Refatcor policies management

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

pkg/coredata/migrations/20250425T012700Z.sql

@@ -0,0 +1,22 @@
+CREATE TYPE policy_status_new AS ENUM ('DRAFT', 'PUBLISHED');
+
+ALTER TABLE policy_versions ADD COLUMN temp_status TEXT;
+
+UPDATE policy_versions SET temp_status = 
+  CASE WHEN status::TEXT = 'ACTIVE' THEN 'PUBLISHED' 
+       ELSE status::TEXT 
+  END;
+
+ALTER TABLE policy_versions DROP COLUMN status;
+
+ALTER TABLE policy_versions ADD COLUMN status policy_status_new;
+
+UPDATE policy_versions SET status = temp_status::policy_status_new;
+
+ALTER TABLE policy_versions DROP COLUMN temp_status;
+
+DROP TYPE policy_status;
+ALTER TYPE policy_status_new RENAME TO policy_status;
+
+CREATE UNIQUE INDEX policy_one_draft_version_idx ON policy_versions (policy_id, status) 
+WHERE status = 'DRAFT';