closes #306

[jschalk]

Summary by Sourcery

Implement support for managing healer IDs within idea units, including the ability to insert and delete these IDs. Enhance the test suite to cover these new operations, ensuring the system's integrity and correctness.

New Features:

• Introduce functionality to handle 'healerhold' operations in the system, allowing insertion and deletion of healer IDs within idea units.

Tests:

• Add tests to verify the correct behavior of inserting and deleting healer IDs in idea units, ensuring the system accurately reflects these changes.

[sourcery-ai[bot]]

Reviewer's Guide by Sourcery

This pull request implements functionality for managing healer holds in the idea unit, including adding and removing healer IDs. It also adds corresponding test cases for these new operations.

File-Level Changes

Change	Details	Files
Implement healer hold functionality for idea units	Add healer_id_str to function parameters Implement _modify_bud_idea_healerhold_delete function Implement _modify_bud_idea_healerhold_insert function Add _modify_bud_idea_healerhold function to handle both insert and delete operations Update modify_bud_with_atomunit to include healer hold modifications	src/gift/atom.py
Add test cases for healer hold operations	Implement test_ChangeUnit_get_edited_bud_ReturnsCorrectObj_BudUnit_insert_idea_healerhold Implement test_ChangeUnit_get_edited_bud_ReturnsCorrectObj_BudUnit_delete_idea_healerhold Add healer_id_str to function parameters	src/gift/test_change/test_change_after_bud.py

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