texts fixes, search bar fixes, global menu fixes.

src/SbomService/StellaOps.SbomService/Program.cs

@@ -1540,6 +1540,21 @@ app.MapPost("/internal/orchestrator/watermarks", async Task<IResult> (
     .RequireAuthorization(SbomPolicies.Internal)
     .RequireTenant();
 
+// Compare baseline recommendation stub (called by UI compare feature)
+app.MapGet("/api/compare/baselines/{scanDigest}", (string scanDigest) =>
+    Results.Ok(new
+    {
+        selectedDigest = (string?)null,
+        selectionReason = "No baseline recommendations available for this scan",
+        alternatives = Array.Empty<object>(),
+        autoSelectEnabled = true,
+        scanDigest
+    }))
+    .WithName("GetCompareBaselineRecommendation")
+    .WithDescription("Returns baseline scan recommendations for delta comparison. Returns empty recommendations when no previous scans are available.")
+    .WithTags("Compare")
+    .RequireAuthorization(SbomPolicies.Read);
+
 app.TryRefreshStellaRouterEndpoints(routerEnabled);
 app.Run();