fix: handle UnicodeEncodeError when printing banner emoji on Windows

The banner print was failing with a UnicodeEncodeError on Windows terminals
using cp1252 encoding, as the rocket emoji (🚀) could not be encoded.
Replaced/adjusted the print to ensure compatibility across environments.

run.py

@@ -105,6 +105,7 @@ def start_server(host: str = "127.0.0.1", port: int = 8000, reload: bool = False
 
 def main():
     """Main entry point with command line arguments."""
+    sys.stdout.reconfigure(encoding='utf-8')
     parser = argparse.ArgumentParser(
         description="N8N Workflows Search Engine",
         formatter_class=argparse.RawDescriptionHelpFormatter,