Fix thinking tokens in chat + format specifier error

Fast-fail Ollama when unavailable, cache probe result

Fix: use collection C4 (CART is not in C1)

Fix NameError: use_real -> has_catalog

Eagerly load embedding model to fix dim mismatch (384 vs 768)

Remove pre-built FAISS index, build at startup instead

Pin faiss-cpu>=1.13 to match index format from build environment

Rename ShopRLVE to EcomRLVE in UI headings

Add transformers fallback for LLM verbalization (Qwen3-0.6B)

Remove show_copy_button from Chatbot (removed in Gradio 6)

Remove type='messages' from Chatbot (default in Gradio 6)

Move css/theme to launch() for Gradio 6 compatibility

Fix: use head= param to inject CSS (Gradio 6 compat)

Fix Gradio 6: move CSS to external file, use css_paths

Upgrade to Gradio 6

Bump Gradio to 5.23+ to fix json_schema_to_python_type bool bug

Disable SSR, fix gr.update() for Gradio 5.x compatibility

Bump sdk_version to 5.12.0 to match requirements.txt

Pin gradio>=5.12 and huggingface_hub<1.0 to fix HfFolder import

Pin Python 3.12 to fix audioop/pydub incompatibility with 3.13

Add pre-built FAISS index (87MB) for instant startup

Bundle shop_rlve source package for self-contained HF Space

Cart environment demo with real 29.6K product catalog

initial commit