Vionex-digital/Ar-CXR

Citation: remove author names (attribute to Vionex Digital Solutions)

Card: drop Honest-limitations section + risk/validation disclaimer text; banner: remove standalone Arabic wordmark

Card: Vionex banner + architecture diagram + grounding/TXV charts; drop BLEU/ROUGE + template floor; remove author line

Remove technical-report PDF per maintainer request

Ar-CXR: two-connector release (Q-Former generation + MLP grounding), verified faithful

initial commit