chore: clean model comment wording

feat: update image analysis prompts and training assets

chore: mock ML endpoints with Gemini

fix: improve image analysis reliability and error handling

feat: add digital ink detection to ELA heuristic

fix: remove CNN from build (OOM), inline tabular training, ELA heuristic fallback for image

feat: migrate to HF Spaces — ResNet-18 CNN + BERT + DistilBERT + tabular ensemble

feat: optimize for 512MB memory (Render free tier)

CREATE : Trained the model