructure.Persistence.Migrations
                     b.Navigation("PurchaseEvaluation");
                 });
 
+            modelBuilder.Entity("SolutionErp.Domain.PurchaseEvaluations.PurchaseEvaluationDepartmentOpinion", b =>
+                {
+                    b.HasOne("SolutionErp.Domain.PurchaseEvaluations.PurchaseEvaluation", "PurchaseEvaluation")
+                        .WithMany("DepartmentOpinions")
+                        .HasForeignKey("PurchaseEvaluationId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("PurchaseEvaluation");
+                });
+
             modelBuilder.Entity("SolutionErp.Domain.PurchaseEvaluations.PurchaseEvaluationDetail", b =>
                 {
                     b.HasOne("SolutionErp.Domain.PurchaseEvaluations.PurchaseEvaluation", "PurchaseEvaluation")
@@ -3199,6 +3265,8 @@ namespace SolutionErp.Infrastructure.Persistence.Migrations
 
                     b.Navigation("Changelogs");
 
+                    b.Navigation("DepartmentOpinions");
+
                     b.Navigation("Details");
 
                     b.Navigation("Quotes");