keywords showing / keywords disappearing / content changing detect

[lgh06]

write another worker, subscribe mongodb task_execute_history changes, produce email notify to RabbitMQ.
for keywords showing / keywords disappearing / content changing detect , in a task_execute_history time-series MongoDB collection, for simple mode

[lgh06]

for keywords showing / keywords disappearing string match, do a multiple select and input, in web frontend, then save to task table. need to add some fields.

[lgh06]

https://docs.mongodb.com/manual/tutorial/deploy-replica-set/
https://docs.mongodb.com/manual/tutorial/convert-standalone-to-replica-set/

https://docs.mongodb.com/manual/changeStreams/

[lgh06]

extra detectMode 1 and 2. nodemailer.

[lgh06]

time-series DB hold. keywords disappear hold. subscribe change stream hold.