openai/gpt-chat-latest → A (4:1)

Side A introduces an entire URL canonicalization subsystem: a graph-based traversal engine, parser, graph builder with validation, generic fallback behavior, Reddit/YouTube canonicalization, breadcrumbs, and extensive unit/integration tests. Side B is a valuable correctness fix that changes the Rank Centrality implementation from weight-sum normalization to degree-based d_max and adds regressions for the oscillation bug, but its scope is a targeted algorithm correction rather than the addition of a substantial new project capability.