Function mergeDreamIntoState

bin/gstack-gbrain-sync.ts:1451–1457

* Persist the dream stage result with read-modify-write semantics. * * Dream runs AFTER the sync lock releases, so a sibling worktree may have * written newer state in the meantime. Overwriting the whole file with our * pre-dream snapshot + dream result would clobber that sibling's sync. Instead

(dream: StageResult)

 * merge is what prevents the clobber.)
 */
function mergeDreamIntoState(dream: StageResult): void {
  const fresh = loadSyncState();
  const others = (fresh.last_stages || []).filter((s) => s.name !== "dream");
  fresh.last_stages = [...others, dream];
  fresh.last_sync = new Date().toISOString();
  saveSyncState(fresh);
}

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