Apply conservative Rector cleanup (#129)

* Apply conservative Rector cleanup

* Run PHPCS cleanup

* Restore test setup and typed property guards

* Reformat folder fixture setup

* Restore readable compact formatting

* Fix cleanup branch regressions

* Fix cleanup branch regressions

Shim polish: drop misleading deprecation tags, harden defensive paths…

…, modernize PHP 8 idioms (#125)

A handful of small correctness / hygiene fixes left over from the
previous correctness PR:

- RequestHandlerComponent::accepts() / prefers() carried `deprecated
  4.4.0` doc tags copied verbatim from the upstream core they were
  extracted from. The whole purpose of this shim is to re-introduce
  that surface for consumers who have not yet migrated to
  ContentTypeNegotiation / Controller::getViewClasses(), so flagging
  them deprecated *inside the shim* is misleading. Drop the tags.

- DateTimeWidget meridian conversion read the AM/PM character from
  $dateArray (the post-padded copy) but the conditional checked
  $value (the raw input). The decoupling between the conditional source
  and the value source was brittle and has been a historical bug
  source. Use $value['meridian'] for both.

- Table::record() caught RecordNotFoundException with an empty
  `catch (X \$e)` body, which PSR2R / phpcs flags. Switch to PHP 8
  capture-omit `catch (RecordNotFoundException) { return null; }`.

- Table::delete() weakened the parent's typed `array \$options` to bare
  `\$options` and then re-checked is_array() at runtime — under
  declare(strict_types=1) the runtime check is dead because callers
  already type-hint array. Restore the parent's `array \$options` hint
  and drop the dead check.

- LegacyModelAwareTrait::loadModel() read `\$this->_modelFactories`
  unconditionally. That property only existed on ModelAwareTrait in
  4.x; the trait was removed in 5.x, so consumers that don't redeclare
  the property hit an undeclared-dynamic-property warning under PHP 8.2+.
  Guard with property_exists() so the lookup falls back to
  FactoryLocator cleanly.

- Folder::isAbsolute() / isWindowsPath() / isRegisteredStreamWrapper()
  were returning int|false from preg_match() directly into a `: bool`
  signature, papered over by `||` short-circuiting. Cast (bool)
  explicitly. Also swap `substr(\$path, 0, 2) === '\\\\\\\\'` for
  str_starts_with() (PHP 8.0+).

- Deprecations.php: add declare(strict_types=1) to match the rest of
  src/, and validate the `Shim.deprecationType` value before passing it
  to trigger_error() — only E_USER_NOTICE / WARNING / DEPRECATED /
  ERROR are accepted by trigger_error, and a misconfigured app passing
  e.g. E_NOTICE would crash the shim's own deprecation pathway with a
  ValueError on PHP 8+.

- TestSuite\\TestTrait: drop the `&` reference on the \$object parameter
  of invokeMethod() and invokeProperty(). Objects are passed by
  handle in PHP, the reference does nothing. EntityAnnotatorTest
  overrode invokeMethod() with the same signature and is updated to
  match.

Fix SetTrait magic setOrFail off-by-one in argument index (#123)

The magic set{PropertyName}OrFail($value) helpers in SetTrait::__call
and GetSetTrait::__call read the first user argument from
$arguments[1] instead of $arguments[0]. With the documented one-arg
signature this raises an "Undefined array key 1" notice and then
forwards null to setOrFail(), which throws "$prop is null" — so
$entity->setFooBarOrFail('value') always fails on the success path.

The bug was masked by EntitySetTest::testSetOrFailMagicInvalid, which
called setFooBarOrFail('foo_bar', null) with two args; the second null
happened to match the bug and made the exception assertion succeed.

Read $arguments[0] in both traits, switch the invalid-path test to the
documented single-arg signature, and add a positive-path magic-set test
plus a missing-argument regression test.

Forward table entity generic (#121)

* Forward table entity generic

* Use git repo for stacked Cake branch

* Drop composer stacked-dependency hack

Fix null array offset deprecation (#119)

Check if index is not null before using it as array offset.
Using null as an array offset is deprecated.

Fix tests

Fix PHPStan

Fix up join shim.

Fixes.

Fix up timezone handling.