Add MergeUsageAnalyzer to detect legacy merge service usage

- Implemented MergeUsageAnalyzer to flag usage of AdvisoryMergeService and AddMergeModule.
- Created AnalyzerReleases.Shipped.md and AnalyzerReleases.Unshipped.md for release documentation.
- Added tests for MergeUsageAnalyzer to ensure correct diagnostics for various scenarios.
- Updated project files for analyzers and tests to include necessary dependencies and configurations.
- Introduced a sample report structure for scanner output.

src/Scanner/StellaOps.Scanner.WebService/Options/ScannerWebServiceOptions.cs

@@ -61,6 +61,11 @@ public sealed class ScannerWebServiceOptions
     /// </summary>
     public ApiOptions Api { get; set; } = new();
 
+    /// <summary>
+    /// Console (UI) routing settings used for orchestrator link generation.
+    /// </summary>
+    public ConsoleOptions Console { get; set; } = new();
+
     /// <summary>
     /// Platform event emission settings.
     /// </summary>
@@ -266,6 +271,17 @@ public sealed class ScannerWebServiceOptions
         public string RuntimeSegment { get; set; } = "runtime";
     }
 
+    public sealed class ConsoleOptions
+    {
+        public string BasePath { get; set; } = "/ui";
+
+        public string ReportsSegment { get; set; } = "reports";
+
+        public string PolicySegment { get; set; } = "policy";
+
+        public string AttestationsSegment { get; set; } = "attestations";
+    }
+
     public sealed class EventsOptions
     {
         public bool Enabled { get; set; }