Fix: pass launch params and add auth support via env vars

- Pass server_name, server_port, share to launch()
- Add GRADIO_AUTH_USER/GRADIO_AUTH_PASS env var support for password protection

gui/web_ui.py

@@ -205,7 +205,19 @@ class WebUI:
 
             demo.load(None)
 
-        demo.queue(default_concurrency_limit=concurrency_limit).launch()
+        # Get auth from environment variable
+        auth = None
+        auth_user = os.environ.get('GRADIO_AUTH_USER')
+        auth_pass = os.environ.get('GRADIO_AUTH_PASS')
+        if auth_user and auth_pass:
+            auth = (auth_user, auth_pass)
+
+        demo.queue(default_concurrency_limit=concurrency_limit).launch(
+            server_name=server_name,
+            server_port=server_port,
+            share=share,
+            auth=auth,
+        )
 
     def change_agent(self, agent_selector):
         yield agent_selector, self._create_agent_info_block(agent_selector), self._create_agent_plugins_block(