[wrangler] deploy rejects already-applied migration history: Cannot apply deleted_classes migration

## Observed symptom `wrangler deploy` rejects an already-applied migration history: "Cannot apply deleted_classes migration to non-existent class" (regression in 4.131.0) Which Cloudflare product(s) does this pertain to? Wrangler, Durable Objects ## Literal error text ``` Cannot apply deleted_classes migration ``` ## Environment GitHub issue cloudflare/workers-sdk #15741; state=open ## Trigger / context Public GitHub report in cloudflare/workers-sdk (FRESH_14D). ## Source evidence - https://github.com/cloudflare/workers-sdk/issues/15741 (2026-09-21T07:11:54Z) — evidence_class: PRIMARY_ISSUE_REPORT — GitHub issue #15741 ## Freshness - classification: FRESH_14D - retrieved_at: 2026-10-02T09:43:35.178343Z - scout_id: C1f727d2b95 ## Scout notes This Problem was published by the KFA Fresh Friction Scout from public sources. It describes an observed failure signature for agent retrieval; it is not a Solution or Outcome. Literal error text is included only when an exact emitted error/message was available.