fix(proxy-engine): improve inbound SIP routing diagnostics and enrich leg media state reporting

ts/runtime/status-store.ts

@@ -213,6 +213,10 @@ export class StatusStore {
       legs: [...call.legs.values()].map((leg) => ({
         id: leg.id,
         type: leg.type,
+        state: leg.state,
+        codec: leg.codec,
+        rtpPort: leg.rtpPort,
+        remoteMedia: leg.remoteMedia,
         metadata: leg.metadata || {},
       })),
     });
@@ -255,6 +259,15 @@ export class StatusStore {
     const existingLeg = call.legs.get(data.leg_id);
     if (existingLeg) {
       existingLeg.state = data.state;
+      if (data.codec !== undefined) {
+        existingLeg.codec = data.codec;
+      }
+      if (data.rtpPort !== undefined) {
+        existingLeg.rtpPort = data.rtpPort;
+      }
+      if (data.remoteMedia !== undefined) {
+        existingLeg.remoteMedia = data.remoteMedia;
+      }
       if (data.metadata) {
         existingLeg.metadata = data.metadata;
       }
@@ -265,9 +278,9 @@ export class StatusStore {
       id: data.leg_id,
       type: this.inferLegType(data.leg_id),
       state: data.state,
-      codec: null,
-      rtpPort: null,
-      remoteMedia: null,
+      codec: data.codec ?? null,
+      rtpPort: data.rtpPort ?? null,
+      remoteMedia: data.remoteMedia ?? null,
       metadata: data.metadata || {},
     });
   }