feat: Event 不再继承于 BaseModel

[st1020]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (dbe1ed4) to head (4d99f0d).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #183   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           12        12           
  Lines          916       906   -10     
=========================================
- Hits           916       906   -10     

Flag	Coverage Δ
unittests	100.00% <100.00%> (ø)

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