feat(notify): add FinlyticNotify push notification microservice and test suite

FinlyticNotify/Database/NotifyDbContext.cs

@@ -0,0 +1,34 @@
+using FinlyticCore.Database;
+using FinlyticCore.Entities.Settings;
+using Microsoft.EntityFrameworkCore;
+
+namespace FinlyticNotify.Database;
+
+/// <summary>
+/// Entity Framework DbContext used by FinlyticNotify exclusively for its own database (finlytic_notify)
+/// and dynamic settings.
+/// </summary>
+public class NotifyDbContext : DbContext, ISettingsDbContext
+{
+    /// <summary>
+    /// Initializes a new instance of the <see cref="NotifyDbContext"/> class.
+    /// </summary>
+    public NotifyDbContext(DbContextOptions<NotifyDbContext> options) : base(options)
+    {
+    }
+
+    /// <summary>Dynamic settings table for FinlyticNotify.</summary>
+    public DbSet<SettingEntity> DynamicSettings => Set<SettingEntity>();
+
+    /// <inheritdoc />
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        base.OnModelCreating(modelBuilder);
+        
+        modelBuilder.Entity<SettingEntity>(entity =>
+        {
+            entity.HasKey(e => e.Id);
+            entity.HasIndex(e => e.Key).IsUnique();
+        });
+    }
+}