New

• You can get the version of Loro by LORO_VERSION
• setNextCommitOrigin(origin: string): Set the origin of the next commit.
• setNextCommitTimestamp(timestamp: number): Set the timestamp of the next commit.
• setNextCommitOptions(options: CommitOption): Set the options of the next commit.
• clearNextCommitOptions(): Clear the options of the next commit.
• configDefaultTextStyle(style: TextStyle): Configures the default text style for the document.
• getUncommittedOpsAsJson(): Get the pending operations from the current transaction in JSON format

Fix

• fix: memory leak issue #647
• fix: mark err on detached LoroText #659
• fix: detached loro text issues #665
• fix: entity index when the tree is empty #670