Allow BackedEnum as default value in Column definition

[roxblnfk]

🔍 What was changed

This pull request adds support for using backed enum values as default values in columns annotated with the Column attribute. It also introduces a corresponding test to ensure that the default value is correctly set to the enum's backing value.

Enhancements to enum default value handling:

• Updated the Column annotation's constructor to set the default value to the enum's backing value when a backed enum is provided as the default. (src/Annotation/Column.php, src/Annotation/Column.phpR75)

Testing improvements:

• Added a new property column10 to ColumnTest that uses a backed enum as the default value, and introduced a test method to verify the correct default handling and type. (tests/Annotated/Unit/Attribute/ColumnTest.php, [1] [2]

📝 Checklist

• Closes 💡 Allow setting enum cases as property defaults #120
• How was this tested:
  • Tested manually
  • Unit tests added

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.90%. Comparing base (dde50bd) to head (53c1288).

Additional details and impacted files

@@            Coverage Diff            @@
##                4.x     #122   +/-   ##
=========================================
  Coverage     91.89%   91.90%           
- Complexity      328      329    +1     
=========================================
  Files            38       38           
  Lines           839      840    +1     
=========================================
+ Hits            771      772    +1     
  Misses           68       68           

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[Copilot]

Pull request overview

This pull request adds support for passing a PHP BackedEnum case as the default value in the #[Column] attribute, ensuring the stored schema default uses the enum’s backing scalar value rather than the enum object.

Changes:

• Convert BackedEnum defaults in Column construction to their backing scalar (->value).
• Add a unit-test case covering a backed-enum default and asserting the resulting column default/type.

Reviewed changes

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

File	Description
src/Annotation/Column.php	Normalizes BackedEnum defaults to backing values during Column instantiation.
tests/Annotated/Unit/Attribute/ColumnTest.php	Adds coverage ensuring enum-case defaults are persisted as backing scalar defaults.

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