feat(infrastructure): add EF Core context and repository implementations

src/infrastructure/DigitalData.TaskFlow.Infrastructure/Persistence/TaskFlowDbContext.cs

@@ -0,0 +1,26 @@
+using DigitalData.TaskFlow.Infrastructure.Persistence.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace DigitalData.TaskFlow.Infrastructure.Persistence;
+
+/// <summary>
+/// EF Core DbContext for TaskFlow infrastructure data access.
+/// </summary>
+public sealed class TaskFlowDbContext(DbContextOptions<TaskFlowDbContext> options) : DbContext(options)
+{
+    /// <summary>
+    /// Gets the keyless result model used for workflow listing procedure reads.
+    /// </summary>
+    public DbSet<WorkflowListingReadModel> WorkflowListingReadModels => Set<WorkflowListingReadModel>();
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        base.OnModelCreating(modelBuilder);
+
+        modelBuilder.Entity<WorkflowListingReadModel>(entity =>
+        {
+            entity.HasNoKey();
+            entity.ToView(null);
+        });
+    }
+}