refactor: support options for wal append methods

[ifplusor]

No description provided.

[codecov]

Codecov Report

Merging #96 (0e95a31) into main (164757f) will increase coverage by 0.10%.
The diff coverage is 70.27%.

@@            Coverage Diff             @@
##             main      #96      +/-   ##
==========================================
+ Coverage   40.69%   40.80%   +0.10%     
==========================================
  Files          92       92              
  Lines        7987     7990       +3     
==========================================
+ Hits         3250     3260      +10     
+ Misses       4486     4479       -7     
  Partials      251      251              

Impacted Files	Coverage Δ
internal/raft/log/log.go	0.00% <0.00%> (ø)
internal/store/meta/async.go	0.00% <0.00%> (ø)
internal/store/meta/sync.go	0.00% <0.00%> (ø)
internal/store/wal/wal.go	66.96% <74.28%> (+3.28%)	⬆️

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[xdlbdy]

LGTM