feat(client): make rdpsnd-native an optional default-enabled dependency

Extract rdpsnd support from PR #1289 into a dedicated PR as suggested
in review. The native-rdpsnd feature is default-enabled so rdpsnd is
always included unless explicitly opted out (e.g. by headless/agent
consumers using --no-default-features).

Ref: #1289 (review)

Author: Copilot

crates/ironrdp-client/Cargo.toml

@@ -24,9 +24,10 @@ name = "ironrdp-client"
 test = false
 
 [features]
-default = ["rustls"]
+default = ["rustls", "native-rdpsnd"]
 rustls = ["ironrdp-tls/rustls", "tokio-tungstenite/rustls-tls-native-roots", "ironrdp-mstsgu/rustls"]
 native-tls = ["ironrdp-tls/native-tls", "tokio-tungstenite/native-tls", "ironrdp-mstsgu/native-tls"]
+native-rdpsnd = ["dep:ironrdp-rdpsnd-native"]
 qoi = ["ironrdp/qoi"]
 qoiz = ["ironrdp/qoiz"]
 
@@ -47,7 +48,7 @@ ironrdp = { path = "../ironrdp", version = "0.14", features = [
 ] }
 ironrdp-core = { path = "../ironrdp-core", version = "0.1", features = ["alloc"] }
 ironrdp-cliprdr-native = { path = "../ironrdp-cliprdr-native", version = "0.5" }
-ironrdp-rdpsnd-native = { path = "../ironrdp-rdpsnd-native", version = "0.5" }
+ironrdp-rdpsnd-native = { path = "../ironrdp-rdpsnd-native", version = "0.5", optional = true }
 ironrdp-tls = { path = "../ironrdp-tls", version = "0.2" }
 ironrdp-mstsgu = { path = "../ironrdp-mstsgu" }
 ironrdp-tokio = { path = "../ironrdp-tokio", version = "0.8", features = ["reqwest"] }

crates/ironrdp-client/src/rdp.rs

@@ -16,11 +16,12 @@ use ironrdp::pdu::{PduResult, pdu_other_err};
 use ironrdp::session::image::DecodedImage;
 use ironrdp::session::{ActiveStage, ActiveStageOutput, GracefulDisconnectReason, SessionResult, fast_path};
 use ironrdp::svc::SvcMessage;
-use ironrdp::{cliprdr, connector, rdpdr, rdpsnd, session};
+use ironrdp::{cliprdr, connector, rdpdr, session};
 use ironrdp_core::WriteBuf;
 #[cfg(windows)]
 use ironrdp_dvc_com_plugin::load_dvc_plugin;
 use ironrdp_dvc_pipe_proxy::DvcNamedPipeProxy;
+#[cfg(feature = "native-rdpsnd")]
 use ironrdp_rdpsnd_native::cpal;
 use ironrdp_tokio::reqwest::ReqwestNetworkClient;
 use ironrdp_tokio::{FramedWrite, single_sequence_step_read, split_tokio_framed};
@@ -252,9 +253,13 @@ async fn connect(
 
     let mut connector = connector::ClientConnector::new(config.connector.clone(), client_addr)
         .with_static_channel(drdynvc)
-        .with_static_channel(rdpsnd::client::Rdpsnd::new(Box::new(cpal::RdpsndBackend::new())))
         .with_static_channel(rdpdr::Rdpdr::new(Box::new(NoopRdpdrBackend {}), "IronRDP".to_owned()).with_smartcard(0));
 
+    #[cfg(feature = "native-rdpsnd")]
+    connector.attach_static_channel(ironrdp::rdpsnd::client::Rdpsnd::new(Box::new(
+        cpal::RdpsndBackend::new(),
+    )));
+
     if let Some(builder) = cliprdr_factory {
         let backend = builder.build_cliprdr_backend();
 
@@ -376,9 +381,13 @@ async fn connect_ws(
 
     let mut connector = connector::ClientConnector::new(config.connector.clone(), client_addr)
         .with_static_channel(drdynvc)
-        .with_static_channel(rdpsnd::client::Rdpsnd::new(Box::new(cpal::RdpsndBackend::new())))
         .with_static_channel(rdpdr::Rdpdr::new(Box::new(NoopRdpdrBackend {}), "IronRDP".to_owned()).with_smartcard(0));
 
+    #[cfg(feature = "native-rdpsnd")]
+    connector.attach_static_channel(ironrdp::rdpsnd::client::Rdpsnd::new(Box::new(
+        cpal::RdpsndBackend::new(),
+    )));
+
     if let Some(builder) = cliprdr_factory {
         let backend = builder.build_cliprdr_backend();