feat(work-orders): add weekly board read API (Phase 1)

- GET /api/workorders/board with week window, Unscheduled section, and X of Y counts
- GET /api/workorders/lookups/dispatchers for SHOC filter avatars
- Board projection via WorkOrderBoardDataService with vendor/dispatch join and derived isPastDue
- Phase1_BoardIndexes migration (IX_workOrders_ScheduledDate)
- 5 board unit tests

Api.SeaHavenIndustries/Controllers/WorkOrderController.cs

@@ -42,6 +42,7 @@ namespace Api.SeaHavenIndustries.Controllers
         private readonly Helper.SendMessage _sendMessage;
         private readonly Helper.VendorPortalTokenService _vendorTokens;
         private readonly IConfiguration _config;
+        private readonly IWorkOrderBoardService _workOrderBoardService;
 
         public WorkOrderController(
             UserManager<ApplicationUser> userManager,
@@ -58,7 +59,8 @@ namespace Api.SeaHavenIndustries.Controllers
             IHttpContextAccessor httpContext,
             Helper.SendMessage sendMessage,
             Helper.VendorPortalTokenService vendorTokens,
-            IConfiguration config)
+            IConfiguration config,
+            IWorkOrderBoardService workOrderBoardService)
         {
             _userManager = userManager;
             _workOrderService = workOrderService;
@@ -75,7 +77,40 @@ namespace Api.SeaHavenIndustries.Controllers
             _sendMessage = sendMessage;
             _vendorTokens = vendorTokens;
             _config = config;
+            _workOrderBoardService = workOrderBoardService;
         }
+
+        [HttpGet("board")]
+        public async Task<IActionResult> GetBoard(
+            [FromQuery] DateOnly weekStart,
+            [FromQuery] DateOnly? weekEnd = null,
+            [FromQuery] List<string>? dispatchers = null,
+            [FromQuery] bool myWorkOrders = false,
+            [FromQuery] List<WorkOrderType>? types = null,
+            [FromQuery] string? search = null)
+        {
+            var userId = User.FindFirstValue(ClaimTypes.NameIdentifier);
+            var query = new WorkOrderBoardQueryDto
+            {
+                WeekStart = weekStart,
+                WeekEnd = weekEnd,
+                Dispatchers = dispatchers,
+                MyWorkOrders = myWorkOrders,
+                Types = types,
+                Search = search
+            };
+
+            var result = await _workOrderBoardService.GetBoardAsync(query, userId);
+            return Ok(result);
+        }
+
+        [HttpGet("lookups/dispatchers")]
+        public async Task<IActionResult> GetDispatcherLookups()
+        {
+            var result = await _workOrderBoardService.GetDispatcherLookupsAsync();
+            return Ok(result);
+        }
+
         [HttpPost]
         [Route("AddWorkorder")]
         public async Task<IActionResult> Addworkorder([FromForm] Workorder_DTO model)

Data.SeaHavenIndustries/Migrations/20260701120000_Phase1_BoardIndexes.cs

@@ -0,0 +1,36 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Data.SeaHavenIndustries.Migrations
+{
+    /// <inheritdoc />
+    public class Phase1_BoardIndexes : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.Sql("""
+                IF NOT EXISTS (
+                    SELECT 1 FROM sys.indexes
+                    WHERE name = 'IX_workOrders_ScheduledDate'
+                      AND object_id = OBJECT_ID('workOrders'))
+                BEGIN
+                    CREATE INDEX IX_workOrders_ScheduledDate ON workOrders (ScheduledDate);
+                END
+                """);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.Sql("""
+                IF EXISTS (
+                    SELECT 1 FROM sys.indexes
+                    WHERE name = 'IX_workOrders_ScheduledDate'
+                      AND object_id = OBJECT_ID('workOrders'))
+                    DROP INDEX IX_workOrders_ScheduledDate ON workOrders;
+                """);
+        }
+    }
+}

Data.SeaHavenIndustries/Migrations/ApplicationDbContextModelSnapshot.cs

@@ -2035,6 +2035,8 @@ namespace Data.SeaHavenIndustries.Migrations
 
                     b.HasIndex("PrimaryDispatchId");
 
+                    b.HasIndex("ScheduledDate");
+
                     b.ToTable("workOrders");
                 });
 

SeaHaven.DataServices/Board/WorkOrderBoardConstants.cs

@@ -0,0 +1,7 @@
+namespace SeaHaven.DataServices.Board
+{
+    public static class WorkOrderBoardConstants
+    {
+        public const int ClientSideThreshold = 300;
+    }
+}

SeaHaven.DataServices/DTOs/WorkOrderBoardQuery.cs

@@ -0,0 +1,10 @@
+namespace SeaHaven.DataServices.DTOs
+{
+    public record WorkOrderBoardQuery(
+        DateOnly ScheduledFrom,
+        DateOnly ScheduledTo,
+        string? Search,
+        IReadOnlyList<string>? AssigneeIds,
+        IReadOnlyList<string>? DbStatuses,
+        int? LocationId);
+}

SeaHaven.DataServices/DTOs/WorkOrderBoardRowData.cs

@@ -0,0 +1,20 @@
+namespace SeaHaven.DataServices.DTOs
+{
+    public record WorkOrderBoardRowData(
+        int Id,
+        string? WoNumber,
+        string? SiteCode,
+        string? LocationLabel,
+        DateTime? ScheduledDate,
+        DateTime? ScheduledStart,
+        DateTime? DueDate,
+        string? WorkOrderType,
+        string? ServiceType,
+        string? AssigneeId,
+        string? AssigneeName,
+        string? VendorCompany,
+        string? VendorTechnician,
+        string? Status,
+        string? PocName,
+        string? PocPhone);
+}

SeaHaven.DataServices/Exceptions/BoardQueryException.cs

@@ -0,0 +1,9 @@
+namespace SeaHaven.DataServices.Exceptions
+{
+    public class BoardQueryException : Exception
+    {
+        public BoardQueryException(string message) : base(message)
+        {
+        }
+    }
+}

