feat(sharding): enabled sharding feature on db

[cnlangzi]

Changes

• added sharding feature on DB

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 68.18182% with 42 lines in your changes are missing coverage. Please review.

Project coverage is 66.66%. Comparing base (5f6f7d6) to head (b09683c).

Files	Patch %	Lines
context.go	63.41%	21 Missing and 9 partials ⚠️
use.go	0.00%	12 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #13      +/-   ##
==========================================
+ Coverage   64.60%   66.66%   +2.06%     
==========================================
  Files          27       29       +2     
  Lines        1082     1101      +19     
==========================================
+ Hits          699      734      +35     
+ Misses        307      285      -22     
- Partials       76       82       +6     

Flag	Coverage Δ
Unit-Tests	66.66% <68.18%> (+2.06%)	⬆️

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