Revert model names back to electrical-embeddinggemma-ir prefix

Update README.md

Add arxiv paper URL to citation section for paper detection

Fix arXiv paper tag format for HuggingFace paper panel

Add EmbeddingGemma arXiv paper reference (2509.20354)

Rename prefix from embeddinggemma-300m to gemma-300m

Rename finetune_16bit to fp16

Update model names to new prefix embeddinggemma-300m-electrical-electronics-ir

Add poster image to model card

Add base_model and datasets metadata for model tree and dataset panel

Update model card with structured sections and full evaluation results

Hotfix: removed invalid max_seq_length kwarg from standard SentenceTransformer init

Added comprehensive Semantic Search Demo utilizing native SentenceTransformers

Add new SentenceTransformer model

initial commit