feat: Add DynamoDB document schemas

[khvn26]

A duplicate of #137 that was merged into a wrong base branch.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 98.31933% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 95.32%. Comparing base (4f1b05a) to head (9213a73).

Files with missing lines	Patch %	Lines
src/common/test_tools/plugin.py	33.33%	4 Missing ⚠️

❌ Your patch status has failed because the patch coverage (98.31%) is below the target coverage (100.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #150      +/-   ##
==========================================
+ Coverage   94.72%   95.32%   +0.60%     
==========================================
  Files          76       79       +3     
  Lines        2444     2673     +229     
==========================================
+ Hits         2315     2548     +233     
+ Misses        129      125       -4     

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