SeaHaven.DataServices/Helpers/WorkOrderBoardProjection.cs

@@ -0,0 +1,102 @@
+using Data.SeaHavenIndustries;
+using Microsoft.EntityFrameworkCore;
+using SeaHaven.DataServices.Interfaces;
+
+namespace SeaHaven.DataServices.Helpers
+{
+    public static class WorkOrderBoardProjection
+    {
+        public static async Task<IReadOnlyList<WorkOrderBoardRawRow>> ProjectRowsAsync(
+            IQueryable<WorkOrder> query,
+            bool isUnscheduled)
+        {
+            var rows = await query
+                .Select(w => new
+                {
+                    w.Id,
+                    w.InternalWONumber,
+                    w.RescheduleCount,
+                    w.CarriedOver,
+                    w.WorkOrderType,
+                    w.SiteCode,
+                    LocationName = w.Locations != null ? w.Locations.Name : null,
+                    Poc = w.WorkOrderContacts!
+                        .OrderBy(c => c.Id)
+                        .Select(c => new
+                        {
+                            Name = c.POC != null
+                                ? ((c.POC.FirstName ?? "") + " " + (c.POC.LastName ?? "")).Trim()
+                                : null,
+                            c.POC!.PhoneNumber,
+                            c.Notes
+                        })
+                        .FirstOrDefault(),
+                    w.LifecycleStatus,
+                    w.LegacyStatus,
+                    w.Status,
+                    w.AssignTo,
+                    w.AssignToUser!.FirstName,
+                    w.AssignToUser!.LastName,
+                    w.AssignToUser!.Initials,
+                    w.AssignToUser!.Color,
+                    w.DueDate,
+                    w.ScheduledDate,
+                    w.ScheduledStart,
+                    w.ScheduledEnd,
+                    w.TargetWeek,
+                    w.ScheduleWeekOnly,
+                    VendorId = w.PrimaryDispatch != null ? (int?)w.PrimaryDispatch.VendorId : null,
+                    VendorName = w.PrimaryDispatch != null && w.PrimaryDispatch.Vendor != null
+                        ? w.PrimaryDispatch.Vendor.CompanyName
+                        : null,
+                    TechName = w.PrimaryDispatch != null && w.PrimaryDispatch.Vendor != null
+                        ? w.PrimaryDispatch.Vendor.ContactName
+                        : null,
+                    TechPhone = w.PrimaryDispatch != null && w.PrimaryDispatch.Vendor != null
+                        ? w.PrimaryDispatch.Vendor.Phone
+                        : null,
+                    DispatchApptDate = w.PrimaryDispatch != null ? w.PrimaryDispatch.ScheduledDate : null,
+                    w.Trade,
+                    w.Problem,
+                    w.DocStatus,
+                    w.RowVersion
+                })
+                .ToListAsync();
+
+            return rows.Select(w => new WorkOrderBoardRawRow(
+                w.Id,
+                w.InternalWONumber,
+                w.RescheduleCount,
+                w.CarriedOver,
+                w.WorkOrderType,
+                w.SiteCode,
+                w.LocationName,
+                w.Poc?.Name,
+                w.Poc?.PhoneNumber,
+                w.Poc?.Notes,
+                w.LifecycleStatus,
+                w.LegacyStatus ?? w.Status,
+                w.AssignTo,
+                w.FirstName,
+                w.LastName,
+                w.Initials,
+                w.Color,
+                w.DueDate,
+                w.ScheduledDate,
+                w.ScheduledStart,
+                w.ScheduledEnd,
+                w.TargetWeek,
+                w.ScheduleWeekOnly,
+                w.VendorId,
+                w.VendorName,
+                w.TechName,
+                w.TechPhone,
+                w.DispatchApptDate,
+                w.Trade ?? w.Problem,
+                w.Problem,
+                w.DocStatus,
+                w.RowVersion,
+                isUnscheduled)).ToList();
+        }
+    }
+}

SeaHaven.DataServices/Helpers/WorkOrderBoardQueryFilters.cs

@@ -0,0 +1,138 @@
+using Data.SeaHavenIndustries;
+using Data.SeaHavenIndustries.Enums;
+
+namespace SeaHaven.DataServices.Helpers
+{
+    public static class WorkOrderBoardQueryFilters
+    {
+        public static IQueryable<WorkOrder> ApplyBaseScope(IQueryable<WorkOrder> query)
+            => query.Where(w => w.istemplate != true && (w.IsDeleted != true || w.IsDeleted == null));
+
+        public static IQueryable<WorkOrder> ApplyDispatcherFilter(
+            IQueryable<WorkOrder> query,
+            IReadOnlyList<string>? dispatchers,
+            bool myWorkOrders,
+            string? currentUserId)
+        {
+            if (myWorkOrders && !string.IsNullOrEmpty(currentUserId))
+                return query.Where(w => w.AssignTo == currentUserId);
+
+            if (dispatchers == null || dispatchers.Count == 0)
+                return query;
+
+            var ids = dispatchers
+                .Where(d => d != "__unassigned__")
+                .ToList();
+            var includeUnassigned = dispatchers.Contains("__unassigned__");
+
+            if (includeUnassigned && ids.Count == 0)
+                return query.Where(w => w.AssignTo == null || w.AssignTo == "");
+
+            if (includeUnassigned && ids.Count > 0)
+            {
+                return query.Where(w =>
+                    w.AssignTo == null || w.AssignTo == "" || ids.Contains(w.AssignTo));
+            }
+
+            return query.Where(w => w.AssignTo != null && ids.Contains(w.AssignTo));
+        }
+
+        public static IQueryable<WorkOrder> ApplyTypeFilter(
+            IQueryable<WorkOrder> query,
+            IReadOnlyList<WorkOrderType>? types)
+        {
+            if (types == null || types.Count == 0)
+                return query;
+
+            return query.Where(w => w.WorkOrderType != null && types.Contains(w.WorkOrderType.Value));
+        }
+
+        public static IQueryable<WorkOrder> ApplySiteFilter(
+            IQueryable<WorkOrder> query,
+            IReadOnlyList<string>? sites)
+        {
+            if (sites == null || sites.Count == 0)
+                return query;
+
+            var normalized = sites
+                .Where(s => !string.IsNullOrWhiteSpace(s))
+                .Select(s => s.Trim())
+                .ToList();
+
+            if (normalized.Count == 0)
+                return query;
+
+            return query.Where(w => w.SiteCode != null && normalized.Contains(w.SiteCode));
+        }
+
+        public static IQueryable<WorkOrder> ApplyStatusFilter(
+            IQueryable<WorkOrder> query,
+            IReadOnlyList<LifecycleStatus>? statuses)
+        {
+            if (statuses == null || statuses.Count == 0)
+                return query;
+
+            return query.Where(w => w.LifecycleStatus != null && statuses.Contains(w.LifecycleStatus.Value));
+        }
+
+        public static IQueryable<WorkOrder> ApplyDocStatusFilter(
+            IQueryable<WorkOrder> query,
+            IReadOnlyList<DocStatus>? docStatuses)
+        {
+            if (docStatuses == null || docStatuses.Count == 0)
+                return query;
+
+            return query.Where(w => w.DocStatus != null && docStatuses.Contains(w.DocStatus.Value));
+        }
+
+        public static IQueryable<WorkOrder> ApplyVendorFilter(
+            IQueryable<WorkOrder> query,
+            IReadOnlyList<int>? vendorIds)
+        {
+            if (vendorIds == null || vendorIds.Count == 0)
+                return query;
+
+            return query.Where(w =>
+                w.PrimaryDispatch != null && vendorIds.Contains(w.PrimaryDispatch.VendorId));
+        }
+
+        public static IQueryable<WorkOrder> ApplyPmTypeFilter(
+            IQueryable<WorkOrder> query,
+            IReadOnlyList<string>? pmTypes)
+        {
+            if (pmTypes == null || pmTypes.Count == 0)
+                return query;
+
+            var normalized = pmTypes
+                .Where(p => !string.IsNullOrWhiteSpace(p))
+                .Select(p => p.Trim().ToLower())
+                .ToList();
+
+            if (normalized.Count == 0)
+                return query;
+
+            return query.Where(w =>
+                normalized.Any(pm =>
+                    (w.Trade ?? "").ToLower().Contains(pm)
+                    || (w.Problem ?? "").ToLower().Contains(pm)));
+        }
+
+        public static IQueryable<WorkOrder> ApplyDateRangeFilter(
+            IQueryable<WorkOrder> query,
+            DateOnly dateFrom,
+            DateOnly dateTo)
+        {
+            var fromDate = dateFrom.ToDateTime(TimeOnly.MinValue).Date;
+            var toDate = dateTo.ToDateTime(TimeOnly.MinValue).Date;
+
+            return query.Where(w =>
+                (w.ScheduledDate != null
+                 && w.ScheduledDate.Value.Date >= fromDate
+                 && w.ScheduledDate.Value.Date <= toDate)
+                || (w.ScheduleWeekOnly == true
+                    && w.TargetWeek != null
+                    && w.TargetWeek >= dateFrom
+                    && w.TargetWeek <= dateTo));
+        }
+    }
+}

SeaHaven.DataServices/Implementation/WorkOrderBoardDataService.cs

@@ -0,0 +1,219 @@
+using Data.SeaHavenIndustries;
+using Data.SeaHavenIndustries.Enums;
+using Microsoft.EntityFrameworkCore;
+using SeaHaven.DataServices.Interfaces;
+
+namespace SeaHaven.DataServices.Implementation
+{
+    public class WorkOrderBoardDataService : IWorkOrderBoardDataService
+    {
+        private readonly ApplicationDbContext _context;
+
+        public WorkOrderBoardDataService(ApplicationDbContext context)
+        {
+            _context = context;
+        }
+
+        public async Task<WorkOrderBoardQueryResult> GetBoardRowsAsync(WorkOrderBoardQuery query)
+        {
+            var weekStartDate = query.WeekStart.ToDateTime(TimeOnly.MinValue);
+            var weekEndDate = query.WeekEnd.ToDateTime(TimeOnly.MinValue);
+
+            var baseQuery = _context.workOrders
+                .AsNoTracking()
+                .Where(w => w.istemplate != true && (w.IsDeleted != true || w.IsDeleted == null));
+
+            baseQuery = ApplyDispatcherFilter(baseQuery, query);
+            baseQuery = ApplyTypeFilter(baseQuery, query);
+
+            var scheduledBase = baseQuery.Where(w =>
+                (w.ScheduledDate != null
+                 && w.ScheduledDate.Value.Date >= weekStartDate.Date
+                 && w.ScheduledDate.Value.Date <= weekEndDate.Date)
+                || (w.ScheduleWeekOnly == true && w.TargetWeek == query.WeekStart));
+
+            var unscheduledBase = baseQuery.Where(w =>
+                w.ScheduledDate == null
+                && w.LifecycleStatus != LifecycleStatus.Completed
+                && w.LifecycleStatus != LifecycleStatus.Canceled);
+
+            var scheduledTotal = await scheduledBase.CountAsync();
+
+            if (!string.IsNullOrWhiteSpace(query.Search))
+            {
+                scheduledBase = ApplySearchFilter(scheduledBase, query.Search);
+                unscheduledBase = ApplySearchFilter(unscheduledBase, query.Search);
+            }
+
+            var scheduledRows = await ProjectRows(scheduledBase, isUnscheduled: false);
+            var unscheduledRows = await ProjectRows(unscheduledBase, isUnscheduled: true);
+
+            return new WorkOrderBoardQueryResult(scheduledRows, unscheduledRows, scheduledTotal);
+        }
+
+        public async Task<IReadOnlyList<DispatcherLookupRow>> GetDispatcherLookupsAsync()
+        {
+            return await _context.Users
+                .AsNoTracking()
+                .Where(u => u.IsDeleted != true)
+                .OrderBy(u => u.FirstName)
+                .ThenBy(u => u.LastName)
+                .Select(u => new DispatcherLookupRow(
+                    u.Id,
+                    u.FirstName ?? "",
+                    u.LastName,
+                    u.Initials,
+                    u.Color))
+                .ToListAsync();
+        }
+
+        private static IQueryable<WorkOrder> ApplyDispatcherFilter(IQueryable<WorkOrder> query, WorkOrderBoardQuery boardQuery)
+        {
+            if (boardQuery.MyWorkOrders && !string.IsNullOrEmpty(boardQuery.CurrentUserId))
+                return query.Where(w => w.AssignTo == boardQuery.CurrentUserId);
+
+            if (boardQuery.Dispatchers == null || boardQuery.Dispatchers.Count == 0)
+                return query;
+
+            var ids = boardQuery.Dispatchers
+                .Where(d => d != "__unassigned__")
+                .ToList();
+            var includeUnassigned = boardQuery.Dispatchers.Contains("__unassigned__");
+
+            if (includeUnassigned && ids.Count == 0)
+                return query.Where(w => w.AssignTo == null || w.AssignTo == "");
+
+            if (includeUnassigned && ids.Count > 0)
+            {
+                return query.Where(w =>
+                    w.AssignTo == null || w.AssignTo == "" || ids.Contains(w.AssignTo));
+            }
+
+            return query.Where(w => w.AssignTo != null && ids.Contains(w.AssignTo));
+        }
+
+        private static IQueryable<WorkOrder> ApplyTypeFilter(IQueryable<WorkOrder> query, WorkOrderBoardQuery boardQuery)
+        {
+            if (boardQuery.Types == null || boardQuery.Types.Count == 0)
+                return query;
+
+            return query.Where(w => w.WorkOrderType != null && boardQuery.Types.Contains(w.WorkOrderType.Value));
+        }
+
+        private static IQueryable<WorkOrder> ApplySearchFilter(IQueryable<WorkOrder> query, string search)
+        {
+            var s = search.Trim().ToLower();
+            return query.Where(w =>
+                (w.SiteCode ?? "").ToLower().Contains(s)
+                || (w.InternalWONumber ?? "").ToLower().Contains(s)
+                || (w.WorkerOrderNumber ?? "").ToLower().Contains(s)
+                || (w.Locations != null && (w.Locations.Name ?? "").ToLower().Contains(s))
+                || (w.AssignToUser != null && ((w.AssignToUser.FirstName ?? "") + " " + (w.AssignToUser.LastName ?? "")).ToLower().Contains(s))
+                || (w.Trade ?? "").ToLower().Contains(s)
+                || (w.Problem ?? "").ToLower().Contains(s)
