~anthropic/claude-sonnet-latest → B (6:4)

Side B fixes a real user-facing bug (hrefs leaking full storage URLs instead of display paths) and substantially strengthens test coverage to actually validate ranking correctness across all pairs, which is meaningful lasting value. Side A adds a small, correct feature (skipping pinned posts) with a focused unit test, which is solid but narrower in scope than B's combined bugfix + test rigor improvement.