fix: use well known flag in after incoming middleware hook

src/bp/core/services/dialog/instruction/queue.test.ts

@@ -13,6 +13,7 @@ describe('Instruction Queue', () => {
 
   describe('Has instructions', () => {
     it('Returns true when not empty', () => {
+      const yo = queue.yo
       expect(queue.hasInstructions()).toBeTruthy()
     })
   })

src/bp/core/services/dialog/instruction/queue.ts

@@ -12,6 +12,10 @@ export class InstructionQueue {
     }
   }
 
+  get yo() {
+    return 'yo'
+  }
+
   get instructions() {
     return this._instructions
   }

src/bp/vanilla/global/hooks/after_incoming_middleware/00_dialog_engine.js

@@ -1,4 +1,5 @@
 const messageTypesToDiscard = ['session_reset', 'typing', 'visit']
+
 if (messageTypesToDiscard.includes(event.type)) {
-  event.setFlag('skipDialogEngine', true)
+  event.setFlag(bp.IO.WellKnownFlags.SKIP_DIALOG_ENGINE, true)
 }