explicit exit, fix error in ingestor

packages/appview/src/index.ts

···
   async close() {
     this.ctx.logger.info('sigint received, shutting down')
     await this.ctx.ingester.destroy()
-    return new Promise<void>((resolve) => {
+    await new Promise<void>((resolve) => {
       this.server.close(() => {
         this.ctx.logger.info('server closed')
         resolve()
···
   const onCloseSignal = async () => {
     setTimeout(() => process.exit(1), 10000).unref() // Force shutdown after 10s
     await server.close()
+    process.exit(0)
   }
 
   process.on('SIGINT', onCloseSignal)

packages/appview/src/ingestors/jetstream.ts

···
   private cursor?: number
   private ws?: WebSocket
   private isStarted = false
+  private isDestroyed = false
   private wantedCollections: string[]
 
   constructor({
···
   start() {
     if (this.isStarted) return
     this.isStarted = true
+    this.isDestroyed = false
     this.ws = new WebSocket(this.constructUrlWithQuery())
 
     this.ws.on('open', () => {
···
     })
 
     this.ws.on('close', (code, reason) => {
-      this.logger.error(`Jetstream closed. Code: ${code}, Reason: ${reason}`)
+      if (!this.isDestroyed) {
+        this.logger.error(`Jetstream closed. Code: ${code}, Reason: ${reason}`)
+      }
       this.isStarted = false
     })
   }
 
   destroy() {
     if (this.ws) {
+      this.isDestroyed = true
       this.ws.close()
       this.isStarted = false
     }