fix: Remove orphaned closing brace in smart-install.js causing syntax error

Fixes a SyntaxError where an extra closing brace on line 392 was causing
"Missing catch or finally after try" error. The PM2 worker startup
try/catch block was properly formed but had an orphaned closing brace
that didn't match any opening brace.

This was breaking the SessionStart hook and preventing the plugin from
loading correctly.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

scripts/smart-install.js

@@ -389,7 +389,6 @@ async function main() {
         // The ensureWorkerRunning() function will handle auto-start when needed
         log('ℹ️  Worker will start automatically when needed', colors.dim);
       }
-    }
 
     // Success - dependencies installed (if needed)
     process.exit(0);