prod-down: mig 140 fails with `cannot drop table deadline_rules because
other objects depend on it (2BP01)`. The dependent object is the
deadline_search materialized view (mig 077) — curie's brief listed FK
re-pointing but missed the matview.
Fix: drop the matview before DROP TABLE deadline_rules, recreate it at
the end of mig 140 against deadline_rules_unified (same column shape).
All 11 indexes restored. REFRESH at end so search keeps working.
Single-TX atomicity preserved — if anything past step 6a fails, the
whole drop-and-recreate rolls back. The pre_140 snapshot from step 1
remains as the forensic backstop.
Refs t-paliad-305 / m/paliad#93 Slice B.4.
mAi
6b970da774