feat(ql3): establish 3.0 incubation baseline

back/migrations/postgresql/index.ts

@@ -0,0 +1,21 @@
+import {
+  POSTGRESQL_MAIN_MIGRATION_STREAM_ID,
+  type PostgresMigrationContext,
+} from '../adapters/postgresMigrationStreamStore';
+import type { MigrationStreamDefinition } from '../core/migrationStream';
+import { pg0001SchemaCapabilityMigration } from './pg-0001-schema-capability';
+import { pg0002RunCoreMigration } from './pg-0002-run-core';
+import { pg0003RunRetryPolicyMigration } from './pg-0003-run-retry-policy';
+
+export const postgresqlMainMigrationStream: MigrationStreamDefinition<PostgresMigrationContext> =
+  Object.freeze({
+    id: POSTGRESQL_MAIN_MIGRATION_STREAM_ID,
+    dialect: 'postgresql',
+    migrationIdScheme: 'postgres-prefixed',
+    checksumScheme: 'sha256',
+    migrations: Object.freeze([
+      pg0001SchemaCapabilityMigration,
+      pg0002RunCoreMigration,
+      pg0003RunRetryPolicyMigration,
+    ]),
+  });