fix(extension): resolve 10-item limit truncation & WS zombie disconnection (v0.5.14)

extension/src/step-probe.ts

@@ -178,7 +178,8 @@ function setupMonitor() {
             ctx.logToFile(`[POLL#${pollCount}] alive`);
         }
         try {
-            const allTraj = await ctx.sdk.ls.rawRPC('GetAllCascadeTrajectories', {});
+            // Fix (v0.5.14): Reverted 100-limit DoS but restored descending: true with a safe limit of 30
+            const allTraj = await ctx.sdk.ls.rawRPC('GetAllCascadeTrajectories', { limit: 30, descending: true });
             if (!allTraj?.trajectorySummaries) {
                 if (pollCount <= 3) ctx.logToFile('[POLL] no trajectorySummaries');
                 return;

extension/src/ws-client.ts

@@ -124,6 +124,7 @@ export class WSBridgeClient {
     private heartbeatTimer: NodeJS.Timeout | null = null;
     private authTimer: NodeJS.Timeout | null = null;
     private lastPongTime: number = 0;
+    private forceHeartbeatTimeoutIfNoPong = false;
 
     // Message queue (survives reconnection)
     private messageQueue: WSMessage[] = [];
@@ -440,6 +441,14 @@ export class WSBridgeClient {
                 break;
             }
 
+            case 'pong': {
+                // Sent by Hub in response to our 'heartbeat' JSON message
+                // This is crucial for Browser-style WebSockets that don't expose native ping/pong
+                this.forceHeartbeatTimeoutIfNoPong = true;
+                this.lastPongTime = Date.now();
+                break;
+            }
+
             default:
                 this.logFn(`[WS] Unknown message type: ${msg.type}`);
         }
@@ -498,7 +507,8 @@ export class WSBridgeClient {
         this.heartbeatTimer = setInterval(() => {
             if (this.ws && this.connected) {
                 // Check for zombie connection (no pong for 60s)
-                if (Date.now() - this.lastPongTime > 60000) {
+                const isNodeWs = (typeof this.ws.ping === 'function');
+                if ((isNodeWs || this.forceHeartbeatTimeoutIfNoPong) && Date.now() - this.lastPongTime > 60000) {
                     this.logFn('[WS] Heartbeat timeout — no pong received for 60s (zombie connection), terminating');
                     if (this.ws) {
                         try { this.ws.terminate(); } catch { try { this.ws.close(); } catch { } }