Library Specific @Res disables the Standard Approach for POST Assignment Route

[imabp]

Describe the bug
This is more of a Nest code-practices-related bug.

edu-server/src/assignment/assignment.controller.ts

Line 42 in 4bad0b9

@Res() res,

The following @Res approach disables the Standard Approach in NestJS as discussed in the documentation here which helps in auto serialization to JSON

Screenshots (If applicable)

Desktop (please complete the following information):

• OS: Ubuntu 20.04
• Browser: Firefox
• Version: 87

Additional context
To solve this bug, I would request, to add the following
@Res({ passthrough: true })