refactor: mnode snapshot

fix(os): add one win case

Rephrased sentences.

Rephrasing in some places.

docs: refine a  statement

Minor stylistic changes.

Additions, rephrasing.

Some additions, stylistic changes, grammar, spelling changes.

Added some phrases.
Stylistic changes.

stylistic change

grammatical, stylistic and one spelling change.

Minor changes - grammatical, stylistic

grammatical, stylistic and added tumbling window to concept of "flip time" window.

enh(sync): add SSnapshot callback: reader, writer

fix: init buffer to avoid invalid write

fix(os): reduce ctest case

fix: fix memory leak

fix(query): set correct start offset of binary data when trimming values.

enh: refactor rpc code