[Feature]: Implement user registration with email verification flow (backend)

[04shubham7]

So, what is it about?

Create API endpoints for new user registration with sending verification emails through a mock or real email service.

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[LONECODER1]

@04shubham7 assign it to me

[anandshukla15]

I'd like to take this issue. Can you assign it to me?
I’ll implement user registration with email verification using Nodemailer + token-based verification, unless you prefer a different service.
@04shubham7

[04shubham7]

@anandshukla15 Assigning you but start working when JWTs are implemented #20

[04shubham7]

@anandshukla15 Start working JWTs issue had been resolved

[rahulkumardas45]

Assign this issue to me