Inject routineLookup, increase coverage to 100%, remove dead code

[alganet]

• Make NamespaceLookup a constructor dependency injected from Router into all routes and handlers, removing duplicate creation and the setRoutineLookup()/withRoutineNamespace() post-construction API
• Add 16 targeted tests reaching 100% class/method coverage; remove two unreachable code paths (ControllerRoute::getTargetMethod HEAD fallback, Router::process empty-dispatch guard)
• Remove unused CallbackList methods (hasKey, filterKeysContain, filterKeysNotContain, executeCallback) and their tests
• Merge Responder::finalize() dual null-check blocks into one
• Make compareOcurrences private and fix typo -> compareOccurrences
• Collapse Router::__call() callable branch into single call

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.80%. Comparing base (64e698e) to head (e7baf18).

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #182      +/-   ##
============================================
+ Coverage     96.35%   98.80%   +2.44%     
+ Complexity      398      394       -4     
============================================
  Files            31       31              
  Lines          1016     1004      -12     
============================================
+ Hits            979      992      +13     
+ Misses           37       12      -25     

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[Copilot]

Pull request overview

This PR refactors routing/routine resolution to inject a shared NamespaceLookup into routes/handlers at construction time, removes several dead/unreachable code paths, and adds targeted tests to reach full class/method coverage.

Changes:

• Inject NamespaceLookup from Router into all AbstractRoute subclasses and handlers; remove the post-construction routine-lookup API and introduce setBasePath().
• Remove dead/unreachable code and simplify logic (e.g., HEAD target-method fallback logic, Router::process guard, Router::__call callable branch, Responder::finalize null-check structure).
• Remove unused CallbackList methods and associated tests; add new tests/stubs to cover edge cases and reach 100% coverage.

Reviewed changes

Copilot reviewed 27 out of 27 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/Routes/AbstractRoute.php	Makes routine lookup a constructor dependency; adds setBasePath; tightens mutability via private(set) properties.
src/Routes/Callback.php	Updates constructor to accept injected routine lookup; tightens arguments mutability.
src/Routes/ClassName.php	Updates constructor to accept injected routine lookup; tightens promoted properties.
src/Routes/Factory.php	Updates constructor to accept injected routine lookup; tightens promoted properties.
src/Routes/Instance.php	Updates constructor to accept injected routine lookup; tightens class mutability.
src/Routes/StaticValue.php	Updates constructor to accept injected routine lookup.
src/Routes/ControllerRoute.php	Simplifies HEAD target method selection logic.
src/Router.php	Injects/propagates routine lookup via constructors; removes withRoutineNamespace; simplifies process and __call; makes compare helper private and fixes typo.
src/Routines/CallbackList.php	Removes unused helper methods and related import.
src/Responder.php	Consolidates status override logic inside the existing draft-response block.
src/Handlers/StatusHandler.php	Passes routine lookup into handler route construction.
src/Handlers/ExceptionHandler.php	Encapsulates exception state and adds helper methods for matching/capture/reset; passes routine lookup.
src/Handlers/ErrorHandler.php	Encapsulates error collection state; passes routine lookup.
src/DispatchContext.php	Uses new handler APIs (addError/hasErrors/clear*, matches/capture/clearException) instead of direct property writes.
tests/Routines/CallbackListTest.php	Removes tests for deleted CallbackList APIs; adds constructor validation test.
tests/Routines/AcceptTest.php	Adds coverage for skipping empty Accept segments and by() returning null.
tests/RoutinePipelineTest.php	Updates route creation to pass injected routine lookup.
tests/Routes/StaticValueTest.php	Updates route creation to pass injected routine lookup.
tests/Routes/InstanceTest.php	Updates route creation to pass injected routine lookup; adds non-routable instance assertion.
tests/Routes/FactoryTest.php	Updates route creation to pass injected routine lookup; adds non-routable factory return assertion.
tests/Routes/ClassNameTest.php	Updates route creation to pass injected routine lookup.
tests/DispatchEngineTest.php	Updates route creation to pass injected routine lookup.
tests/DispatchContextTest.php	Updates mocked route constructor args to include injected routine lookup; adds coverage for unknown container ID and empty string conversion.
tests/RouterTest.php	Adds new coverage for file-extension negotiation, array-path binding, catchall sorting, PSR-15 process delegation, explicit HEAD handling, exception-handler filtering, and magic __call controllers.
tests/Stubs/MagicMethodController.php	Adds stub controller using __call for dispatch testing without reflection.
tests/Stubs/HeadWithExplicitHead.php	Adds stub controller with explicit head() method.
tests/Stubs/FunkyCallbackList.php	Removes stub method that depended on deleted CallbackList::executeCallback().

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