Added register-admin route, reading json data from body

[dhananjaysingh10]

Issue #76
solved the problem, admin data saving multiple time in DB
Added register-admin route
Saving password in encrypted form in DB
I have improved my code, please let me no if there are some error. I will try my best to fix them.

[github-actions]

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[dhananjaysingh10]

Sorry I closed the last PR by mistake, This PR has no merge conflict, also ADMIN Data is NOT Saved multiple times in DB. Also there is no hard coded value now. to access the admin page first we have to Register then only we can login to admin dashboard

[Sahil1786]

Show me some images

[dhananjaysingh10]

Pls check the attached images in sequence

1. Shown already registered user in MongoDB
   

2. Trying to re register show error " Already registered, please login "
   

3. Then i registered new user,
   

4. only one entry is created also you can not re register using that email
   

5. response of /admin-login, showing successful login
   

6. response of /admin-login when data is invalid or not found in DB
   

[dhananjaysingh10]

Sir there is no username, in user schema,
email
password
fullName
Mobile should we add it to schema, also register-admin route can be improved base on field required to register user and adding refresh token for validation , file upload like avatar for user.

All the schemas should be defined more precisely for ease of other developer so we do not need to revise the same portion of code again and again as our schema changes
If you can provide the requirements i can design the schema on figma, after validation we can update the models code also.

[dhananjaysingh10]

Hello @Sahil1786 please let me know if there is any problem in the code

[Sahil1786]

branch has conflicts that must be resolved

[dhananjaysingh10]

@Sahil1786 please check it does not have any conflict right now

[dhananjaysingh10]

@Sahil1786 Please check my work and suggest changes if needed.
and I want to work on this part of the project suggested earlier in the comments
there is no username, in the user schema,
email
password
fullName
Mobile should we add it to the schema, also, the register-admin route can be improved based on the field required to register the user adding a refresh token for validation, and file upload like an avatar for the user and admin.

All the schemas should be defined more precisely for the ease of other developers so we do not need to revise the same portion of code again and again as our schema changes
If you can provide the requirements I can design the schema, after validation we can update the MongoDB models also.