1e0747324d
Serialize the entire db:reset chain (DROP → migrate → seed) inside one withSeedAdvisoryLock callback so a concurrent same-PRNG seeder cannot interleave and collide on invoices_pkey. Pool sized max:6 (1 reserved for the lock + work headroom) to avoid the connection-starvation deadlock the CTO caught. Verified with three end-to-end live db:reset runs against a throwaway Postgres. cc @cpfarhood