stabilizaiton work - projects rework for maintenanceability and ui livening

src/__Libraries/StellaOps.AuditPack/Services/AuditBundleReader.Manifest.cs

@@ -0,0 +1,27 @@
+using System.Text.Json;
+using StellaOps.AuditPack.Models;
+
+namespace StellaOps.AuditPack.Services;
+
+public sealed partial class AuditBundleReader
+{
+    private static async Task<ManifestLoadResult> LoadManifestAsync(
+        string bundleDir,
+        CancellationToken ct)
+    {
+        var manifestPath = Path.Combine(bundleDir, "manifest.json");
+        if (!File.Exists(manifestPath))
+        {
+            return new ManifestLoadResult(false, "Manifest not found in bundle", null, null);
+        }
+
+        var manifestBytes = await File.ReadAllBytesAsync(manifestPath, ct).ConfigureAwait(false);
+        var manifest = JsonSerializer.Deserialize<AuditBundleManifest>(manifestBytes, _jsonOptions);
+        if (manifest is null)
+        {
+            return new ManifestLoadResult(false, "Failed to parse manifest", null, manifestBytes);
+        }
+
+        return new ManifestLoadResult(true, null, manifest, manifestBytes);
+    }
+}