History data structure refactoring

[yohamta]

• Improved latest status fetching performance

[codecov]

Codecov Report

Attention: Patch coverage is 71.03448% with 252 lines in your changes missing coverage. Please review.

Project coverage is 63.66%. Comparing base (4065af3) to head (82a75cd).
Report is 1 commits behind head on 1.5.

Files with missing lines	Patch %	Lines
internal/persistence/history/jsondb/jsondb.go	69.21%	90 Missing and 59 partials ⚠️
internal/client/client.go	64.38%	25 Missing and 1 partial ⚠️
internal/dag/loader.go	76.59%	7 Missing and 4 partials ⚠️
internal/scheduler/job.go	0.00%	10 Missing ⚠️
cmd/restart.go	75.00%	4 Missing and 3 partials ⚠️
internal/agent/agent.go	73.07%	0 Missing and 7 partials ⚠️
internal/scheduler/scheduler.go	62.50%	5 Missing and 1 partial ⚠️
internal/persistence/history/model.go	88.63%	3 Missing and 2 partials ⚠️
internal/persistence/local/dag_store.go	0.00%	5 Missing ⚠️
internal/agent/reporter.go	75.00%	4 Missing ⚠️
... and 8 more

Additional details and impacted files

@@            Coverage Diff             @@
##              1.5     #666      +/-   ##
==========================================
- Coverage   64.08%   63.66%   -0.42%     
==========================================
  Files          53       55       +2     
  Lines        4318     4605     +287     
==========================================
+ Hits         2767     2932     +165     
- Misses       1298     1397      +99     
- Partials      253      276      +23     

Files with missing lines	Coverage Δ
cmd/modules.go	100.00% <100.00%> (ø)
cmd/scheduler.go	65.71% <100.00%> (ø)
cmd/server.go	87.50% <100.00%> (ø)
cmd/status.go	75.00% <100.00%> (+1.08%)	⬆️
internal/client/interface.go	100.00% <100.00%> (ø)
internal/dag/scheduler/node.go	84.49% <100.00%> (ø)
internal/dag/step.go	100.00% <ø> (ø)
internal/logger/file.go	85.18% <100.00%> (ø)
internal/persistence/client/factory.go	92.30% <100.00%> (ø)
internal/persistence/history/jsondb/writer.go	74.46% <100.00%> (ø)
... and 21 more

... and 1 file with indirect coverage changes

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