Mark Swift incompatible OS as configuration error

src/cli-errors.test.ts

@@ -299,6 +299,20 @@ test("wrapCliConfigurationError - swift build failed", (t) => {
   t.true(wrappedError instanceof ConfigurationError);
 });
 
+test("wrapCliConfigurationError - swift incompatible os", (t) => {
+  const commandError = new CommandInvocationError(
+    "codeql",
+    ["swift/tools/autobuild.sh"],
+    1,
+    "2026-04-01 18:35:00 EST ERRO [extractor/main] [incompatible-os] Currently, Swift analysis is only supported on macOS. (IncompatibleOs.cpp:26)",
+  );
+  const cliError = new CliError(commandError);
+
+  const wrappedError = wrapCliConfigurationError(cliError);
+
+  t.true(wrappedError instanceof ConfigurationError);
+});
+
 test("wrapCliConfigurationError - pack cannot be found", (t) => {
   const commandError = new CommandInvocationError(
     "codeql",

src/cli-errors.ts

@@ -144,6 +144,7 @@ export enum CliConfigErrorCategory {
   OutOfMemoryOrDisk = "OutOfMemoryOrDisk",
   PackCannotBeFound = "PackCannotBeFound",
   PackMissingAuth = "PackMissingAuth",
+  SwiftIncompatibleOs = "SwiftIncompatibleOs",
   SwiftBuildFailed = "SwiftBuildFailed",
   UnsupportedBuildMode = "UnsupportedBuildMode",
 }
@@ -281,6 +282,12 @@ const cliErrorsConfig: Record<CliConfigErrorCategory, CliErrorConfiguration> = {
       ),
     ],
   },
+  [CliConfigErrorCategory.SwiftIncompatibleOs]: {
+    cliErrorMessageCandidates: [
+      new RegExp("\\[incompatible-os\\]"),
+      new RegExp("Swift analysis is only supported on macOS"),
+    ],
+  },
   [CliConfigErrorCategory.UnsupportedBuildMode]: {
     cliErrorMessageCandidates: [
       new RegExp(