Fix review findings: scrub committed password, restore migration namespace, document Npgsql version constraint

DeepDrftWeb.Services/Data/DeepDrftContextFactory.cs

@@ -7,9 +7,16 @@ public class DeepDrftContextFactory : IDesignTimeDbContextFactory<DeepDrftContex
 {
     public DeepDrftContext CreateDbContext(string[] args)
     {
+        // For 'dotnet ef' commands, set ConnectionStrings__DefaultConnection in your environment.
+        // Example: export ConnectionStrings__DefaultConnection="Host=localhost;Database=deepdrft_dev;Username=postgres;Password=yourpassword"
+        var connectionString = Environment.GetEnvironmentVariable("ConnectionStrings__DefaultConnection")
+            ?? throw new InvalidOperationException(
+                "Set ConnectionStrings__DefaultConnection environment variable to run dotnet ef commands. " +
+                "Example: Host=localhost;Database=deepdrft_dev;Username=postgres;Password=yourpassword");
+
         var optionsBuilder = new DbContextOptionsBuilder<DeepDrftContext>();
-        optionsBuilder.UseNpgsql("Host=localhost;Database=deepdrft_dev;Username=postgres;Password=postgres");
-        
+        optionsBuilder.UseNpgsql(connectionString);
+
         return new DeepDrftContext(optionsBuilder.Options);
     }
 }

DeepDrftWeb.Services/DeepDrftWeb.Services.csproj

@@ -16,6 +16,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
+    <!-- Npgsql 10.0.1 requires Microsoft.EntityFrameworkCore >= 10.0.4; keep in sync -->
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="10.0.1" />
   </ItemGroup>
 

DeepDrftWeb.Services/Migrations/20260518025102_Initial.Designer.cs

@@ -9,7 +9,7 @@ using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
 
 #nullable disable
 
-namespace DeepDrftWeb.Services.Migrations
+namespace DeepDrftWeb.Migrations
 {
     [DbContext(typeof(DeepDrftContext))]
     [Migration("20260518025102_Initial")]

DeepDrftWeb.Services/Migrations/20260518025102_Initial.cs

@@ -4,7 +4,7 @@ using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
 
 #nullable disable
 
-namespace DeepDrftWeb.Services.Migrations
+namespace DeepDrftWeb.Migrations
 {
     /// <inheritdoc />
     public partial class Initial : Migration

DeepDrftWeb.Services/Migrations/DeepDrftContextModelSnapshot.cs

@@ -8,7 +8,7 @@ using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
 
 #nullable disable
 
-namespace DeepDrftWeb.Services.Migrations
+namespace DeepDrftWeb.Migrations
 {
     [DbContext(typeof(DeepDrftContext))]
     partial class DeepDrftContextModelSnapshot : ModelSnapshot