+                || (w.PrimaryDispatch != null && w.PrimaryDispatch.Vendor != null && (w.PrimaryDispatch.Vendor.CompanyName ?? "").ToLower().Contains(s))
+                || (w.Status ?? "").ToLower().Contains(s));
+        }
+
+        private async Task<IReadOnlyList<WorkOrderBoardRawRow>> ProjectRows(
+            IQueryable<WorkOrder> query,
+            bool isUnscheduled)
+        {
+            var rows = await query
+                .Include(w => w.AssignToUser)
+                .Include(w => w.Locations)
+                .Include(w => w.PrimaryDispatch!)
+                    .ThenInclude(d => d!.Vendor)
+                .Include(w => w.WorkOrderContacts!)
+                    .ThenInclude(c => c.POC)
+                .OrderBy(w => w.ScheduledDate)
+                .ThenBy(w => w.InternalWONumber)
+                .Select(w => new
+                {
+                    w.Id,
+                    w.InternalWONumber,
+                    w.RescheduleCount,
+                    w.CarriedOver,
+                    w.WorkOrderType,
+                    w.SiteCode,
+                    LocationName = w.Locations != null ? w.Locations.Name : null,
+                    Poc = w.WorkOrderContacts!
+                        .OrderBy(c => c.Id)
+                        .Select(c => new
+                        {
+                            Name = c.POC != null
+                                ? ((c.POC.FirstName ?? "") + " " + (c.POC.LastName ?? "")).Trim()
+                                : null,
+                            c.POC!.PhoneNumber,
+                            c.Notes
+                        })
+                        .FirstOrDefault(),
+                    w.LifecycleStatus,
+                    w.LegacyStatus,
+                    w.Status,
+                    w.AssignTo,
+                    w.AssignToUser!.FirstName,
+                    w.AssignToUser!.LastName,
+                    w.AssignToUser!.Initials,
+                    w.AssignToUser!.Color,
+                    w.DueDate,
+                    w.ScheduledDate,
+                    w.ScheduledStart,
+                    w.ScheduledEnd,
+                    w.TargetWeek,
+                    w.ScheduleWeekOnly,
+                    VendorId = w.PrimaryDispatch != null ? (int?)w.PrimaryDispatch.VendorId : null,
+                    VendorName = w.PrimaryDispatch != null && w.PrimaryDispatch.Vendor != null
+                        ? w.PrimaryDispatch.Vendor.CompanyName
+                        : null,
+                    TechName = w.PrimaryDispatch != null && w.PrimaryDispatch.Vendor != null
+                        ? w.PrimaryDispatch.Vendor.ContactName
+                        : null,
+                    TechPhone = w.PrimaryDispatch != null && w.PrimaryDispatch.Vendor != null
+                        ? w.PrimaryDispatch.Vendor.Phone
+                        : null,
+                    DispatchApptDate = w.PrimaryDispatch != null ? w.PrimaryDispatch.ScheduledDate : null,
+                    w.Trade,
+                    w.Problem,
+                    w.DocStatus,
+                    w.RowVersion
+                })
+                .ToListAsync();
+
+            return rows.Select(w => new WorkOrderBoardRawRow(
+                w.Id,
+                w.InternalWONumber,
+                w.RescheduleCount,
+                w.CarriedOver,
+                w.WorkOrderType,
+                w.SiteCode,
+                w.LocationName,
+                w.Poc?.Name,
+                w.Poc?.PhoneNumber,
+                w.Poc?.Notes,
+                w.LifecycleStatus,
+                w.LegacyStatus ?? w.Status,
+                w.AssignTo,
+                w.FirstName,
+                w.LastName,
+                w.Initials,
+                w.Color,
+                w.DueDate,
+                w.ScheduledDate,
+                w.ScheduledStart,
+                w.ScheduledEnd,
+                w.TargetWeek,
+                w.ScheduleWeekOnly,
+                w.VendorId,
+                w.VendorName,
+                w.TechName,
+                w.TechPhone,
+                w.DispatchApptDate,
+                w.Trade ?? w.Problem,
+                w.Problem,
+                w.DocStatus,
+                w.RowVersion,
+                isUnscheduled)).ToList();
+        }
+    }
+}

SeaHaven.DataServices/Interfaces/IWorkOrderBoardDataService.cs

@@ -0,0 +1,10 @@
+using SeaHaven.DataServices.Interfaces;
+
+namespace SeaHaven.DataServices.Interfaces
+{
+    public interface IWorkOrderBoardDataService
+    {
+        Task<WorkOrderBoardQueryResult> GetBoardRowsAsync(WorkOrderBoardQuery query);
+        Task<IReadOnlyList<DispatcherLookupRow>> GetDispatcherLookupsAsync();
+    }
+}

SeaHaven.DataServices/Interfaces/PrimaryDispatchProjection.cs

@@ -0,0 +1,9 @@
+namespace SeaHaven.DataServices.Interfaces
+{
+    public record PrimaryDispatchProjection(
+        int WorkOrderId,
+        int? DispatchId,
+        string? VendorName,
+        DateTime? ApptDate,
+        string? DispatchStatus);
+}

