feat: Initialize Zastava Webhook service with TLS and Authority authentication

- Added Program.cs to set up the web application with Serilog for logging, health check endpoints, and a placeholder admission endpoint.
- Configured Kestrel server to use TLS 1.3 and handle client certificates appropriately.
- Created StellaOps.Zastava.Webhook.csproj with necessary dependencies including Serilog and Polly.
- Documented tasks in TASKS.md for the Zastava Webhook project, outlining current work and exit criteria for each task.

src/StellaOps.Scanner.Analyzers.OS/Model/OSPackageAnalyzerResult.cs

@@ -0,0 +1,40 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+
+namespace StellaOps.Scanner.Analyzers.OS;
+
+public sealed class OSPackageAnalyzerResult
+{
+    private static readonly IReadOnlyList<OSPackageRecord> EmptyPackages =
+        new ReadOnlyCollection<OSPackageRecord>(Array.Empty<OSPackageRecord>());
+
+    private static readonly IReadOnlyList<AnalyzerWarning> EmptyWarnings =
+        new ReadOnlyCollection<AnalyzerWarning>(Array.Empty<AnalyzerWarning>());
+
+    public OSPackageAnalyzerResult(
+        string analyzerId,
+        IEnumerable<OSPackageRecord>? packages,
+        OSAnalyzerTelemetry telemetry,
+        IEnumerable<AnalyzerWarning>? warnings = null)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(analyzerId);
+        AnalyzerId = analyzerId.Trim();
+        Packages = packages is null
+            ? EmptyPackages
+            : new ReadOnlyCollection<OSPackageRecord>(packages.ToArray());
+        Telemetry = telemetry;
+        Warnings = warnings is null
+            ? EmptyWarnings
+            : new ReadOnlyCollection<AnalyzerWarning>(warnings.ToArray());
+    }
+
+    public string AnalyzerId { get; }
+
+    public IReadOnlyList<OSPackageRecord> Packages { get; }
+
+    public OSAnalyzerTelemetry Telemetry { get; }
+
+    public IReadOnlyList<AnalyzerWarning> Warnings { get; }
+}