openai/gpt-chat-latest → B (3:2)

Side B performs a broad architectural refactor by moving canonical path normalization and URL construction into shared `types::paths` newtypes (`GardenItemUrl`, `ForumThreadUrl`, `TildeOntologyPath`) and updates API/RPC types and call sites to use them instead of ad hoc string helpers. Side A adds useful user-facing voting functionality (typed form substitution, vote navigation, slider support, and a new vote route), but much of the visible patch is UI/CSS and dependency additions, whereas B centralizes path identity and reduces duplication across the codebase with a more durable design improvement.