Switch DI container from illuminate/container to entropy/entropy

[TomasVotruba]

Swaps the dependency-injection container from illuminate/container to entropy/entropy.

RectorConfig now extends Entropy\Container\Container and bridges the former Illuminate surface, so configs and rules keep working unchanged.

What changed

• tagged() / findByContract() return a plain 0-indexed list. entropy keys results by class-string; variadic spreads such as new NodeTraverser(...$visitors) need a positional list, not name-keyed args.
• when()->needs()->giveTagged() is a no-op shim. entropy injects tagged collections from the constructor docblock instead:

  /**
   * @param AttributeDecoratorInterface[] $decorators
   */
  public function __construct(array $decorators) { /* ... */ }

  Collection params must therefore be typed array (not iterable) and carry no default value.
• Deferred afterResolving draining. Callbacks are drained only when the outermost make() unwinds, so aggregate cycles (a service and the collection it belongs to, e.g. the type mappers and PHPStanStaticTypeMapper) resolve without looping.
• WeakMap-tracked "already injected" set. spl_object_id is recycled after an object is freed; keying by the object itself stops a rebuilt rule from wrongly skipping setter injection ($currentFileProvider must not be accessed before initialization).
• ServiceCreationFailedException names the failing service and keeps the root cause as previous, preserving the previous container's error output.

Performance (build + resolve, 79 services, warmup + 5 iterations)

utils/bench-container.php measures the same boot both ways:

	peak memory delta	build + resolve
illuminate/container	~7.2 MB	~15 ms
entropy/entropy	~1.0 MB	~7-13 ms

Peak memory during boot drops by roughly 6 MB; wall time is comparable to faster (varies with load).

Checks

• composer complete-check (ECS, PHPStan level 8, PHPUnit) green
• composer rector green
• full tests/ (690) and rules-tests/ (4588) green

[TomasVotruba]

Seems ready, lets give it a go 👍