Fix syntax error in peekaboo-cli.ts

- Removed duplicate catch block that was causing compilation errors
- Fixed missing closing brace in timeout handler
- Verified TypeScript tests now run correctly on Linux with Swift tests skipped

package-lock.json

@@ -10,7 +10,8 @@
       "hasInstallScript": true,
       "license": "MIT",
       "os": [
-        "darwin"
+        "darwin",
+        "linux"
       ],
       "dependencies": {
         "@modelcontextprotocol/sdk": "^1.12.0",

src/utils/peekaboo-cli.ts

@@ -160,8 +160,6 @@ export async function executeSwiftCli(
             process.kill('SIGKILL');
           } catch (err) {
             // Process is already dead, which is what we want
-          } catch (err) {
-            // Process is already dead, which is what we want
           }
         }, 1000);