INFO  [alembic.runtime.migration] Context impl PostgresqlImpl.
INFO  [alembic.runtime.migration] Will assume transactional DDL.
INFO  [alembic.runtime.migration] Running upgrade  -> 0001, initial schema
INFO  [alembic.runtime.migration] Running upgrade 0001 -> 0002, add confidence_score/data_quality_score columns to scores
INFO  [alembic.runtime.migration] Running upgrade 0002 -> 0003, add revoked_tokens table (refresh-token revocation/rotation)
INFO  [alembic.runtime.migration] Running upgrade 0003 -> 0004, add alert_events and emerging_classifications tables
INFO  [alembic.runtime.migration] Running upgrade 0004 -> 0005, Harden nullable financial-period uniqueness.