[CLAUDE] Domain+App+Infra+Api+FE-Admin+FE-User: S36 Plan G-O2 Phòng họp Mig 36 + BE CRUD + FE 2 app

Phase 10.2 G-O2 Phòng họp BookingCalendar — Mig 36 schema + BE CQRS + FE 2 app
mirror cookie-cutter G-H2 HrmConfig pattern. Standalone không depend workflow.

BE schema (Mig 36 — em main solo Step 4):
- 4 Domain new: MeetingRoom catalog + MeetingBooking header + MeetingBookingAttendee
  join table N-to-N (NOT JSON per Investigator verdict) + Enums (MeetingBookingStatus
  3-state: Confirmed/Cancelled/Completed)
- 3 EF Config: UNIQUE Code + composite index (RoomId, StartAt) range query + UNIQUE
  composite (BookingId, UserId) join
- FK strategy: Room→Restrict (preserve history) + Booking→Cascade attendees +
  User→Restrict (denorm FullName+Email tránh cascade wipe)
- Mig 36 3-file rule + ApplicationDbContextModelSnapshot updated + apply Dev+Design DB

BE CQRS (~584 LOC — Implementer Case 2):
- MeetingFeatures.cs 479 LOC 9 handler: 4 Room CRUD + 5 Booking (List + GetById +
  Create + Update + Cancel)
- SERIALIZABLE transaction overlap check via EXISTS query — throw 409 Conflict
  "Phòng đã được đặt trong khoảng thời gian này"
- MeetingRoomsController 49 LOC + MeetingBookingsController 56 LOC — class-level
  [Authorize] + Roles="Admin" for write
- Application.csproj +Microsoft.EntityFrameworkCore.Relational package (em main fix
  IsolationLevel overload — Implementer gotcha #53 4th truncation diagnose mid-task)
- MenuKeys.cs +4 const (Off_PhongHop sub-group + View/Manage/Book leaf)
- DbInitializer +SeedMeetingRoomsAsync 4 sample (PH-A Phòng họp lớn cap=20 + PH-B
  cap=8 + PHG-501 Giám đốc cap=6 + ONL-1 Online Zoom cap=50) — NOT gated DemoSeed
  per gotcha #51 INFRASTRUCTURE seed

FE 2 app (~1770 LOC × 2 — Implementer Case 2):
- types/meeting.ts × 2 SHA256 IDENTICAL (ce0ad9c6d017cde2) — DTO interface mirror
- MeetingCalendarPage.tsx × 2 SHA256 IDENTICAL (d6d160ae1e4f2285) ~530 LOC — custom
  HTML 7-day grid 8h-20h slot, NO FullCalendar dep (~80 KB bundle saved per
  Investigator verdict alternative)
- MeetingRoomsPage.tsx × 2 SHA256 IDENTICAL (ba35a7ef379a5e9c) ~270 LOC — admin
  catalog CRUD table + Dialog
- 4-place mirror Pattern 16-bis 7× cumulative: types + page + App.tsx route +
  menuKeys + Layout staticMap 3 entry (gotcha #50 silent sidebar drop prevention)

Verify:
- dotnet build SolutionErp.slnx PASS 0 error 2 pre-existing DocxRenderer warning
- dotnet test 130/130 PASS baseline preserve (58 Domain + 72 Infra)
- npm build × 2 app PASS 0 TS error (fe-admin 16.91s bundle 1490 KB / fe-user 8.56s
  bundle 1404 KB, +23 KB gzip both)

Pattern reinforced cumulative S36:
- Pattern 12-bis cross-module mirror 10× (PE → Contract V2 → Hrm → Office)
- Pattern 16-bis 4-place mirror cross-app 7×
- Smart Friend Implementer truncation gotcha #53 4th — mitigation tight brief WORK
  (FE 2 app no truncation, BE truncate diagnose mid only)

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

src/Backend/SolutionErp.Infrastructure/Persistence/Migrations/20260528074125_AddMeetingRooms.cs

