Files
TREK/client/tests/unit
jubnl 4188f67ab7 fix(sync): remap temp ids, prevent id collisions, surface failed mutations (#1175)
Closes three offline BLOCKERs from the PWA audit:

- B1: offline edits/deletes of an offline-created entity were lost. The
  negative temp id was baked into the PUT/DELETE url and never rewritten
  after the CREATE returned a real id, so dependents 404'd and were dropped.
  Dependents now carry a {id} placeholder + tempEntityId; flush builds a
  tempId->realId map and durably rewrites still-queued dependents on CREATE
  success (survives flush boundaries / reloads).
- B2: tempId = -(Date.now()) collided within a millisecond, overwriting an
  optimistic row. Replaced with a monotonic nextTempId() minter.
- B3: any 4xx marked the mutation failed with no rollback and no signal, and
  the badge ignored failed rows. Terminal failures now roll back the phantom
  optimistic CREATE; 401/408/425/429 are treated as retryable; failedCount()
  is surfaced in OfflineBanner (red pill) and OfflineTab.
2026-06-15 07:51:52 +02:00
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