SeaHaven.DataServices/Interfaces/WorkOrderBoardModels.cs

@@ -0,0 +1,60 @@
+using Data.SeaHavenIndustries.Enums;
+
+namespace SeaHaven.DataServices.Interfaces
+{
+    public record WorkOrderBoardQuery(
+        DateOnly WeekStart,
+        DateOnly WeekEnd,
+        IReadOnlyList<string>? Dispatchers,
+        bool MyWorkOrders,
+        IReadOnlyList<WorkOrderType>? Types,
+        string? Search,
+        string? CurrentUserId);
+
+    public record WorkOrderBoardRawRow(
+        int Id,
+        string? InternalWONumber,
+        int RescheduleCount,
+        int CarriedOver,
+        WorkOrderType? WorkOrderType,
+        string? SiteCode,
+        string? LocationName,
+        string? PocName,
+        string? PocPhone,
+        string? PocNotes,
+        LifecycleStatus? LifecycleStatus,
+        string? LegacyStatus,
+        string? AssignTo,
+        string? DispatcherFirstName,
+        string? DispatcherLastName,
+        string? Initials,
+        string? Color,
+        DateTime? DueDate,
+        DateTime? ScheduledDate,
+        DateTime? ScheduledStart,
+        DateTime? ScheduledEnd,
+        DateOnly? TargetWeek,
+        bool? ScheduleWeekOnly,
+        int? VendorId,
+        string? VendorName,
+        string? TechName,
+        string? TechPhone,
+        DateTime? DispatchApptDate,
+        string? Trade,
+        string? Problem,
+        DocStatus? DocStatus,
+        byte[]? RowVersion,
+        bool IsUnscheduled);
+
+    public record WorkOrderBoardQueryResult(
+        IReadOnlyList<WorkOrderBoardRawRow> ScheduledRows,
+        IReadOnlyList<WorkOrderBoardRawRow> UnscheduledRows,
+        int ScheduledTotalBeforeSearch);
+
+    public record DispatcherLookupRow(
+        string Id,
+        string FirstName,
+        string? LastName,
+        string? Initials,
+        string? Color);
+}

SeaHaven.Services/Board/WorkOrderBoardConstants.cs

@@ -0,0 +1,8 @@
+namespace SeaHaven.Services.Board
+{
+    public static class WorkOrderBoardConstants
+    {
+        public const int MaxWindowDays = 90;
+        public const int ClientSideThreshold = 300;
+    }
+}

SeaHaven.Services/DTOs/WorkOrderBoardDTOs.cs

@@ -0,0 +1,73 @@
+using Data.SeaHavenIndustries.Enums;
+
+namespace SeaHaven.Services.DTOs
+{
+    public class WorkOrderBoardQueryDto
+    {
+        public DateOnly WeekStart { get; set; }
+        public DateOnly? WeekEnd { get; set; }
+        public List<string>? Dispatchers { get; set; }
+        public bool MyWorkOrders { get; set; }
+        public List<WorkOrderType>? Types { get; set; }
+        public string? Search { get; set; }
+    }
+
+    public class WorkOrderBoardCountsDto
+    {
+        public int Returned { get; set; }
+        public int Total { get; set; }
+    }
+
+    public class WorkOrderBoardRowDto
+    {
+        public int Id { get; set; }
+        public string? WoNumber { get; set; }
+        public int RescheduleCount { get; set; }
+        public int CarriedOver { get; set; }
+        public WorkOrderType? WorkOrderType { get; set; }
+        public bool IsPastDue { get; set; }
+        public string? SiteCode { get; set; }
+        public string? LocationName { get; set; }
+        public string? PocName { get; set; }
+        public string? PocPhone { get; set; }
+        public string? PocNotes { get; set; }
+        public LifecycleStatus? LifecycleStatus { get; set; }
+        public string? LifecycleStatusLabel { get; set; }
+        public string? LegacyStatus { get; set; }
+        public string? DispatcherId { get; set; }
+        public string? DispatcherName { get; set; }
+        public string? Initials { get; set; }
+        public string? Color { get; set; }
+        public DateTime? DueDate { get; set; }
+        public DateTime? ScheduledDate { get; set; }
+        public DateOnly? TargetWeek { get; set; }
+        public bool? ScheduleWeekOnly { get; set; }
+        public string? DayGroup { get; set; }
+        public int? VendorId { get; set; }
+        public string? VendorName { get; set; }
+        public string? TechName { get; set; }
+        public string? TechPhone { get; set; }
+        public DateTime? ApptDate { get; set; }
+        public string? ApptTime { get; set; }
+        public string? Pm { get; set; }
+        public DocStatus? DocStatus { get; set; }
+        public byte[]? RowVersion { get; set; }
+    }
+
+    public class WorkOrderBoardResponseDto
+    {
+        public DateOnly WeekStart { get; set; }
+        public DateOnly WeekEnd { get; set; }
+        public WorkOrderBoardCountsDto Counts { get; set; } = new();
+        public List<WorkOrderBoardRowDto> Unscheduled { get; set; } = new();
+        public List<WorkOrderBoardRowDto> Scheduled { get; set; } = new();
+    }
+
+    public class DispatcherLookupDto
+    {
+        public string Id { get; set; } = "";
+        public string Name { get; set; } = "";
+        public string? Initials { get; set; }
+        public string? Color { get; set; }
+    }
+}

SeaHaven.Services/Helpers/WorkOrderBoardApptTimeParser.cs

@@ -0,0 +1,57 @@
+namespace SeaHaven.Services.Helpers
+{
+    public static class WorkOrderBoardApptTimeParser
+    {
+        public static bool TryParse(string? value, out TimeSpan? start, out TimeSpan? end, out string? error)
+        {
+            start = null;
+            end = null;
+            error = null;
+
+            if (string.IsNullOrWhiteSpace(value))
+                return true;
+
+            var trimmed = value.Trim();
+            var parts = trimmed.Split(new[] { '–', '—', '-' })
+                .Select(p => p.Trim())
+                .Where(p => !string.IsNullOrEmpty(p))
+                .ToArray();
+
+            if (parts.Length == 1)
+            {
+                if (!TimeSpan.TryParse(parts[0], out var single))
+                {
+                    error = "Invalid appointment time format.";
+                    return false;
+                }
+
+                start = single;
+                return true;
+            }
+
+            if (parts.Length == 2)
+            {
+                if (!TimeSpan.TryParse(parts[0], out var startTime) || !TimeSpan.TryParse(parts[1], out var endTime))
+                {
+                    error = "Invalid appointment time range format.";
+                    return false;
+                }
+
+                start = startTime;
+                end = endTime;
+                return true;
+            }
+
+            error = "Invalid appointment time format.";
+            return false;
+        }
+
+        public static DateTime? CombineDateAndTime(DateTime? date, TimeSpan? time)
+        {
+            if (!date.HasValue || !time.HasValue)
+                return date;
+
+            return date.Value.Date.Add(time.Value);
+        }
+    }
+}

