add Voltage and Power fields

src/GreenHome.Infrastructure/Migrations/20260106150615_POWER_VOLTAGE_FIELDS.cs

@@ -0,0 +1,38 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace GreenHome.Infrastructure.Migrations
+{
+    /// <inheritdoc />
+    public partial class POWER_VOLTAGE_FIELDS : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<byte>(
+                name: "Power",
+                table: "Telemetry",
+                type: "tinyint",
+                nullable: true);
+
+            migrationBuilder.AddColumn<int>(
+                name: "Voltage",
+                table: "Telemetry",
+                type: "int",
+                nullable: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "Power",
+                table: "Telemetry");
+
+            migrationBuilder.DropColumn(
+                name: "Voltage",
+                table: "Telemetry");
+        }
+    }
+}

src/GreenHome.Infrastructure/Migrations/20260106151206_FIX_VOLTAGE_TYPE.cs

@@ -0,0 +1,36 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace GreenHome.Infrastructure.Migrations
+{
+    /// <inheritdoc />
+    public partial class FIX_VOLTAGE_TYPE : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<decimal>(
+                name: "Voltage",
+                table: "Telemetry",
+                type: "decimal(18,2)",
+                nullable: true,
+                oldClrType: typeof(int),
+                oldType: "int",
+                oldNullable: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<int>(
+                name: "Voltage",
+                table: "Telemetry",
+                type: "int",
+                nullable: true,
+                oldClrType: typeof(decimal),
+                oldType: "decimal(18,2)",
+                oldNullable: true);
+        }
+    }
+}

src/GreenHome.Infrastructure/Migrations/GreenHomeDbContextModelSnapshot.cs

@@ -740,6 +740,9 @@ namespace GreenHome.Infrastructure.Migrations
                     b.Property<int>("PersianYear")
                         .HasColumnType("int");
 
+                    b.Property<byte?>("Power")
+                        .HasColumnType("tinyint");
+
                     b.Property<DateTime>("ServerTimestampUtc")
                         .HasColumnType("datetime2");
 
@@ -752,6 +755,9 @@ namespace GreenHome.Infrastructure.Migrations
                     b.Property<DateTime>("TimestampUtc")
                         .HasColumnType("datetime2");
 
+                    b.Property<decimal?>("Voltage")
+                        .HasColumnType("decimal(18,2)");
+
                     b.HasKey("Id");
 
                     b.HasIndex("DeviceId", "ServerTimestampUtc");

src/GreenHome.Infrastructure/TelemetryService.cs

@@ -40,7 +40,7 @@ public sealed class TelemetryService : ITelemetryService
         // ذخیره زمان سرور در لحظه ثبت
         entity.ServerTimestampUtc = DateTime.Now;
         
-        var dt = dto.TimestampUtc.ToLocalTime();
+        var dt = dto.TimestampUtc!.Value.ToLocalTime();
         var py = PersianCalendar.GetYear(dt);
         var pm = PersianCalendar.GetMonth(dt);
         var pd = PersianCalendar.GetDayOfMonth(dt);