B4 - ADR - error responder, application, emitter, provider, kernel

[niden]

• Phalcon\ADR\ErrorResponder - maps a thrown exception to a response through the responder chain (exact->ancestor status match, generic client message, full log + correlation ref)
• Phalcon\Contracts\ADR\Application + Phalcon\ADR\Application - routes, applies route attributes, dispatches the action, fires application:beforeHandle/afterHandle, falls back to the error responder
• Phalcon\Contracts\ADR\Emitter\Emitter + Phalcon\ADR\Emitter\SapiEmitter - sends the response via SAPI (guards headers-sent); adds HeadersAlreadySent / OutputAlreadySent
• Phalcon\ADR\Container\AdrProvider - registers the ADR seams (request, response, logger, responder, dispatcher, router, emitter); used instead of Phalcon\Container\Provider\Web
• Phalcon\Contracts\ADR\Kernel\Kernel + Phalcon\ADR\Kernel\AbstractHttpKernel + HttpKernel - boots the container, handles the request, emits the response, returns an exit code
• Phalcon\ADR\Middleware\RequestIdMiddleware - missing use for AttributeBag
• Phalcon\ADR\Payload\Payload - contract alias renamed to PayloadContract

Refs #17341