SeaHaven.Services/Helpers/WorkOrderDerivedFields.cs

@@ -1,55 +1,99 @@
-using Data.SeaHavenIndustries;
-using Data.SeaHavenIndustries.Enums;
-
-namespace SeaHaven.Services.Helpers
-{
-    public static class WorkOrderDerivedFields
-    {
-        /// <summary>
-        /// Past due overlay — never a WorkOrderType. Matches SHOC board design.
-        /// </summary>
-        public static bool IsPastDue(WorkOrder workOrder, DateOnly? asOf = null)
-        {
-            var today = asOf ?? DateOnly.FromDateTime(DateTime.UtcNow);
-            if (workOrder.ScheduledDate == null)
-                return false;
-
-            if (LifecycleStatusMapper.IsTerminal(workOrder.LifecycleStatus))
-                return false;
-
-            return DateOnly.FromDateTime(workOrder.ScheduledDate.Value.Date) < today;
-        }
-
-        /// <summary>
-        /// Sets initial lifecycle on create. New WOs start Incomplete unless auto-scheduled.
-        /// </summary>
-        public static void SetInitialLifecycleStatus(WorkOrder workOrder)
-        {
-            workOrder.LifecycleStatus ??= LifecycleStatus.Incomplete;
-            ApplyAutoScheduleIfEligible(workOrder);
-        }
-
-        /// <summary>
-        /// SHOC rule: specific scheduled date + assignee + Incomplete → Scheduled.
-        /// Week-only targets do not auto-schedule.
-        /// </summary>
-        public static bool ApplyAutoScheduleIfEligible(WorkOrder workOrder)
-        {
-            if (workOrder.LifecycleStatus != LifecycleStatus.Incomplete)
-                return false;
-
-            if (workOrder.ScheduleWeekOnly == true)
-                return false;
-
-            if (workOrder.ScheduledDate == null)
-                return false;
-
-            if (string.IsNullOrWhiteSpace(workOrder.AssignTo))
-                return false;
-
-            workOrder.LifecycleStatus = LifecycleStatus.Scheduled;
-            return true;
-        }
-    }
-}
-
+using Data.SeaHavenIndustries;
+using Data.SeaHavenIndustries.Enums;
+
+namespace SeaHaven.Services.Helpers
+{
+    public static class WorkOrderDerivedFields
+    {
+        /// <summary>
+        /// Past due overlay — never a WorkOrderType. Matches SHOC board design.
+        /// </summary>
+        public static bool IsPastDue(WorkOrder workOrder, DateOnly? asOf = null)
+        {
+            var today = asOf ?? DateOnly.FromDateTime(DateTime.UtcNow);
+            if (workOrder.ScheduledDate == null)
+                return false;
+
+            if (LifecycleStatusMapper.IsTerminal(workOrder.LifecycleStatus))
+                return false;
+
+            return DateOnly.FromDateTime(workOrder.ScheduledDate.Value.Date) < today;
+        }
+
+        public static bool IsPastDue(
+            DateTime? scheduledDate,
+            LifecycleStatus? lifecycleStatus,
+            DateTime? utcNow = null)
+        {
+            if (!scheduledDate.HasValue)
+                return false;
+
+            if (LifecycleStatusMapper.IsTerminal(lifecycleStatus))
+                return false;
+
+            var today = (utcNow ?? DateTime.UtcNow).Date;
+            return scheduledDate.Value.Date < today;
+        }
+
+        /// <summary>
+        /// Sets initial lifecycle on create. New WOs start Incomplete unless auto-scheduled.
+        /// </summary>
+        public static void SetInitialLifecycleStatus(WorkOrder workOrder)
+        {
+            workOrder.LifecycleStatus ??= LifecycleStatus.Incomplete;
+            ApplyAutoScheduleIfEligible(workOrder);
+        }
+
+        /// <summary>
+        /// SHOC rule: specific scheduled date + assignee + Incomplete → Scheduled.
+        /// Week-only targets do not auto-schedule.
+        /// </summary>
+        public static bool ApplyAutoScheduleIfEligible(WorkOrder workOrder)
+        {
+            if (workOrder.LifecycleStatus != LifecycleStatus.Incomplete)
+                return false;
+
+            if (workOrder.ScheduleWeekOnly == true)
+                return false;
+
+            if (workOrder.ScheduledDate == null)
+                return false;
+
+            if (string.IsNullOrWhiteSpace(workOrder.AssignTo))
+                return false;
+
+            workOrder.LifecycleStatus = LifecycleStatus.Scheduled;
+            return true;
+        }
+
+        public static string? GetDayGroup(DateTime? scheduledDate)
+        {
+            if (!scheduledDate.HasValue)
+                return null;
+
+            return scheduledDate.Value.DayOfWeek switch
+            {
+                DayOfWeek.Monday => "monday",
+                DayOfWeek.Tuesday => "tuesday",
+                DayOfWeek.Wednesday => "wednesday",
+                DayOfWeek.Thursday => "thursday",
+                DayOfWeek.Friday => "friday",
+                _ => null
+            };
+        }
+
+        public static string? FormatApptTime(DateTime? start, DateTime? end)
+        {
+            if (!start.HasValue)
+                return null;
+
+            if (end.HasValue)
+                return $"{start.Value:HH:mm} – {end.Value:HH:mm}";
+
+            return start.Value.ToString("HH:mm");
+        }
+
+        public static string GetLifecycleStatusLabel(LifecycleStatus? status)
+            => status.HasValue ? LifecycleStatusMapper.ToFeLabel(status.Value) : "";
+    }
+}

SeaHaven.Services/Helpers/WorkOrderOperationalWeek.cs

@@ -0,0 +1,20 @@
+namespace SeaHaven.Services.Helpers
+{
+    public static class WorkOrderOperationalWeek
+    {
+        public static DateOnly GetMondayOfWeek(DateOnly date)
+        {
+            var daysFromMonday = ((int)date.DayOfWeek + 6) % 7;
+            return date.AddDays(-daysFromMonday);
+        }
+
+        public static DateOnly GetPreviousOperationalWeekStart(DateTime utcNow)
+            => GetMondayOfWeek(DateOnly.FromDateTime(utcNow)).AddDays(-7);
+
+        public static DateOnly GetOperationalWeekEnd(DateOnly weekStartMonday)
+            => weekStartMonday.AddDays(4);
+
+        public static string BuildWeekCorrelationId(DateOnly sourceWeekStart)
+            => $"week:{sourceWeekStart:yyyy-MM-dd}";
+    }
+}

