feat(routing): require explicit inbound DID routes and normalize SIP identities for provider-based number matching

rust/crates/proxy-engine/src/webrtc_engine.rs

@@ -58,9 +58,7 @@ impl WebRtcEngine {
             .register_default_codecs()
             .map_err(|e| format!("register codecs: {e}"))?;
 
-        let api = APIBuilder::new()
-            .with_media_engine(media_engine)
-            .build();
+        let api = APIBuilder::new().with_media_engine(media_engine).build();
 
         let config = RTCConfiguration {
             ice_servers: vec![],
@@ -91,8 +89,7 @@ impl WebRtcEngine {
             .map_err(|e| format!("add track: {e}"))?;
 
         // Shared mixer channel sender (populated when linked to a call).
-        let mixer_tx: Arc<Mutex<Option<mpsc::Sender<RtpPacket>>>> =
-            Arc::new(Mutex::new(None));
+        let mixer_tx: Arc<Mutex<Option<mpsc::Sender<RtpPacket>>>> = Arc::new(Mutex::new(None));
 
         // ICE candidate handler.
         let out_tx_ice = self.out_tx.clone();
@@ -256,7 +253,11 @@ impl WebRtcEngine {
 
     pub async fn close_session(&mut self, session_id: &str) -> Result<(), String> {
         if let Some(session) = self.sessions.remove(session_id) {
-            session.pc.close().await.map_err(|e| format!("close: {e}"))?;
+            session
+                .pc
+                .close()
+                .await
+                .map_err(|e| format!("close: {e}"))?;
         }
         Ok(())
     }