Add PredefinedQueueProvider

[vjik]

Q	A
Is bugfix?	❌
New feature?	✔️
Breaks BC?	❌
Tests pass?	✔️

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.57%. Comparing base (57c3fe7) to head (1e5b8d0).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #264      +/-   ##
============================================
+ Coverage     98.54%   98.57%   +0.02%     
- Complexity      360      366       +6     
============================================
  Files            47       48       +1     
  Lines           964      983      +19     
============================================
+ Hits            950      969      +19     
  Misses           14       14              

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[Copilot]

Pull request overview

Adds a new queue provider implementation that returns queues from a preconfigured in-memory map, enabling simple composition and testing scenarios without factories/containers.

Changes:

• Introduced PredefinedQueueProvider implementing QueueProviderInterface using a name→instance map with enum name normalization.
• Added unit tests covering get(), has(), not-found behavior, invalid config, and enum-backed names.
• Updated CompositeQueueProviderTest to use PredefinedQueueProvider for simpler provider composition.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
src/Provider/PredefinedQueueProvider.php	New provider that returns predefined QueueInterface instances by normalized name.
tests/Unit/Provider/PredefinedQueueProviderTest.php	New test suite validating provider behavior and error cases.
tests/Unit/Provider/CompositeQueueProviderTest.php	Refactors composite provider test to compose predefined providers instead of adapter-factory providers.

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