@@ -0,0 +1,138 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace SolutionErp.Infrastructure.Persistence.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddMeetingRooms : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "MeetingRooms",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uniqueidentifier", nullable: false),
+                    Code = table.Column<string>(type: "nvarchar(20)", maxLength: 20, nullable: false),
+                    Name = table.Column<string>(type: "nvarchar(200)", maxLength: 200, nullable: false),
+                    Capacity = table.Column<int>(type: "int", nullable: false),
+                    Location = table.Column<string>(type: "nvarchar(200)", maxLength: 200, nullable: true),
+                    Equipment = table.Column<string>(type: "nvarchar(500)", maxLength: 500, nullable: true),
+                    IsActive = table.Column<bool>(type: "bit", nullable: false),
+                    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_MeetingRooms", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "MeetingBookings",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uniqueidentifier", nullable: false),
+                    RoomId = table.Column<Guid>(type: "uniqueidentifier", nullable: false),
+                    BookedByUserId = table.Column<Guid>(type: "uniqueidentifier", nullable: false),
+                    BookedByFullName = table.Column<string>(type: "nvarchar(200)", maxLength: 200, nullable: false),
+                    StartAt = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    EndAt = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    Title = table.Column<string>(type: "nvarchar(200)", maxLength: 200, nullable: false),
+                    Description = table.Column<string>(type: "nvarchar(1000)", maxLength: 1000, nullable: true),
+                    Status = table.Column<int>(type: "int", nullable: false),
+                    Note = table.Column<string>(type: "nvarchar(500)", maxLength: 500, 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_MeetingBookings", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_MeetingBookings_MeetingRooms_RoomId",
+                        column: x => x.RoomId,
+                        principalTable: "MeetingRooms",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Restrict);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "MeetingBookingAttendees",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uniqueidentifier", nullable: false),
+                    BookingId = table.Column<Guid>(type: "uniqueidentifier", nullable: false),
+                    UserId = table.Column<Guid>(type: "uniqueidentifier", nullable: false),
+                    FullName = table.Column<string>(type: "nvarchar(200)", maxLength: 200, nullable: false),
+                    Email = table.Column<string>(type: "nvarchar(200)", maxLength: 200, nullable: true),
+                    Notes = 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)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_MeetingBookingAttendees", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_MeetingBookingAttendees_MeetingBookings_BookingId",
+                        column: x => x.BookingId,
+                        principalTable: "MeetingBookings",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_MeetingBookingAttendees_BookingId_UserId",
+                table: "MeetingBookingAttendees",
+                columns: new[] { "BookingId", "UserId" },
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_MeetingBookingAttendees_UserId",
+                table: "MeetingBookingAttendees",
+                column: "UserId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_MeetingBookings_BookedByUserId",
+                table: "MeetingBookings",
+                column: "BookedByUserId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_MeetingBookings_RoomId_StartAt",
+                table: "MeetingBookings",
+                columns: new[] { "RoomId", "StartAt" });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_MeetingRooms_Code",
+                table: "MeetingRooms",
+                column: "Code",
+                unique: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "MeetingBookingAttendees");
+
+            migrationBuilder.DropTable(
+                name: "MeetingBookings");
+
+            migrationBuilder.DropTable(
+                name: "MeetingRooms");
+        }
+    }
+}

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

@@ -3448,6 +3448,181 @@ namespace SolutionErp.Infrastructure.Persistence.Migrations
                     b.ToTable("Notifications", (string)null);
                 });
 