SeaHaven.Services/Implementation/WorkOrderBoardService.cs

@@ -0,0 +1,120 @@
+using Data.SeaHavenIndustries.Enums;
+using SeaHaven.DataServices.Interfaces;
+using SeaHaven.Services.DTOs;
+using SeaHaven.Services.Helpers;
+using SeaHaven.Services.Interfaces;
+
+namespace SeaHaven.Services.Implementation
+{
+    public class WorkOrderBoardService : IWorkOrderBoardService
+    {
+        private readonly IWorkOrderBoardDataService _boardDataService;
+
+        public WorkOrderBoardService(IWorkOrderBoardDataService boardDataService)
+        {
+            _boardDataService = boardDataService;
+        }
+
+        public async Task<WorkOrderBoardResponseDto> GetBoardAsync(
+            WorkOrderBoardQueryDto query,
+            string? currentUserId)
+        {
+            var weekStart = query.WeekStart;
+            var weekEnd = query.WeekEnd ?? weekStart.AddDays(4);
+
+            ValidateWeekWindow(weekStart, weekEnd);
+
+            var dataQuery = new WorkOrderBoardQuery(
+                weekStart,
+                weekEnd,
+                query.Dispatchers,
+                query.MyWorkOrders,
+                query.Types,
+                query.Search,
+                currentUserId);
+
+            var result = await _boardDataService.GetBoardRowsAsync(dataQuery);
+            var utcNow = DateTime.UtcNow;
+
+            return new WorkOrderBoardResponseDto
+            {
+                WeekStart = weekStart,
+                WeekEnd = weekEnd,
+                Counts = new WorkOrderBoardCountsDto
+                {
+                    Total = result.ScheduledTotalBeforeSearch,
+                    Returned = result.ScheduledRows.Count
+                },
+                Scheduled = result.ScheduledRows.Select(r => MapRow(r, utcNow)).ToList(),
+                Unscheduled = result.UnscheduledRows.Select(r => MapRow(r, utcNow)).ToList()
+            };
+        }
+
+        public async Task<IReadOnlyList<DispatcherLookupDto>> GetDispatcherLookupsAsync()
+        {
+            var rows = await _boardDataService.GetDispatcherLookupsAsync();
+            return rows.Select(r => new DispatcherLookupDto
+            {
+                Id = r.Id,
+                Name = FormatName(r.FirstName, r.LastName),
+                Initials = r.Initials,
+                Color = r.Color
+            }).ToList();
+        }
+
+        private static void ValidateWeekWindow(DateOnly weekStart, DateOnly weekEnd)
+        {
+            if (weekEnd < weekStart)
+                throw new ArgumentException("weekEnd must be on or after weekStart.");
+
+            var spanDays = weekEnd.DayNumber - weekStart.DayNumber;
+            if (spanDays > 6)
+                throw new ArgumentException("Week window cannot exceed 7 days.");
+        }
+
+        private static WorkOrderBoardRowDto MapRow(WorkOrderBoardRawRow row, DateTime utcNow)
+        {
+            var apptStart = row.ScheduledStart ?? row.DispatchApptDate;
+            var apptEnd = row.ScheduledEnd;
+
+            return new WorkOrderBoardRowDto
+            {
+                Id = row.Id,
+                WoNumber = row.InternalWONumber,
+                RescheduleCount = row.RescheduleCount,
+                CarriedOver = row.CarriedOver,
+                WorkOrderType = row.WorkOrderType,
+                IsPastDue = WorkOrderDerivedFields.IsPastDue(row.ScheduledDate, row.LifecycleStatus, utcNow),
+                SiteCode = row.SiteCode,
+                LocationName = row.LocationName,
+                PocName = row.PocName,
+                PocPhone = row.PocPhone,
+                PocNotes = row.PocNotes,
+                LifecycleStatus = row.LifecycleStatus,
+                LifecycleStatusLabel = WorkOrderDerivedFields.GetLifecycleStatusLabel(row.LifecycleStatus),
+                LegacyStatus = row.LegacyStatus,
+                DispatcherId = row.AssignTo,
+                DispatcherName = FormatName(row.DispatcherFirstName, row.DispatcherLastName),
+                Initials = row.Initials,
+                Color = row.Color,
+                DueDate = row.DueDate,
+                ScheduledDate = row.ScheduledDate,
+                TargetWeek = row.TargetWeek,
+                ScheduleWeekOnly = row.ScheduleWeekOnly,
+                DayGroup = WorkOrderDerivedFields.GetDayGroup(row.ScheduledDate),
+                VendorId = row.VendorId,
+                VendorName = row.VendorName,
+                TechName = row.TechName,
+                TechPhone = row.TechPhone,
+                ApptDate = row.DispatchApptDate ?? row.ScheduledDate,
+                ApptTime = WorkOrderDerivedFields.FormatApptTime(apptStart, apptEnd),
+                Pm = row.Trade ?? row.Problem,
+                DocStatus = row.DocStatus,
+                RowVersion = row.RowVersion
+            };
+        }
+
+        private static string FormatName(string? firstName, string? lastName)
+            => $"{firstName ?? ""} {lastName ?? ""}".Trim();
+    }
+}

SeaHaven.Services/Interfaces/IWorkOrderBoardService.cs

@@ -0,0 +1,10 @@
+using SeaHaven.Services.DTOs;
+
+namespace SeaHaven.Services.Interfaces
+{
+    public interface IWorkOrderBoardService
+    {
+        Task<WorkOrderBoardResponseDto> GetBoardAsync(WorkOrderBoardQueryDto query, string? currentUserId);
+        Task<IReadOnlyList<DispatcherLookupDto>> GetDispatcherLookupsAsync();
+    }
+}

