Pi Zero doesn’t have any power limiting circuits - however - it’s best not to exceed 1A with all things USB.
If you are using high powered USB devices then it would be best to use a Powered Hub (nothing you have described is high powered though). If you are using a Powered Hub, then ensure the Pi Zero is never in a configuration where the PWR microUSB and OTG are powered from different sources. Only have one power source connected at a time. Use the data-only lead on the Powered Hub if an independent supply is used on The RPI’s PWR connector.
If you are powering the Pi Zero from only the Powered Hub, then it’s fine to connect both the PWR and OTG to the hub.
As for just Pi Zero power usage - it will vary between 80-120 mA depending on how you are using it / what is enabled. So your 1000mA Power Supply will work just fine.
