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Independent Codex review of #268 found two Blockers the fork missed + two Mediums: - Blocker: replace PUTs returned the handler's item snapshot but re-queried the root for the ETag separately, so a racing writer could pair stale items with a newer ETag (silent overwrite). All four controllers now reload root-then-items (version-first, fail-safe) and 404 when the root is gone between commit and reload — matching the Block reference. Fixes the Blocker + the Medium '200 without ETag' case together. - Blocker: PlaylistsScreen loaded items+root via Promise.all (concurrent), pairing a stale name with the current ETag; now sequential (items-with-meta first, then root). - Medium: SchedulesScreen loadItems now marks not-loaded/loading up front so canEdit is false through the 412 conflict reload (no stale-draft edits lost). Controller unit-test mocks updated to stub the new reload query. Full suite green (ErsatzTV.Tests 1334, web 667, check:api no drift).