* fix(json2): failed to compact memtable
* fix: cargo clippy
* refactor: align schema with json2 filed in flush
* chore: add unit test for json aligner
* chore: add json2 integration test
* fix: cr by codex
* fix: use parquet schema for encoded JSON2 memtable parts
* Use is_structured_json_field to determine whether the field is of JSON2 type.
* fix: cargo clippy
* fix: only align structured json fields
* chore: assert bulk JSON2 aligner input schemas in debug
