update

README.md

@@ -173,7 +173,7 @@ from nats_bridge import smartsend
 
 # Send a text message
 data = [("message", "Hello World", "text")]
-env = smartsend("/chat/room1", data, nats_url="nats://localhost:4222")
+env, msg_json_str = smartsend("/chat/room1", data, nats_url="nats://localhost:4222")
 print("Message sent!")
 ```
 
@@ -183,7 +183,7 @@ print("Message sent!")
 const { smartsend } = require('./src/NATSBridge');
 
 // Send a text message
-await smartsend("/chat/room1", [
+const { env, msg_json_str } = await smartsend("/chat/room1", [
     { dataname: "message", data: "Hello World", type: "text" }
 ], { natsUrl: "nats://localhost:4222" });
 
@@ -197,7 +197,7 @@ using NATSBridge
 
 # Send a text message
 data = [("message", "Hello World", "text")]
-env = NATSBridge.smartsend("/chat/room1", data, nats_url="nats://localhost:4222")
+env, msg_json_str = NATSBridge.smartsend("/chat/room1", data, nats_url="nats://localhost:4222")
 println("Message sent!")
 ```
 
@@ -323,7 +323,8 @@ env = smartsend(
     receiver_name="",                  # Receiver name (empty = broadcast)
     receiver_id="",                    # Receiver UUID (empty = broadcast)
     reply_to="",                       # Reply topic
-    reply_to_msg_id=""                 # Reply message ID
+    reply_to_msg_id="",                # Reply message ID
+    is_publish=True                    # Whether to automatically publish to NATS
 )
 ```
 
@@ -346,7 +347,8 @@ const env = await smartsend(
         receiverName: "",
         receiverId: "",
         replyTo: "",
-        replyToMsgId: ""
+        replyToMsgId: "",
+        isPublish: true                  // Whether to automatically publish to NATS
     }
 );
 ```
@@ -369,7 +371,8 @@ env, msg_json_str = NATSBridge.smartsend(
     receiver_name::String = "",
     receiver_id::String = "",
     reply_to::String = "",
-    reply_to_msg_id::String = ""
+    reply_to_msg_id::String = "",
+    is_publish::Bool = true            # Whether to automatically publish to NATS
 )
 # Returns: (msgEnvelope_v1, JSON string)
 # - env: msgEnvelope_v1 object with all envelope metadata and payloads