+            modelBuilder.Entity("SolutionErp.Domain.Office.MeetingBooking", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<string>("BookedByFullName")
+                        .IsRequired()
+                        .HasMaxLength(200)
+                        .HasColumnType("nvarchar(200)");
+
+                    b.Property<Guid>("BookedByUserId")
+                        .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<string>("Description")
+                        .HasMaxLength(1000)
+                        .HasColumnType("nvarchar(1000)");
+
+                    b.Property<DateTime>("EndAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("bit");
+
+                    b.Property<string>("Note")
+                        .HasMaxLength(500)
+                        .HasColumnType("nvarchar(500)");
+
+                    b.Property<Guid>("RoomId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<DateTime>("StartAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasMaxLength(200)
+                        .HasColumnType("nvarchar(200)");
+
+                    b.Property<DateTime?>("UpdatedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<Guid?>("UpdatedBy")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("BookedByUserId");
+
+                    b.HasIndex("RoomId", "StartAt");
+
+                    b.ToTable("MeetingBookings", (string)null);
+                });
+
+            modelBuilder.Entity("SolutionErp.Domain.Office.MeetingBookingAttendee", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<Guid>("BookingId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<Guid?>("CreatedBy")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<string>("Email")
+                        .HasMaxLength(200)
+                        .HasColumnType("nvarchar(200)");
+
+                    b.Property<string>("FullName")
+                        .IsRequired()
+                        .HasMaxLength(200)
+                        .HasColumnType("nvarchar(200)");
+
+                    b.Property<string>("Notes")
+                        .HasMaxLength(200)
+                        .HasColumnType("nvarchar(200)");
+
+                    b.Property<DateTime?>("UpdatedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<Guid?>("UpdatedBy")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.HasIndex("BookingId", "UserId")
+                        .IsUnique();
+
+                    b.ToTable("MeetingBookingAttendees", (string)null);
+                });
+
+            modelBuilder.Entity("SolutionErp.Domain.Office.MeetingRoom", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<int>("Capacity")
+                        .HasColumnType("int");
+
+                    b.Property<string>("Code")
+                        .IsRequired()
+                        .HasMaxLength(20)
+                        .HasColumnType("nvarchar(20)");
+
+                    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<string>("Equipment")
+                        .HasMaxLength(500)
+                        .HasColumnType("nvarchar(500)");
+
+                    b.Property<bool>("IsActive")
+                        .HasColumnType("bit");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("bit");
+
+                    b.Property<string>("Location")
+                        .HasMaxLength(200)
+                        .HasColumnType("nvarchar(200)");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasMaxLength(200)
+                        .HasColumnType("nvarchar(200)");
+
+                    b.Property<DateTime?>("UpdatedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<Guid?>("UpdatedBy")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Code")
+                        .IsUnique();
+
+                    b.ToTable("MeetingRooms", (string)null);
+                });
+
             modelBuilder.Entity("SolutionErp.Domain.PurchaseEvaluations.PurchaseEvaluation", b =>
                 {
                     b.Property<Guid>("Id")
@@ -4690,6 +4865,28 @@ namespace SolutionErp.Infrastructure.Persistence.Migrations
                         .OnDelete(DeleteBehavior.Restrict);
                 });
 
+            modelBuilder.Entity("SolutionErp.Domain.Office.MeetingBooking", b =>
+                {
+                    b.HasOne("SolutionErp.Domain.Office.MeetingRoom", "Room")
+                        .WithMany()
+                        .HasForeignKey("RoomId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.Navigation("Room");
+                });
+
+            modelBuilder.Entity("SolutionErp.Domain.Office.MeetingBookingAttendee", b =>
+                {
+                    b.HasOne("SolutionErp.Domain.Office.MeetingBooking", "Booking")
+                        .WithMany("Attendees")
+                        .HasForeignKey("BookingId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Booking");
+                });
+
             modelBuilder.Entity("SolutionErp.Domain.PurchaseEvaluations.PurchaseEvaluation", b =>
                 {
                     b.HasOne("SolutionErp.Domain.ApprovalWorkflowsV2.ApprovalWorkflow", null)
@@ -4924,6 +5121,11 @@ namespace SolutionErp.Infrastructure.Persistence.Migrations
                     b.Navigation("Permissions");
                 });
 
+            modelBuilder.Entity("SolutionErp.Domain.Office.MeetingBooking", b =>
+                {
+                    b.Navigation("Attendees");
+                });
+
             modelBuilder.Entity("SolutionErp.Domain.PurchaseEvaluations.PurchaseEvaluation", b =>
                 {
                     b.Navigation("Approvals");