* feat: row-based insert
* feat: null value
* roback: null value
* feat: delete by row
* feat: add wal proto
* feat: generate code
* feat: rename mutation type to op type
* feat: Generate code
* feat: An entry per region
* feat: remove region id from WalEntry
* refactor: move mito/wal to wal
* feat: gen
* feat: remove mito
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Co-authored-by: jiachun <jiachun_fjc@163.com>
* feat: add dbname field in proto
* feat: add health check service
* fix: enum must start from 0
* chore: check in generated go sources
* refactor: remove health check response content
* chore: generate go sources