test(scanner/windows): add explicit test cases for build 28000

Add dedicated Test_detectOSName case for Windows 11 26H1 (build 28000)
and two DetectKBsFromKernelVersion cases (10.0.28000.1 and 10.0.28000.1836)
to exercise the newly enabled 26H1 rollup data directly.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: MaineK00n

scanner/windows_test.go

@@ -457,6 +457,20 @@ func Test_detectOSName(t *testing.T) {
 			},
 			want: "Windows 11 Version 25H2 for x64-based Systems",
 		},
+		{
+			name: "Windows 11 Version 26H1 for x64-based Systems",
+			args: osInfo{
+				productName:      "Microsoft Windows 11 Pro",
+				version:          "10.0",
+				build:            "28000",
+				revision:         "1575",
+				edition:          "Professional",
+				servicePack:      "",
+				arch:             "x64-based",
+				installationType: "Client",
+			},
+			want: "Windows 11 Version 26H1 for x64-based Systems",
+		},
 		{
 			name: "Windows 11 latest release",
 			args: osInfo{
@@ -1019,6 +1033,28 @@ func Test_windows_detectKBsFromKernelVersion(t *testing.T) {
 				Unapplied: nil,
 			},
 		},
+		{
+			name: "10.0.28000.1",
+			base: base{
+				Distro:     config.Distro{Release: "Windows 11 Version 26H1 for x64-based Systems"},
+				osPackages: osPackages{Kernel: models.Kernel{Version: "10.0.28000.1"}},
+			},
+			want: models.WindowsKB{
+				Applied:   nil,
+				Unapplied: []string{"5077179", "5077239", "5079466", "5079489", "5083768"},
+			},
+		},
+		{
+			name: "10.0.28000.1836",
+			base: base{
+				Distro:     config.Distro{Release: "Windows 11 Version 26H1 for x64-based Systems"},
+				osPackages: osPackages{Kernel: models.Kernel{Version: "10.0.28000.1836"}},
+			},
+			want: models.WindowsKB{
+				Applied:   []string{"5077179", "5077239", "5079466", "5079489", "5083768"},
+				Unapplied: nil,
+			},
+		},
 		{
 			name: "err",
 			base: base{