Remove sdk_version to force dependency install from requirements.txt

Bump Gradio/Pydantic versions to fix schema parsing TypeError

Revert Gradio 6.x config: move theme/css back to Blocks for 5.x compat

Fix NameError: define ui before launch

Fix Spaces crash: use pysqlite3 for ChromaDB and remove hardcoded port

Clean deployment to HuggingFace Space