feat: use copier to convert structs

[seeflood]

Signed-off-by: seeflood [email protected]

What this PR does:
Use copier to convert structs
I used to use json marshal/unmarshal to convert requests, which is bad :(

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[codecov]

Codecov Report

Base: 60.56% // Head: 60.56% // No change to project coverage 👍

Coverage data is based on head (06675ea) compared to base (b07ff39).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #803   +/-   ##
=======================================
  Coverage   60.56%   60.56%           
=======================================
  Files         133      133           
  Lines        8340     8340           
=======================================
  Hits         5051     5051           
  Misses       2712     2712           
  Partials      577      577           

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