> CLOSE AI-319
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## Summary by CodeRabbit
* **New Features**
* Improved block insertion behavior by specifying the reference block
after which new blocks are inserted.
* **Bug Fixes**
* Enhanced accuracy and clarity of block diffing and patch application,
ensuring correct handling of insertions and deletions.
* **Tests**
* Added and updated test cases to verify correct handling of interval
insertions, deletions, and complete block replacements.
* Updated test expectations to include explicit insertion context for
greater consistency.
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