cleanup: remove old ssd/promptfree (renamed to emotionfree)

cleanup: remove old ssad/promptfree (renamed to emotionfree)

cleanup: remove old desrd/promptfree (renamed to emotionfree)

cleanup: remove old crad/promptfree (renamed to emotionfree)

Rename: prompt-free -> emotion-free (more accurate baseline name)

Restructure: domain-agnostic naming; 8 variant subfolders (4 EmoDistill + 4 prompt-free) for CRAD/DESRD/SSAD/SSD

Add EmoDebt (AAMAS 2026) to research thread; fix EvoEmo label (arxiv only)

Link model to all 4 arxiv papers via metadata tags

Polish model card: add workflow figure, real arxiv ID, drop EMNLP (under review)

Initial model card (checkpoint coming soon)

initial commit