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A’s auth fail-closed votes, mock-OAuth gate, Secure cookies, and open-redirect hardening are real security wins, but they are more localized hardening/UI (nav alias) and dep pinning than B’s ledger semantics change.\"}","refusal":null,"reasoning":"The user wants me to compare two commits and decide which contributed more lasting value. I need to return only a JSON object.\n{\"winner\": \"B\", \"ratio\": \"2:3\", \"explanation\": \"Side B's core contribution is a correctness fix for feed catch-up: it anchors implicit since-cuts to durable ingest order indices instead of wall-clock timestamps, correctly handling same-millisecond posts and clock rollbacks while preserving permission-aware filtering for private rooms (see rpc_feed, test_feed_uses_delegate_ingest_position_when_multi_user_timestamps_collide, and test_feed_multi_user_private_room_visibility_and_revoked_anchor_access).","reasoning_details":[{"type":"reasoning.summary","summary":"The user wants me to compare two commits and decide which contributed more lasting value. 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