Update model card: add zen/zenlm tags, fix branding

fix: remove upstream model references from README

Fix base model: Qwen/Qwen2.5-3B-Instruct → Qwen3-4B-Instruct

Update model files

Upload README.md with huggingface_hub

Upload mlx/model.safetensors.index.json with huggingface_hub

Upload mlx/chat_template.jinja with huggingface_hub

Upload mlx/tokenizer.json with huggingface_hub

Upload mlx/config.json with huggingface_hub

Upload mlx/tokenizer_config.json with huggingface_hub

Upload mlx/model.safetensors with huggingface_hub

Upload README.md with huggingface_hub

Upload gguf/zen-eco-4b-instruct-f16.gguf with huggingface_hub

Upload folder using huggingface_hub

Fix quantization config for LM Studio compatibility

Fix: Use Qwen3 not Qwen2 - all Zen models based on Qwen3 or newer

Add complete architecture and quantization details

Fix metadata for LM Studio display

Upload zen-eco with MLX formats

Update zen-eco-4b with improved training

Add model configuration

Update Zen-Eco with complete structure

Add config.json and Modelfile for GGUF/Ollama support

Upload zen-eco-4b-instruct model with LoRA adapters

initial commit