refactor: output struct

[PeterChen13579]

fixes #2452

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.94%. Comparing base (7a2090b) to head (d2c5ac2).
⚠️ Report is 2 commits behind head on develop.

Files with missing lines	Patch %	Lines
src/rpc/handlers/AccountInfo.cpp	71.42%	0 Missing and 2 partials ⚠️
src/rpc/handlers/GetAggregatePrice.cpp	60.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2456      +/-   ##
===========================================
- Coverage    79.99%   79.94%   -0.06%     
===========================================
  Files          381      381              
  Lines        15782    15766      -16     
  Branches      8256     8254       -2     
===========================================
- Hits         12625    12604      -21     
- Misses        1891     1892       +1     
- Partials      1266     1270       +4     

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