Remove the last persistence helpers only account merge used (#376)

ddiff --git a/docs/games.md b/docs/games.md
iindex 62bac84..18d373b 100644
---- a/docs/games.md
++++ b/docs/games.md
@@@ -66,7 +66,7 @@ reads the game's board on OpenVibe.Play (below): 25 entries per page (`rank`, `n
  bearer or `X-Guest-Token` used by the ticket endpoint. Public reads have per-address limits.
  The read-only `/leaderboard.html` page shows Salvage Rush's best round scores and Scraplandia's summed haul points, switchable in the page, all time or this week (from Monday 00:00 UTC), 25 a page.
  Network account exports include results, best scores, unlocks and hauls; account erasure removes them.
--Guest character adoption and Network subject merges move progression (including hauls) to the surviving subject.
++Guest character adoption moves progression (including hauls) to the surviving subject.
  
  ## Creator worlds
  
@@@ -105,7 +105,7 @@ five (`GAMES_CREATOR_WORLDS_PER_PERSON`). A world is made at `/worlds`, built in
    `/worlds?join=<token>`, the token kept only as its hash, good for 7 days until stopped or replaced; migration 0015).
    Editors save the world's map and scripts and try its draft; the owner alone publishes, renames, deletes and runs the
    team (`GET /api/worlds/:id/team`, `DELETE /api/worlds/:id/team/:subject`, an editor leaves with `…/team/me`).
--  Two saves at once are still told apart by the map's revision (409). Team places follow account export, merge and
++  Two saves at once are still told apart by the map's revision (409). Team places follow account export and
    deletion. `/api/worlds/mine` lists them as `team`.
  - **Official examples:** two published worlds show what the editor can do — **Beacon Hill** (sculpted terrain, a
    beacon, a path, lights and three zones) and **The Workshop** (a walk-in shed, benches, props, resource nodes and
@@@ -124,7 +124,7 @@ five (`GAMES_CREATOR_WORLDS_PER_PERSON`). A world is made at `/worlds`, built in
    script adds it to the world's scripts, renamed `…-2` when the name is taken, within the world's four. A use counts
    once per person (`POST /api/assets/:id/use`; never the creator's own). The creator renames or deletes an asset
    (worlds keep their copy); staff take one down (`asset.hidden`, `asset.restored`, `asset.deleted` as
--  `games.moderation.action`). Assets and uses follow account export, merge and deletion. Uploaded models, textures
++  `games.moderation.action`). Assets and uses follow account export and deletion. Uploaded models, textures
    and sounds wait for the Pics safety pipeline, and paid assets for the owner's prices.
  - **View (2D):** the owner shows a world in first person (`3d`, the default) or **top-down** (`top`, migration 0017;
    `PATCH /api/worlds/:id {view}`, `/worlds` → **Switch to top-down**). Top-down looks straight down on the player with an
ddiff --git a/packages/persistence/src/index.ts b/packages/persistence/src/index.ts
iindex a6fc469..5c7894a 100644
---- a/packages/persistence/src/index.ts
++++ b/packages/persistence/src/index.ts
@@@ -17,7 +17,6 @@ export {
    removeWorldPlaces,
    exportCreatorWorlds,
    eraseCreatorWorlds,
--  moveCreatorWorlds,
    type CreatorWorld,
    type CreatorWorldStatus,
    type CreatorWorldStore,
@@@ -27,7 +26,6 @@ export {
    createCreatorAssetStore,
    exportCreatorAssets,
    eraseCreatorAssets,
--  moveCreatorAssets,
    type CreatorAsset,
    type CreatorAssetKind,
    type CreatorAssetStatus,
ddiff --git a/packages/persistence/src/pg/creatorAssets.ts b/packages/persistence/src/pg/creatorAssets.ts
iindex 6b3faec..f957963 100644
---- a/packages/persistence/src/pg/creatorAssets.ts
++++ b/packages/persistence/src/pg/creatorAssets.ts
@@@ -194,35 +194,3 @@ export async function eraseCreatorAssets(db: Db, subjects: readonly string[]): P
    await db.exec(sql`DELETE FROM creator_asset_uses WHERE subject IN (${idList(subjects)})`)
    return db.exec(sql`DELETE FROM creator_assets WHERE owner_subject IN (${idList(subjects)})`)
  }
--
--/**
-- * Account merge (ADR-029): the folded-in account's assets belong to the survivor, and so do its uses (one per asset;
-- * none on the survivor's own assets, which never count their creator).
-- */
--export async function moveCreatorAssets(db: Db, from: string, into: string): Promise<number> {
--  if (from === into) return 0
--  const moved = await db.exec(
--    sql`UPDATE creator_assets SET owner_subject = ${into} WHERE owner_subject = ${from}`,
--  )
--  const touched = (
--    await db.many<{ asset_id: string }>(
--      sql`SELECT asset_id FROM creator_asset_uses WHERE subject = ${from}`,
--    )
--  ).map((r) => r.asset_id)
--  await db.exec(sql`
--    UPDATE creator_asset_uses u SET subject = ${into}
--    WHERE u.subject = ${from}
--      AND NOT EXISTS (SELECT 1 FROM creator_asset_uses o WHERE o.asset_id = u.asset_id AND o.subject = ${into})
--  `)
--  await db.exec(sql`DELETE FROM creator_asset_uses WHERE subject = ${from}`)
--  await db.exec(sql`
--    DELETE FROM creator_asset_uses u USING creator_assets a
--    WHERE u.asset_id = a.id AND u.subject = a.owner_subject
--  `)
--  // Two uses that became one, or a use of what is now one's own, no longer count.
--  await db.exec(sql`
--    UPDATE creator_assets a SET uses = (SELECT count(*)::int FROM creator_asset_uses u WHERE u.asset_id = a.id)
--    WHERE a.owner_subject = ${into}${touched.length ? sql` OR a.id IN (${idList(touched)})` : sql``}
--  `)
--  return moved
--}
ddiff --git a/packages/persistence/src/pg/creatorWorlds.ts b/packages/persistence/src/pg/creatorWorlds.ts
iindex e2af467..f79eb83 100644
---- a/packages/persistence/src/pg/creatorWorlds.ts
++++ b/packages/persistence/src/pg/creatorWorlds.ts
@@@ -384,25 +384,3 @@ export async function eraseCreatorWorlds(db: Db, subjects: readonly string[]): P
    await removeWorldPlaces(db, ids)
    return ids.length
  }
--
--/**
-- * Account merge (ADR-029): the folded-in account's worlds belong to the survivor, and so do its team places (one per
-- * world; none on a world the survivor now owns).
-- */
--export async function moveCreatorWorlds(db: Db, from: string, into: string): Promise<number> {
--  if (from === into) return 0
--  const moved = await db.exec(
--    sql`UPDATE creator_worlds SET owner_subject = ${into} WHERE owner_subject = ${from}`,
--  )
--  await db.exec(sql`
--    UPDATE creator_world_members m SET subject = ${into}
--    WHERE m.subject = ${from}
--      AND NOT EXISTS (SELECT 1 FROM creator_world_members o WHERE o.world_id = m.world_id AND o.subject = ${into})
--  `)
--  await db.exec(sql`DELETE FROM creator_world_members WHERE subject = ${from}`)
--  await db.exec(sql`
--    DELETE FROM creator_world_members m USING creator_worlds w
--    WHERE m.world_id = w.id AND m.subject = w.owner_subject
--  `)
--  return moved
--}