fix: Replace stale enterprise_group references with power_group in later migrations

Migration 20260223185108 (remove_invalid_codes) does CREATE OR REPLACE VIEW
statistical_unit_def with hardcoded 'enterprise_group' enum casts and
enterprise_group_id column references. Since the seed migration renamed these
to power_group/power_group_id, this migration would fail at apply time.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: jhf

migrations/20260203134134_remove_duplicate_valid_range_gist_indices.up.sql

@@ -16,7 +16,7 @@ DROP INDEX IF EXISTS public.ix_legal_unit_valid_range;
 DROP INDEX IF EXISTS public.ix_establishment_valid_range;
 DROP INDEX IF EXISTS public.ix_activity_valid_range;
 DROP INDEX IF EXISTS public.ix_contact_valid_range;
-DROP INDEX IF EXISTS public.ix_enterprise_group_valid_range;
+-- power_group (formerly enterprise_group) is non-temporal, no index to drop
 DROP INDEX IF EXISTS public.ix_location_valid_range;
 DROP INDEX IF EXISTS public.ix_person_for_unit_valid_range;
 DROP INDEX IF EXISTS public.ix_stat_for_unit_valid_range;

migrations/20260223185108_remove_invalid_codes_from_derive_pipeline.down.sql

@@ -1215,13 +1215,13 @@ FROM external_ident ei
 JOIN external_ident_type eit ON ei.type_id = eit.id
 WHERE ei.enterprise_id IS NOT NULL
 UNION ALL
-SELECT 'enterprise_group'::statistical_unit_type AS unit_type,
-ei.enterprise_group_id AS unit_id,
+SELECT 'power_group'::statistical_unit_type AS unit_type,
+ei.power_group_id AS unit_id,
 eit.code AS type_code,
 COALESCE(ei.ident, ei.idents::text::character varying) AS ident
 FROM external_ident ei
 JOIN external_ident_type eit ON ei.type_id = eit.id
-WHERE ei.enterprise_group_id IS NOT NULL) all_idents
+WHERE ei.power_group_id IS NOT NULL) all_idents
 GROUP BY all_idents.unit_type, all_idents.unit_id
 ), tag_paths_agg AS (
 SELECT all_tags.unit_type,
@@ -1248,12 +1248,12 @@ FROM tag_for_unit tfu
 JOIN tag t ON tfu.tag_id = t.id
 WHERE tfu.enterprise_id IS NOT NULL
 UNION ALL
-SELECT 'enterprise_group'::statistical_unit_type AS unit_type,
-tfu.enterprise_group_id AS unit_id,
+SELECT 'power_group'::statistical_unit_type AS unit_type,
+tfu.power_group_id AS unit_id,
 t.path
 FROM tag_for_unit tfu
 JOIN tag t ON tfu.tag_id = t.id
-WHERE tfu.enterprise_group_id IS NOT NULL) all_tags
+WHERE tfu.power_group_id IS NOT NULL) all_tags
 GROUP BY all_tags.unit_type, all_tags.unit_id
 ), data AS (
 SELECT timeline_establishment.unit_type,

migrations/20260223185108_remove_invalid_codes_from_derive_pipeline.up.sql

@@ -1208,13 +1208,13 @@ FROM external_ident ei
 JOIN external_ident_type eit ON ei.type_id = eit.id
 WHERE ei.enterprise_id IS NOT NULL
 UNION ALL
-SELECT 'enterprise_group'::statistical_unit_type AS unit_type,
-ei.enterprise_group_id AS unit_id,
+SELECT 'power_group'::statistical_unit_type AS unit_type,
+ei.power_group_id AS unit_id,
 eit.code AS type_code,
 COALESCE(ei.ident, ei.idents::text::character varying) AS ident
 FROM external_ident ei
 JOIN external_ident_type eit ON ei.type_id = eit.id
-WHERE ei.enterprise_group_id IS NOT NULL) all_idents
+WHERE ei.power_group_id IS NOT NULL) all_idents
 GROUP BY all_idents.unit_type, all_idents.unit_id
 ), tag_paths_agg AS (
 SELECT all_tags.unit_type,
@@ -1241,12 +1241,12 @@ FROM tag_for_unit tfu
 JOIN tag t ON tfu.tag_id = t.id
 WHERE tfu.enterprise_id IS NOT NULL
 UNION ALL
-SELECT 'enterprise_group'::statistical_unit_type AS unit_type,
-tfu.enterprise_group_id AS unit_id,
+SELECT 'power_group'::statistical_unit_type AS unit_type,
+tfu.power_group_id AS unit_id,
 t.path
 FROM tag_for_unit tfu
 JOIN tag t ON tfu.tag_id = t.id
-WHERE tfu.enterprise_group_id IS NOT NULL) all_tags
+WHERE tfu.power_group_id IS NOT NULL) all_tags
 GROUP BY all_tags.unit_type, all_tags.unit_id
 ), data AS (
 SELECT timeline_establishment.unit_type,