feat(api): enhance peer session tracking and error handling

- Added `PollError` field to `peerSessionOnSpeaker` and `liveSpeakerPoll` types to capture polling errors for speakers.
- Updated `matchPeerOnSpeakers` function to handle polling errors and adjust session state reporting.
- Modified frontend components to display polling error messages alongside session states, improving user visibility into peer connection statuses.
- Enhanced API response structure to include live speaker polling information, facilitating better monitoring of speaker health.

internal/httpapi/peers_live.go

@@ -33,6 +33,15 @@ type peerSessionOnSpeaker struct {
 	SpeakerID string `json:"speaker_id"`
 	Label     string `json:"label"`
 	State     string `json:"state"`
+	PollError string `json:"poll_error,omitempty"`
+}
+
+type liveSpeakerPoll struct {
+	SpeakerID    string `json:"speaker_id"`
+	Label        string `json:"label"`
+	OK           bool   `json:"ok"`
+	SessionCount int    `json:"session_count"`
+	PollError    string `json:"poll_error,omitempty"`
 }
 
 func speakerDisplayLabel(sp *store.Speaker) string {
@@ -136,6 +145,29 @@ func (s *Server) collectSpeakerBGPLive(ctx context.Context, tenantID string, fre
 	return views
 }
 
+func liveSpeakerPollJSON(views []speakerBGPLive) []liveSpeakerPoll {
+	out := make([]liveSpeakerPoll, 0, len(views))
+	for _, v := range views {
+		out = append(out, liveSpeakerPoll{
+			SpeakerID:    v.SpeakerID,
+			Label:        v.Label,
+			OK:           v.Error == "",
+			SessionCount: len(v.Sessions),
+			PollError:    v.Error,
+		})
+	}
+	return out
+}
+
+func findPeerSession(sessions []birdfmt.BGPSession, protoName string, neighbor netip.Addr, hasNeighbor bool) *birdfmt.BGPSession {
+	for i := range sessions {
+		if peerSessionMatches(sessions[i], protoName, neighbor, hasNeighbor) {
+			return &sessions[i]
+		}
+	}
+	return nil
+}
+
 func matchPeerOnSpeakers(peer *store.BGPPeer, views []speakerBGPLive) (
 	bestState string,
 	connectedID string,
@@ -152,24 +184,33 @@ func matchPeerOnSpeakers(peer *store.BGPPeer, views []speakerBGPLive) (
 
 	for _, v := range views {
 		if v.Error != "" && len(v.Sessions) == 0 {
-			continue
-		}
-		for _, sess := range v.Sessions {
-			if !peerSessionMatches(sess, protoName, neighbor, hasNeighbor) {
-				continue
-			}
-			hit := peerSessionOnSpeaker{
+			on = append(on, peerSessionOnSpeaker{
 				SpeakerID: v.SpeakerID,
 				Label:     v.Label,
-				State:     sess.State,
-			}
-			on = append(on, hit)
-			if strings.EqualFold(strings.TrimSpace(sess.State), "Established") {
-				establishedOn = append(establishedOn, hit)
-			}
-			if bestState == "" || sessionStateRank(sess.State) > sessionStateRank(bestState) {
-				bestState = sess.State
-			}
+				PollError: v.Error,
+			})
+			continue
+		}
+		sess := findPeerSession(v.Sessions, protoName, neighbor, hasNeighbor)
+		if sess == nil {
+			on = append(on, peerSessionOnSpeaker{
+				SpeakerID: v.SpeakerID,
+				Label:     v.Label,
+				State:     "absent",
+			})
+			continue
+		}
+		hit := peerSessionOnSpeaker{
+			SpeakerID: v.SpeakerID,
+			Label:     v.Label,
+			State:     sess.State,
+		}
+		on = append(on, hit)
+		if strings.EqualFold(strings.TrimSpace(sess.State), "Established") {
+			establishedOn = append(establishedOn, hit)
+		}
+		if bestState == "" || sessionStateRank(sess.State) > sessionStateRank(bestState) {
+			bestState = sess.State
 		}
 	}
 
@@ -183,7 +224,7 @@ func matchPeerOnSpeakers(peer *store.BGPPeer, views []speakerBGPLive) (
 		if len(establishedOn) == 1 {
 			connectedID = establishedOn[0].SpeakerID
 		}
-	} else if len(on) == 1 {
+	} else if len(on) == 1 && on[0].PollError == "" && on[0].State != "" {
 		connectedID = on[0].SpeakerID
 		connectedLabel = on[0].Label
 	}
@@ -209,11 +250,11 @@ func peerSessionMatches(sess birdfmt.BGPSession, protoName string, neighbor neti
 	if !hasNeighbor || strings.TrimSpace(sess.Neighbor) == "" {
 		return false
 	}
-	addr, err := netip.ParseAddr(strings.TrimSpace(sess.Neighbor))
-	if err != nil {
+	peerAddr, ok := store.ParsePeerNeighbor(sess.Neighbor)
+	if !ok {
 		return false
 	}
-	return addr == neighbor
+	return peerAddr == neighbor
 }
 
 func sessionStateRank(state string) int {
@@ -233,26 +274,17 @@ func sessionStateRank(state string) int {
 
 func applyPeerLiveFields(row map[string]any, peer *store.BGPPeer, views []speakerBGPLive) {
 	state, connID, connLabel, establishedOn, on, mismatch := matchPeerOnSpeakers(peer, views)
-	if len(on) > 0 {
-		if state != "" {
-			row["session_state"] = state
-		}
-		row["connected_speaker_id"] = peerLiveSpeakerIDOrNull(connID)
-		row["connected_speaker_label"] = connLabel
-		row["session_on_speakers"] = on
-		if len(establishedOn) > 0 {
-			row["established_on_speakers"] = establishedOn
-		} else {
-			row["established_on_speakers"] = []peerSessionOnSpeaker{}
-		}
-		row["session_conflict"] = false
-		row["session_mismatch"] = mismatch
-		return
-	}
-	row["session_on_speakers"] = []peerSessionOnSpeaker{}
-	row["established_on_speakers"] = []peerSessionOnSpeaker{}
+	row["session_on_speakers"] = on
+	row["established_on_speakers"] = establishedOn
 	row["session_conflict"] = false
-	row["session_mismatch"] = false
+	row["session_mismatch"] = mismatch
+	if state != "" {
+		row["session_state"] = state
+	}
+	if connLabel != "" {
+		row["connected_speaker_label"] = connLabel
+	}
+	row["connected_speaker_id"] = peerLiveSpeakerIDOrNull(connID)
 }
 
 func peerLiveSpeakerIDOrNull(id string) any {