SeaHavenIndustries.Tests/WorkOrderBoardServiceTests.cs

@@ -0,0 +1,210 @@
+using Data.SeaHavenIndustries;
+using Data.SeaHavenIndustries.Enums;
+using Microsoft.EntityFrameworkCore;
+using SeaHaven.DataServices.Implementation;
+using SeaHaven.DataServices.Interfaces;
+using SeaHaven.Services.DTOs;
+using SeaHaven.Services.Implementation;
+
+namespace SeaHavenIndustries.Tests;
+
+public class WorkOrderBoardDataServiceTests
+{
+    private static ApplicationDbContext CreateContext()
+    {
+        var options = new DbContextOptionsBuilder<ApplicationDbContext>()
+            .UseInMemoryDatabase(Guid.NewGuid().ToString())
+            .Options;
+        return new ApplicationDbContext(options);
+    }
+
+    [Fact]
+    public async Task GetBoardRows_ReturnsScheduledInWeekAndUnscheduled()
+    {
+        await using var context = CreateContext();
+        var weekStart = new DateOnly(2026, 6, 22);
+
+        context.Vendors.Add(new Vendor { Id = 1, CompanyName = "Acme HVAC", ContactName = "Tech", Phone = "555-0100" });
+        context.Dispatches.Add(new Dispatch
+        {
+            Id = 10,
+            VendorId = 1,
+            ScheduledDate = new DateTime(2026, 6, 24, 8, 0, 0)
+        });
+
+        context.workOrders.AddRange(
+            new WorkOrder
+            {
+                Id = 1,
+                InternalWONumber = "10000000001",
+                ScheduledDate = new DateTime(2026, 6, 23),
+                LifecycleStatus = LifecycleStatus.Scheduled,
+                PrimaryDispatchId = 10,
+                SiteCode = "BK5"
+            },
+            new WorkOrder
+            {
+                Id = 2,
+                InternalWONumber = "10000000002",
+                ScheduledDate = null,
+                LifecycleStatus = LifecycleStatus.Incomplete,
+                SiteCode = "BK6"
+            },
+            new WorkOrder
+            {
+                Id = 3,
+                InternalWONumber = "10000000003",
+                ScheduledDate = new DateTime(2026, 7, 1),
+                LifecycleStatus = LifecycleStatus.Scheduled
+            });
+
+        await context.SaveChangesAsync();
+
+        var service = new WorkOrderBoardDataService(context);
+        var result = await service.GetBoardRowsAsync(new WorkOrderBoardQuery(
+            weekStart,
+            weekStart.AddDays(4),
+            null,
+            false,
+            null,
+            null,
+            null));
+
+        Assert.Single(result.ScheduledRows);
+        Assert.Equal(1, result.ScheduledRows[0].Id);
+        Assert.Equal("Acme HVAC", result.ScheduledRows[0].VendorName);
+        Assert.Single(result.UnscheduledRows);
+        Assert.Equal(2, result.UnscheduledRows[0].Id);
+        Assert.Equal(1, result.ScheduledTotalBeforeSearch);
+    }
+
+    [Fact]
+    public async Task GetBoardRows_FiltersByDispatcher()
+    {
+        await using var context = CreateContext();
+        var weekStart = new DateOnly(2026, 6, 22);
+
+        context.workOrders.AddRange(
+            new WorkOrder
+            {
+                Id = 1,
+                AssignTo = "user-a",
+                ScheduledDate = new DateTime(2026, 6, 23),
+                LifecycleStatus = LifecycleStatus.Scheduled
+            },
+            new WorkOrder
+            {
+                Id = 2,
+                AssignTo = "user-b",
+                ScheduledDate = new DateTime(2026, 6, 24),
+                LifecycleStatus = LifecycleStatus.Scheduled
+            });
+
+        await context.SaveChangesAsync();
+
+        var service = new WorkOrderBoardDataService(context);
+        var result = await service.GetBoardRowsAsync(new WorkOrderBoardQuery(
+            weekStart,
+            weekStart.AddDays(4),
+            new[] { "user-a" },
+            false,
+            null,
+            null,
+            null));
+
+        Assert.Single(result.ScheduledRows);
+        Assert.Equal("user-a", result.ScheduledRows[0].AssignTo);
+    }
+
+    [Fact]
+    public async Task GetBoardRows_MyWorkOrders_FiltersCurrentUser()
+    {
+        await using var context = CreateContext();
+        var weekStart = new DateOnly(2026, 6, 22);
+
+        context.workOrders.AddRange(
+            new WorkOrder
+            {
+                Id = 1,
+                AssignTo = "me",
+                ScheduledDate = new DateTime(2026, 6, 23),
+                LifecycleStatus = LifecycleStatus.Scheduled
+            },
+            new WorkOrder
+            {
+                Id = 2,
+                AssignTo = "other",
+                ScheduledDate = new DateTime(2026, 6, 23),
+                LifecycleStatus = LifecycleStatus.Scheduled
+            });
+
+        await context.SaveChangesAsync();
+
+        var service = new WorkOrderBoardDataService(context);
+        var result = await service.GetBoardRowsAsync(new WorkOrderBoardQuery(
+            weekStart,
+            weekStart.AddDays(4),
+            null,
+            true,
+            null,
+            null,
+            "me"));
+
+        Assert.Single(result.ScheduledRows);
+        Assert.Equal(1, result.ScheduledRows[0].Id);
+    }
+}
+
+public class WorkOrderBoardServiceTests
+{
+    private static ApplicationDbContext CreateContext()
+    {
+        var options = new DbContextOptionsBuilder<ApplicationDbContext>()
+            .UseInMemoryDatabase(Guid.NewGuid().ToString())
+            .Options;
+        return new ApplicationDbContext(options);
+    }
+
+    [Fact]
+    public async Task GetBoardAsync_ComputesCountsAndPastDue()
+    {
+        await using var context = CreateContext();
+        var weekStart = new DateOnly(2026, 6, 22);
+
+        context.workOrders.Add(new WorkOrder
+        {
+            Id = 1,
+            InternalWONumber = "10000000001",
+            ScheduledDate = new DateTime(2026, 6, 24, 12, 0, 0, DateTimeKind.Utc),
+            LifecycleStatus = LifecycleStatus.Scheduled
+        });
+
+        await context.SaveChangesAsync();
+
+        var dataService = new WorkOrderBoardDataService(context);
+        var boardService = new WorkOrderBoardService(dataService);
+
+        var response = await boardService.GetBoardAsync(new WorkOrderBoardQueryDto
+        {
+            WeekStart = weekStart
+        }, null);
+
+        Assert.Equal(1, response.Counts.Total);
+        Assert.Single(response.Scheduled);
+        Assert.True(response.Scheduled[0].IsPastDue);
+        Assert.Equal("wednesday", response.Scheduled[0].DayGroup);
+    }
+
+    [Fact]
+    public async Task GetBoardAsync_InvalidWeekWindow_Throws()
+    {
+        await using var context = CreateContext();
+        var boardService = new WorkOrderBoardService(new WorkOrderBoardDataService(context));
+
+        await Assert.ThrowsAsync<ArgumentException>(() => boardService.GetBoardAsync(new WorkOrderBoardQueryDto
+        {
+            WeekStart = new DateOnly(2026, 6, 22),
+            WeekEnd = new DateOnly(2026, 6, 15)
+        }, null));
+    }
+}