[CLAUDE] Infra: Mig 27 — Chunk A MenuItem +IsVisible +DisplayLabel

Session 20 turn 7: admin có thể Ẩn/Hiện + Đổi tên hiển thị menu cho fe-user
(eOffice). Admin sidebar luôn giữ Label gốc (user Q2=b "chỉ của eOffice thôi").

Domain MenuItem: +IsVisible bool=true +DisplayLabel string?(200)
EF Configuration: HasDefaultValue(true) + HasMaxLength(200)
Migration 27 AddVisibilityAndDisplayLabelToMenuItems — 3-file rule:
  + AddColumn IsVisible bit NOT NULL DEFAULT 1
  + AddColumn DisplayLabel nvarchar(200) NULL

Verify:
- dotnet build SolutionErp.slnx — 0 warn / 0 err
- dotnet ef database update --connection SolutionErp_Dev — applied OK
- dotnet ef database update SolutionErp_Design — applied OK

Pending: B (BE API) → C (FE admin page) → D (FE user render) → E (Docs)

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

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

@@ -15,6 +15,8 @@ public class MenuItemConfiguration : IEntityTypeConfiguration<MenuItem>
         b.Property(x => x.Label).HasMaxLength(200).IsRequired();
         b.Property(x => x.ParentKey).HasMaxLength(50);
         b.Property(x => x.Icon).HasMaxLength(50);
+        b.Property(x => x.IsVisible).HasDefaultValue(true);
+        b.Property(x => x.DisplayLabel).HasMaxLength(200);
 
         b.HasOne(x => x.Parent)
             .WithMany(x => x.Children)

src/Backend/SolutionErp.Infrastructure/Persistence/Migrations/20260511042830_AddVisibilityAndDisplayLabelToMenuItems.cs

@@ -0,0 +1,40 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace SolutionErp.Infrastructure.Persistence.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddVisibilityAndDisplayLabelToMenuItems : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<string>(
+                name: "DisplayLabel",
+                table: "MenuItems",
+                type: "nvarchar(200)",
+                maxLength: 200,
+                nullable: true);
+
+            migrationBuilder.AddColumn<bool>(
+                name: "IsVisible",
+                table: "MenuItems",
+                type: "bit",
+                nullable: false,
+                defaultValue: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "DisplayLabel",
+                table: "MenuItems");
+
+            migrationBuilder.DropColumn(
+                name: "IsVisible",
+                table: "MenuItems");
+        }
+    }
+}

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

@@ -1799,10 +1799,19 @@ namespace SolutionErp.Infrastructure.Persistence.Migrations
                         .HasMaxLength(50)
                         .HasColumnType("nvarchar(50)");
 
+                    b.Property<string>("DisplayLabel")
+                        .HasMaxLength(200)
+                        .HasColumnType("nvarchar(200)");
+
                     b.Property<string>("Icon")
                         .HasMaxLength(50)
                         .HasColumnType("nvarchar(50)");
 
+                    b.Property<bool>("IsVisible")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bit")
+                        .HasDefaultValue(true);
+
                     b.Property<string>("Label")
                         .IsRequired()
                         .HasMaxLength(200)