Reuse stored managed-NE credentials when opening WebCRT from topology.

Deep-link open was missing has_password/protocol, so SSH always prompted for login.

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

netx_api/ne_schemas.py

@@ -89,6 +89,8 @@ class ManagedNeOut(BaseModel):
     port: int
     protocol: str
     username: str
+    # True when a non-empty password ciphertext is stored (never returns the secret).
+    has_password: bool = False
     connect_status: ConnectStatus
     connect_message: str
     connect_detail: str = ""

netx_api/ne_service_common.py

@@ -201,6 +201,7 @@ def row_to_out(row: ManagedNE) -> ManagedNeOut:
         port=int(row.port or 22),
         protocol=str(row.protocol or "ssh"),
         username=str(row.username or ""),
+        has_password=bool(str(row.password_enc or "").strip()),
         connect_status=status,  # type: ignore[arg-type]
         connect_message=str(row.connect_message or "")[:500],
         connect_detail=str(row.connect_detail or "")[:8000],