Update app.py

Restore required Hugging Face README front matter

Rename README to thesis title and remove visible metadata block

Make README ASCII-safe to avoid mojibake on web renderers

Fix README encoding (garbled UTF-8 Sinhala/Unicode characters)

Fix word_candidates NameError in mBart mode; remove IndoNLP dataset and mappings.py; update README

Fix Streamlit secrets import compatibility

Fix HF Spaces emoji to supported glyph

Fix HF Spaces emoji

Add HF Spaces README and Streamlit config

SinCode v3 — seq2seq pipeline, evaluation scripts, IndoNLP benchmark data

SinCode v3 — ByT5 seq2seq + XLM-RoBERTa MLM reranker