Add DashboardController with Stats endpoint

- Returns total, open, notDispatched, completed work order counts

Api.SeaHavenIndustries/Controllers/DashboardController.cs

@@ -0,0 +1,39 @@
+using Data.SeaHavenIndustries;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+
+namespace Api.SeaHavenIndustries.Controllers
+{
+    [Authorize]
+    [ApiController]
+    [Route("api/[controller]")]
+    public class DashboardController : Controller
+    {
+        private readonly ApplicationDbContext _db;
+
+        public DashboardController(ApplicationDbContext db)
+        {
+            _db = db;
+        }
+
+        [HttpGet("Stats")]
+        public async Task<IActionResult> GetStats()
+        {
+            var query = _db.workOrders.Where(w => w.istemplate != true);
+
+            var total = await query.CountAsync();
+            var open = await query.CountAsync(w => w.Status == "Open" || w.Status == "In Progress" || w.Status == "On Hold");
+            var notDispatched = await query.CountAsync(w => (w.Status == "Open") && (w.AssignTo == null || w.AssignTo == ""));
+            var completed = await query.CountAsync(w => w.Status == "Done");
+
+            return Ok(new
+            {
+                total,
+                open,
+                notDispatched,
+                completed
+            });
+        }
+    }
+}