[Feature Request]: Fix typo "end_tiime"

[dvlpwork]

Describe the solution you'd like

I believe it should be "end_time"

Describe alternatives you've considered

The files to fix are below:

• ./backend/oas/user
• ./backend/oas/provider
• ./docs/oas/user

In additionally, the frontend also needs to be corrected synchronously.

Additional context

No response