Adopt shared hydration pipeline from Data

[alganet]

• Use Collection::resolveEntityName() in fetchSingle() instead of instanceof Typed check, removing the Typed import entirely
• Delegate Filtered persist to parent::persist() which now handles it in AbstractMapper
• Remove postHydrate(), tryHydration(), buildEntitiesInstances() — now inherited from AbstractMapper
• Remove dead $entities initialization in fetchMulti()
• Remove unused getSetterStyle() method and str_replace import
• Remove unnecessary $factory local variable aliases, access $this->entityFactory directly
• Fix extractAndOperateCompositions() to use key-based removal instead of value-based array_diff, with test for matching-value edge case
• Assert getColumnMeta() result instead of silently skipping

[Copilot]

Pull request overview

This PR updates Respect\Relational\Mapper to adopt the shared hydration/persistence pipeline now provided by respect/data’s AbstractMapper, reducing local duplication while keeping Relational-specific query building and entity materialization.

Changes:

• Delegate Filtered persistence and hydration steps to AbstractMapper (removing local hydration helpers and simplifying persist()/fetch flows).
• Replace Typed-specific logic in fetchSingle() with Collection::resolveEntityName(), removing the Typed dependency/import.
• Simplify entity factory usage by removing local aliases and using $this->entityFactory directly.

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.31%. Comparing base (7d59a55) to head (5ced426).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #100      +/-   ##
============================================
- Coverage     99.37%   99.31%   -0.07%     
+ Complexity      180      165      -15     
============================================
  Files             3        3              
  Lines           478      436      -42     
============================================
- Hits            475      433      -42     
  Misses            3        3              

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