* test(#3730): a legacy Quick Tasks table must be migratable to canonical
* fix(#3730): quick-tasks-migrate — canonical-schema repair, auto-run on first quick
* fix(#3730): review fixes — usage parity, contiguous table span, collision-safe bucket, template-width delimiter
Emitted-Drift-Ack-Growth: fast.md — #3730 runs quick-tasks-migrate before the first append (auto-migration on first quick run)
Emitted-Drift-Ack-Growth: quick.md — #3730 replaces the match-any-format note with the migration instruction
* chore(#3730): backfill changeset pr number
* fix(#3730): scope the quick-batch row-48 guard to branches touching quick-batch
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Co-authored-by: sim <sim@local>