feat: Detailed Agent reports and time tracking

Is your feature request related to a problem? Please describe.
Need to track agent working hours but the api for agent only provides below information.
Even the user details api does not provide information sign in count, sign in / sign out time for today

Describe the solution you'd like
There is no way to monitor the agents information in detail. Agents reports are very primitive.
Only number of conversations and messages is shown and total resolution time is given but no details per conversation.

Describe alternatives you've considered
Only alternative seems to directly get information using rails.

Additional context
I want to monitor agents conversations as an admin and also want to check time spent by them on conversations or chatwoot platform in general.