[feat][evaluation]fix evaluation bugs

[tpfz]

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[CozeLoop]

Submitting review comments. Summary: 1) handle BatchGet error logging; 2) handle Ext JSON unmarshal errors; 3) align k8s Helm SQL schema with Docker Compose by adding ext column.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

@@            Coverage Diff             @@
##             main     #338      +/-   ##
==========================================
+ Coverage   69.88%   70.10%   +0.22%     
==========================================
  Files         588      588              
  Lines       54452    54468      +16     
==========================================
+ Hits        38052    38185     +133     
+ Misses      13525    13399     -126     
- Partials     2875     2884       +9     

Flag	Coverage Δ
unittests	70.10% <100.00%> (+0.22%)	⬆️

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Files with missing lines	Coverage Δ
...pplication/convertor/evaluator/evaluator_record.go	100.00% <100.00%> (+56.25%)	⬆️
...nd/modules/evaluation/domain/entity/expt_result.go	57.29% <ø> (ø)
...ation/domain/service/expt_manage_execution_impl.go	68.65% <100.00%> (+15.54%)	⬆️
...es/evaluation/domain/service/expt_run_item_impl.go	67.72% <100.00%> (+6.68%)	⬆️

... and 2 files with indirect coverage changes

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