berd-call: turn the Spokesperson on or off from the menu bar

src-tauri/crates/berd-call/README.md

@@ -109,6 +109,11 @@ complete `berd-call session` options. The call keeps its control port, stream,
 blocking policy, mute state, and input-during-TTS policy; the stream emits a lifecycle row because
 transcript cursors restart with the new session.
 
+`berd-call settings --spokesperson true|false`, or Spokesperson in the menu bar,
+restarts the call the same way in the other mode. Agents keep their current
+voice, options only the other mode takes are left out, and in a `--stream live`
+call the Spokesperson comes back with `--allow-direct-agent-speech`.
+
 This crate owns the neutral PCM output contract and backend-neutral TTS stream
 used by Berd, plus the April ONNX runtime and text chunking used by Berd's native
 voice commands. It also owns the concrete Parakeet model loader and complete

src-tauri/crates/berd-call/src/cli_help.rs

@@ -95,13 +95,18 @@ Usage:
   berd-call settings [--port PORT] --tts JSON
   berd-call settings [--port PORT] --input-during-tts allow|suppress
   berd-call settings [--port PORT] --muted true|false
+  berd-call settings [--port PORT] --spokesperson true|false
   berd-call settings [--port PORT] --restart [session options]
 
 The setting applies to subsequent speak calls. In a call started with
 --allow-direct-agent-speech, --voice and --rate change the agents' voice, and
 --spokesperson-voice and --spokesperson-rate change the Spokesperson's (an
-OpenAI realtime voice, 0.25 to 1.5). Non-blocking delivery requires
-a call started with --stream or --codex. Successful delivery produces no notification."#;
+OpenAI realtime voice, 0.25 to 1.5). --spokesperson turns the Spokesperson on
+or off, restarting the call's session in the other mode with the same voice;
+options only the other mode takes are dropped, and in a call started with
+--stream live, agents keep their own voice beside the Spokesperson's.
+Non-blocking delivery requires a call started with --stream or --codex.
+Successful delivery produces no notification."#;
 
 const STATUS_HELP: &str = r#"Inspect the active local voice call.
 

src-tauri/crates/berd-call/src/host_control.rs

@@ -44,6 +44,8 @@ pub(crate) trait HostControl: Send + Sync + 'static {
     ) -> Result<Value, String>;
     fn set_muted(&self, muted: bool) -> Result<Value, String>;
     fn restart(&self, session_arguments: Vec<String>) -> Result<Value, String>;
+    /// Restarts the call's session with the Spokesperson on or off.
+    fn set_spokesperson_mode(&self, on: bool) -> Result<Value, String>;
 }
 
 pub(crate) struct ControlServer {
@@ -154,6 +156,9 @@ pub(crate) enum ControlRequest {
         #[serde(rename = "sessionArguments")]
         session_arguments: Vec<String>,
     },
+    SpokespersonMode {
+        on: bool,
+    },
 }
 
 #[derive(Deserialize, Serialize)]
@@ -204,6 +209,7 @@ pub(crate) fn begin_request(port: u16, request: ControlRequest) -> Result<Pendin
             | ControlRequest::Voice { .. }
             | ControlRequest::Spokesperson { .. }
             | ControlRequest::Restart { .. }
+            | ControlRequest::SpokespersonMode { .. }
     ) {
         None
     } else {
@@ -273,6 +279,7 @@ fn handle_connection(mut stream: TcpStream, control: &dyn HostControl) -> Result
                 ControlRequest::InputDuringTts { policy } => control.set_input_during_tts(policy),
                 ControlRequest::Muted { muted } => control.set_muted(muted),
                 ControlRequest::Restart { session_arguments } => control.restart(session_arguments),
+                ControlRequest::SpokespersonMode { on } => control.set_spokesperson_mode(on),
             },
         );
     let response = match result {
@@ -416,6 +423,9 @@ mod tests {
         fn restart(&self, session_arguments: Vec<String>) -> Result<Value, String> {
             Ok(json!({"sessionArguments": session_arguments}))
         }
+        fn set_spokesperson_mode(&self, on: bool) -> Result<Value, String> {
+            Ok(json!({"spokesperson": on}))
+        }
         fn status(&self) -> Result<Value, String> {
             Ok(json!({"running": !self.stopped.load(Ordering::SeqCst)}))
         }