chore: bump beta version to 2026.1.27-beta.1

src/commands/doctor-config-flow.ts

@@ -128,7 +128,7 @@ function moveLegacyConfigFile(legacyPath: string, canonicalPath: string) {
   fs.mkdirSync(path.dirname(canonicalPath), { recursive: true, mode: 0o700 });
   try {
     fs.renameSync(legacyPath, canonicalPath);
-  } catch (err) {
+  } catch {
     fs.copyFileSync(legacyPath, canonicalPath);
     fs.chmodSync(canonicalPath, 0o600);
     try {

src/infra/unhandled-rejections.fatal-detection.test.ts

@@ -10,7 +10,7 @@ describe("installUnhandledRejectionHandler - fatal detection", () => {
   let originalExit: typeof process.exit;
 
   beforeAll(() => {
-    originalExit = process.exit;
+    originalExit = process.exit.bind(process);
     installUnhandledRejectionHandler();
   });