fix(server): Default Store with HStore

[JackyYangPassion]

Purpose of the PR

• close [Feature] Change Server Config default KV Store from rocksDB to HStore #2672

Main Changes

Verifying these changes

• Trivial rework / code cleanup without any test coverage. (No Need)
• Already covered by existing tests, such as (please modify tests here).
• Need tests and can be verified as follows:
  • xxx

Does this PR potentially affect the following parts?

• Dependencies (add/update license info & regenerate_dependencies)
• Modify configurations
• The public API
• Other affects (typed here)
• Nope

Documentation Status

• Doc - TODO
• Doc - Done
• Doc - No Need

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 37.86%. Comparing base (4274b72) to head (539ef36).

❗ There is a different number of reports uploaded between BASE (4274b72) and HEAD (539ef36). Click for more details.

HEAD has 5 uploads less than BASE

Flag	BASE (4274b72)	HEAD (539ef36)
	7	2

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2673      +/-   ##
============================================
- Coverage     47.55%   37.86%   -9.70%     
+ Complexity      820      541     -279     
============================================
  Files           718      718              
  Lines         58490    58490              
  Branches       7496     7496              
============================================
- Hits          27817    22148    -5669     
- Misses        27890    33957    +6067     
+ Partials       2783     2385     -398     

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