Rewrite electricity server to .NET web api

src/Electricity.Api/DatabaseContext.cs

@@ -0,0 +1,45 @@
+using Electricity.Api.Entities;
+using Microsoft.EntityFrameworkCore;
+
+namespace Electricity.Api
+{
+    public partial class DatabaseContext : DbContext
+    {
+        public DatabaseContext()
+        {
+        }
+
+        public DatabaseContext(DbContextOptions<DatabaseContext> options)
+            : base(options)
+        {
+        }
+
+        public virtual DbSet<ElectricityLog> ElectricityLogs { get; set; } = null!;
+
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            if (!optionsBuilder.IsConfigured)
+            {
+                optionsBuilder.UseSqlite("Data Source=test.db");
+            }
+        }
+
+        protected override void OnModelCreating(ModelBuilder modelBuilder)
+        {
+            modelBuilder.Entity<ElectricityLog>(entity =>
+            {
+                entity.HasNoKey();
+
+                entity.ToTable("ElectricityLog");
+
+                entity.HasIndex(e => e.Date, "idx_Date");
+
+                entity.HasIndex(e => e.TimeUtc, "idx_TimeUtc");
+            });
+
+            OnModelCreatingPartial(modelBuilder);
+        }
+
+        partial void OnModelCreatingPartial(ModelBuilder modelBuilder);
+    }
+}