Filter ICE candidates by role in offerer polling

- Offerer now filters for answerer ICE candidates only
- Ignores own candidates returned from server
- Uses role field to distinguish between offerer and answerer candidates
- Improves logging to show answerer candidate count

src/App.jsx

@@ -253,9 +253,13 @@ export default function App() {
           const pc = offerIdToPeerConnection[offerId];
 
           if (pc && candidates.length > 0) {
-            console.log(`[Host Polling] Processing ${candidates.length} ICE candidate(s) for offer ${offerId}`);
+            // Filter for answerer candidates only (offerer doesn't need their own candidates back)
+            const answererCandidates = candidates.filter(item => item.role === 'answerer');
 
-            for (const item of candidates) {
+            if (answererCandidates.length > 0) {
+              console.log(`[Host Polling] Processing ${answererCandidates.length} answerer ICE candidate(s) for offer ${offerId}`);
+
+              for (const item of answererCandidates) {
                 if (item.candidate) {
                   try {
                     await pc.addIceCandidate(new RTCIceCandidate(item.candidate));
@@ -269,9 +273,10 @@ export default function App() {
               }
             }
           }
+        }
 
         if (totalIceCandidates > 0) {
-          console.log(`✅ [Host Polling] Added ${totalIceCandidates} ICE candidate(s)`);
+          console.log(`✅ [Host Polling] Added ${totalIceCandidates} answerer ICE candidate(s)`);
         }
       } catch (err) {
         console.error('[Host Polling] Error polling:', err);