fix(remoteingress edge/hub crash recovery): prevent duplicate crash recovery listeners and reset saved runtime state on shutdown

ts/classes.remoteingresshub.ts

@@ -127,7 +127,8 @@ export class RemoteIngressHub extends EventEmitter {
       throw new Error('Failed to spawn remoteingress-bin');
     }
 
-    // Register crash recovery handler
+    // Register crash recovery handler (remove first to avoid duplicates)
+    this.bridge.removeListener('exit', this.handleCrashRecovery);
     this.bridge.on('exit', this.handleCrashRecovery);
 
     await this.bridge.sendCommand('startHub', {
@@ -158,6 +159,8 @@ export class RemoteIngressHub extends EventEmitter {
       this.bridge.kill();
       this.started = false;
     }
+    this.savedConfig = null;
+    this.savedEdges = [];
   }
 
   /**
@@ -214,6 +217,7 @@ export class RemoteIngressHub extends EventEmitter {
         return;
       }
 
+      this.bridge.removeListener('exit', this.handleCrashRecovery);
       this.bridge.on('exit', this.handleCrashRecovery);
 
       const config = this.savedConfig;