feat: add Migrator console project

- Dedicated HrynCo.NotificationService.Migrator console app
- Reads App:ConnectionString from config/env
- Calls db.Database.MigrateAsync() with clear log output
- Own Dockerfile (runtime:10.0 base, no SDK overhead)
- Replaces SDK volume-mount approach in docker-compose
- Added to solution with /docker/Migrator/ folder

Ref: IT-628

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

HrynCo.NotificationService.Migrator/Dockerfile

@@ -0,0 +1,17 @@
+FROM mcr.microsoft.com/dotnet/sdk:10.0 AS build
+WORKDIR /src
+
+COPY ["HrynCo.NotificationService.Migrator/HrynCo.NotificationService.Migrator.csproj", "HrynCo.NotificationService.Migrator/"]
+COPY ["HrynCo.NotificationService.DAL.EF/HrynCo.NotificationService.DAL.EF.csproj", "HrynCo.NotificationService.DAL.EF/"]
+COPY ["HrynCo.NotificationService.DAL.Abstract/HrynCo.NotificationService.DAL.Abstract.csproj", "HrynCo.NotificationService.DAL.Abstract/"]
+COPY ["Directory.Packages.props", "./"]
+COPY ["Directory.Build.props", "./"]
+RUN dotnet restore "HrynCo.NotificationService.Migrator/HrynCo.NotificationService.Migrator.csproj"
+
+COPY . .
+RUN dotnet publish "HrynCo.NotificationService.Migrator/HrynCo.NotificationService.Migrator.csproj" -c Release -o /app/publish --no-restore
+
+FROM mcr.microsoft.com/dotnet/runtime:10.0
+WORKDIR /app
+COPY --from=build /app/publish .
+ENTRYPOINT ["dotnet", "HrynCo.NotificationService.Migrator.dll"]

HrynCo.NotificationService.Migrator/HrynCo.NotificationService.Migrator.csproj

@@ -0,0 +1,25 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.Extensions.Hosting" />
+    <PackageReference Include="Serilog.Extensions.Hosting" />
+    <PackageReference Include="Serilog.Settings.Configuration" />
+    <PackageReference Include="Serilog.Sinks.Console" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\HrynCo.NotificationService.DAL.EF\HrynCo.NotificationService.DAL.EF.csproj" />
+  </ItemGroup>
+
+</Project>

HrynCo.NotificationService.Migrator/Program.cs

@@ -0,0 +1,46 @@
+using HrynCo.NotificationService.DAL.EF;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using Serilog;
+
+Log.Logger = new LoggerConfiguration()
+    .WriteTo.Console()
+    .CreateBootstrapLogger();
+
+try
+{
+    Log.Information("🚀 Notification Service Migrator starting...");
+
+    var host = Host.CreateDefaultBuilder(args)
+        .UseSerilog((ctx, cfg) => cfg
+            .ReadFrom.Configuration(ctx.Configuration)
+            .WriteTo.Console())
+        .ConfigureServices((ctx, services) =>
+        {
+            var connectionString = ctx.Configuration["App:ConnectionString"]
+                ?? throw new InvalidOperationException("App:ConnectionString is not configured.");
+
+            services.AddDbContext<NotificationDbContext>(options =>
+                options.UseNpgsql(connectionString));
+        })
+        .Build();
+
+    using var scope = host.Services.CreateScope();
+    var db = scope.ServiceProvider.GetRequiredService<NotificationDbContext>();
+
+    Log.Information("Applying migrations...");
+    await db.Database.MigrateAsync();
+    Log.Information("Migrations applied successfully.");
+}
+catch (Exception ex)
+{
+    Log.Fatal(ex, "Migration failed.");
+    return 1;
+}
+finally
+{
+    await Log.CloseAndFlushAsync();
+}
+
+return 0;

HrynCo.NotificationService.Migrator/appsettings.json

@@ -0,0 +1,18 @@
+{
+  "App": {
+    "ConnectionString": ""
+  },
+  "Serilog": {
+    "MinimumLevel": {
+      "Default": "Information",
+      "Override": {
+        "Microsoft": "Warning",
+        "Microsoft.EntityFrameworkCore": "Information"
+      }
+    },
+    "WriteTo": [
+      { "Name": "Console" }
+    ],
+    "Enrich": [ "FromLogContext" ]
+  }
+}

HrynCo.NotificationService.slnx

@@ -8,7 +8,11 @@
     <Folder Name="/docker/Worker/">
       <File Path="HrynCo.NotificationService.Worker/Dockerfile" />
     </Folder>
+    <Folder Name="/docker/Migrator/">
+      <File Path="HrynCo.NotificationService.Migrator/Dockerfile" />
     </Folder>
+  </Folder>
+  <Project Path="HrynCo.NotificationService.Migrator/HrynCo.NotificationService.Migrator.csproj" />
   <Project Path="HrynCo.NotificationService.Web.IntegrationTests/HrynCo.NotificationService.Web.IntegrationTests.csproj" />
   <Project Path="HrynCo.NotificationService.Web/HrynCo.NotificationService.Web.csproj" />
   <Project Path="HrynCo.NotificationService.DAL.Abstract/HrynCo.NotificationService.DAL.Abstract.csproj" />

docker/environments/docker-compose.yml

@@ -1,18 +1,13 @@
 services:
   migrator:
-    image: mcr.microsoft.com/dotnet/sdk:10.0
+    build:
-    working_dir: /src
+      context: ../..
-    volumes:
+      dockerfile: HrynCo.NotificationService.Migrator/Dockerfile
-      - ../..:/src
     environment:
       - App__ConnectionString=${CONNECTION_STRING}
     depends_on:
       db:
         condition: service_started
-    command:
-      - /bin/sh
-      - -c
-      - dotnet tool install --tool-path /tmp/dotnet-tools dotnet-ef --version "9.*" && until /tmp/dotnet-tools/dotnet-ef database update --project /src/HrynCo.NotificationService.DAL.EF --startup-project /src/HrynCo.NotificationService.Web; do echo "Migration failed, retrying in 3s..."; sleep 3; done
     restart: "no"
 
   api: