fix: factory falls back to design-time dummy; remove CI dummy-file step and creds-env cp lines

DeepDrftData/Data/DeepDrftContextFactory.cs

@@ -1,5 +1,6 @@
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Design;
+using NetBlocks.Utilities.Environment;
 
 namespace DeepDrftData.Data;
 
@@ -7,23 +8,21 @@ public class DeepDrftContextFactory : IDesignTimeDbContextFactory<DeepDrftContex
 {
     public DeepDrftContext CreateDbContext(string[] args)
     {
-        // Load the real connection string from environment/connections.json — the same
-        // file DeepDrftPublic's Program.cs loads via CredentialTools. When EF tools run with
-        // --startup-project DeepDrftPublic, the working directory resolves there, so this
-        // relative path works without any env var configuration.
-        const string relPath = "environment/connections.json";
-        if (!File.Exists(relPath))
-            throw new FileNotFoundException(
-                $"'{relPath}' not found. Run EF commands with --startup-project DeepDrftPublic " +
-                $"from the solution root (current dir: {Directory.GetCurrentDirectory()}).", relPath);
+        var path = CredentialTools.ResolvePath("connections", "environment/connections.json");
 
-        using var doc = System.Text.Json.JsonDocument.Parse(File.ReadAllText(relPath));
-        var connectionString = doc.RootElement
-            .GetProperty("ConnectionStrings")
-            .GetProperty("DefaultConnection")
-            .GetString()
-            ?? throw new InvalidOperationException(
-                "ConnectionStrings:DefaultConnection not found in environment/connections.json");
+        string? connectionString = null;
+        if (File.Exists(path))
+        {
+            using var doc = System.Text.Json.JsonDocument.Parse(File.ReadAllText(path));
+            connectionString = doc.RootElement
+                .GetProperty("ConnectionStrings")
+                .GetProperty("DefaultConnection")
+                .GetString();
+        }
+
+        // Fall back to a design-time dummy — the bundle only needs the provider/schema,
+        // not a live connection. This removes the requirement to write a dummy file in CI.
+        connectionString ??= "Host=localhost;Database=deepdrft-design-time;Username=dummy";
 
         var optionsBuilder = new DbContextOptionsBuilder<DeepDrftContext>();
         optionsBuilder.UseNpgsql(connectionString);

DeepDrftData/DeepDrftData.csproj

@@ -18,6 +18,7 @@
     </PackageReference>
     <!-- Npgsql 10.0.1 requires Microsoft.EntityFrameworkCore >= 10.0.4; keep in sync -->
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="10.0.1" />
+    <PackageReference Include="Cerebellum.NetBlocks" Version="10.3.30" />
     <PackageReference Include="Cerebellum.BlazorBlocks.Data" Version="10.3.30" />
     <PackageReference Include="Cerebellum.BlazorBlocks.Data.Postgres" Version="10.3.30" />
   </ItemGroup>