feat: add native runtime settings

tests/MBN_STOCK_WEBVIEW.Infrastructure.Tests/LegacyIniDatabaseOptionsLoaderTests.cs

@@ -147,6 +147,37 @@ public sealed class LegacyIniDatabaseOptionsLoaderTests
         Assert.Equal("maria.dev.invalid", runtime.Options.MariaDb.Host);
     }
 
+    [Fact]
+    public void Runtime_UserSelectedResCanExplicitlyPrecedeExecutableCredentials()
+    {
+        using var directory = TemporaryDirectory.Create();
+        var executableRes = Path.Combine(directory.Path, "Res");
+        Directory.CreateDirectory(executableRes);
+        File.WriteAllBytes(
+            Path.Combine(executableRes, "MmoneyCoder.ini"),
+            TemporaryLegacyIni.ValidUtf8Bytes());
+        using var selected = TemporaryLegacyIni.Create(Encoding.UTF8.GetBytes(
+            """
+            [Oracle]
+            ConnectionName=selected.oracle.invalid:1521/DEVORA
+            ID=oracle-user
+            Pass=oracle-password
+            [Maria]
+            ConnectionName=selected.maria.invalid:3306/dev_stock
+            ID=maria-user
+            Pass=maria-password
+            """));
+
+        var runtime = DatabaseRuntime.CreateLegacyExecutableDefault(
+            directory.Path,
+            Path.Combine(directory.Path, "missing.json"),
+            selected.Path,
+            preferLegacyOverride: true);
+
+        Assert.Equal("selected.oracle.invalid", runtime.Options.Oracle.Host);
+        Assert.Equal("selected.maria.invalid", runtime.Options.MariaDb.Host);
+    }
+
     [Fact]
     public void Load_OptionalRealLegacyIni_IsConfiguredWithoutPrintingValues()
     {