Improve WebCRT connect UX and terminal input handling.

Open shells asynchronously with clearer prompt settling, fix Telnet CRLF expansion, and add right-click paste with safer focus behavior.

Co-authored-by: Cursor <cursoragent@cursor.com>

netx_api/webcrt_channel.py

@@ -89,10 +89,8 @@ def map_network_cli_enter(data: str, conn: ConnectHandler | None) -> str:
     if not text:
         return text
     ret = channel_return(conn)
-    if ret == "\r":
-        return text
-    # Prefer replacing CRLF first so Telnet RETURN \\r\\n does not double-expand.
-    return text.replace("\r\n", ret).replace("\r", ret)
+    # Replace once: chained replacements expand the CR in Telnet CRLF again.
+    return re.sub(r"\r\n|\r|\n", lambda _match: ret, text)
 
 
 def _drain_channel(conn: ConnectHandler, *, rounds: int = 6, wait: float = 0.06) -> str:

netx_api/webcrt_router.py

@@ -208,9 +208,8 @@ def api_quick_connect(
         user_override = str(body.username or "").strip() or None
         if str(body.password or "").strip():
             pwd_override = str(body.password)
-    # SSH with password: wait for auth so wrong credentials can re-prompt (SecureCRT-like).
-    wait_for_auth = proto == "ssh" and bool(pwd_override)
-    async_connect = bool(body.async_connect) and not wait_for_auth
+    # Open the terminal immediately; WS reports auth progress and retryable failures.
+    async_connect = bool(body.async_connect)
     try:
         session = create_session(
             db,

netx_api/webcrt_session_registry.py

@@ -453,8 +453,12 @@ def _finish_connect(
             text = _decode_bytes(chunk, sess.encoding)
         except Exception:
             text = ""
-        if _is_prompt_only_echo(text, prompt_hint):
+        # A slow VM may emit its FIRST prompt after the reader starts.
+        # Only drop duplicates when a prompt was already delivered during login.
+        if _looks_like_cli_prompt(final_view) and _is_prompt_only_echo(text, prompt_hint):
             continue
+        if _looks_like_cli_prompt(text):
+            sess.needs_live_prompt = False
         # Non-prompt data: put back and stop settling.
         sess.out_queue.put(chunk)
         break