openai/gpt-chat-latest → A (4:1)

Side A fixes a substantive canonical-path bug by unifying ontology root handling (`https://slug.social/~` vs `.../~/`), normalizing storage keys before lookups, introducing shared path conversion helpers, and updating rendering logic so root pages and sibling rankings behave correctly. It also adds extensive unit, integration, and browser regression tests covering these cases, whereas Side B mainly changes the ranking workflow from contributor-level to commit-level with corresponding prompt, evidence, UI, and test updates but does not address a core correctness issue in the project itself.