PatchCollection : Grant access to previous model during update

[veewee]

Q	A
Type	improvement
BC Break	no
Fixed issues

Summary

[Copilot]

Pull Request Overview

This PR modifies the PatchCollection class to provide access to the previous model during update operations. The update callback now receives both the new and previous versions of the model being updated.

• Updated the update callback signature to accept both current and previous model data
• Modified the internal implementation to create a lookup table for previous collection items
• Updated test expectations to verify the previous model is correctly passed to the update callback

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/Collection/PatchCollection.php	Modified patch method to pass previous model to update callback and added lookup functionality
tests/Unit/Collection/PatchCollectionTest.php	Updated test to verify new update callback signature and behavior

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