Introduce Instantiator types (Autowire and Factory)

[alganet]

Extract Factory (always-new instances) and Autowire (type-hint-based DI resolution) from Instantiator, replacing the mode string with polymorphism. Refactor Instantiator to lazily initialize reflection and constructor params, accept initial params in the constructor, and remove the embedded class-name parsing that now lives in Container's createInstantiator().

Container gains createInstantiator() with new/autowire modifier support, Autowire integration via offsetSet(), class_exists() check in has(), ReflectionException wrapping in getItem(), Closure-aware lazyLoad(), and set()/loadArray() handling for Instantiator/Closure values.

Add AutowireTest, FactoryTest, NotFoundExceptionTest, and extend ContainerTest and InstantiatorTest to cover magic methods, deferred config, loadString/loadFile error paths, and edge cases (102 tests).

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.68%. Comparing base (2a8e237) to head (cc5e21b).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@              Coverage Diff              @@
##             master      #71       +/-   ##
=============================================
+ Coverage     86.78%   99.68%   +12.89%     
- Complexity      132      153       +21     
=============================================
  Files             2        4        +2     
  Lines           280      317       +37     
=============================================
+ Hits            243      316       +73     
+ Misses           37        1       -36     

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[Copilot]

Pull request overview

This PR refactors instantiation behavior in the DI/config container by replacing the previous mode-string approach with polymorphic instantiators (Factory and Autowire), and extends Container to support these new instantiation modifiers and behaviors.

Changes:

• Introduces Factory (always-new instances) and Autowire (constructor type-hint resolution via container) as Instantiator subclasses.
• Refactors Instantiator for lazy reflection/constructor-param initialization and constructor-provided initial params.
• Updates Container to support instantiator modifiers (new, autowire), closure-aware lazy loading, improved has() behavior, and expanded test coverage.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/Instantiator.php	Lazifies reflection/constructor handling; removes mode parsing; supports initial params.
src/Factory.php	Adds always-new instantiator behavior via subclassing.
src/Autowire.php	Adds container-aware constructor autowiring logic.
src/Container.php	Adds instantiator creation with modifiers, autowire integration, closure-aware lazy loading, and updated has()/getItem() behavior.
composer.json	Bumps branch alias to 3.0-dev.
tests/AutowireTest.php	Adds coverage for autowiring behavior and container integration.
tests/FactoryTest.php	Adds coverage ensuring factories always create new instances.
tests/NotFoundExceptionTest.php	Adds PSR-11 interface/Throwable coverage for NotFoundException.
tests/InstantiatorTest.php	Adds coverage for new Instantiator behaviors (initial params, getters, edge cases).
tests/ContainerTest.php	Extends coverage for magic methods, deferred config, modifier parsing, closures, and error paths.

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