T-959 rescoped (objects descoped, title updated); T-1097 (ops-surface fill, D-233) split out as a new child; T-1057 gates T-959 (blocker edge); recovered T-1057's lost description + triage dispositions. README index regen reflects Q-049 resolution (PR #173). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>