feat(db): 0013 tasks tables and 0014 agent_run_event; tasks uses db migrations

tasks_run_meta/tasks_fact/tasks_op_ledger move into packages/db (if not exists, old
tasks_migration tables dropped); packages/tasks/migrations and migrateTasksTables
removed, tests migrate their schema with @umt/db. agent_run_event(run_id, seq, type,
at, payload) with (run_id, seq) primary key; types regenerated, db-sync covers it.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

packages/tasks/test/helpers.ts

@@ -1,6 +1,7 @@
+import { migrateToLatest } from "@umt/db";
 import { Kysely, PostgresDialect, sql } from "kysely";
 import pg from "pg";
-import { migrateTasksTables, OpenWorkflowEngine, silentSink, type TaskRegistry } from "../src/index.ts";
+import { OpenWorkflowEngine, silentSink, type TaskRegistry } from "../src/index.ts";
 
 export const PG_URL =
   process.env.TASKS_TEST_DATABASE_URL ?? process.env.DATABASE_URL ?? "postgres://umt:umt@localhost:55433/umt";
@@ -32,11 +33,17 @@ export function testSchemas(suffix: string) {
   return { biz, ow: `${biz}_ow` };
 }
 
+/** search_path 带上 public:db 迁移用到的 pg_trgm 操作符类装在 public */
 export function connectDb(schema: string): TestDb {
-  const pool = new pg.Pool({ connectionString: PG_URL, max: 6, options: `-c search_path=${schema}` });
+  const pool = new pg.Pool({ connectionString: PG_URL, max: 6, options: `-c search_path=${schema},public` });
   return new Kysely({ dialect: new PostgresDialect({ pool }) });
 }
 
+/** 用 @umt/db 的统一迁移在测试 schema 里建全部业务表(含 tasks_* 与 outbox_event) */
+export async function migrateBizSchema(db: TestDb, schema: string) {
+  await migrateToLatest(db, { migrationTableSchema: schema });
+}
+
 export async function resetSchemas(schemas: { biz: string; ow: string }) {
   const admin = connectDb("public");
   try {
@@ -58,21 +65,6 @@ export async function dropSchemas(schemas: { biz: string; ow: string }) {
   }
 }
 
-/** 与 packages/db 0001_init + 0002_foundation 的 outbox_event 同构 */
-export async function createOutboxTable(db: TestDb) {
-  await sql`CREATE TABLE outbox_event (
-    id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
-    at timestamptz NOT NULL DEFAULT now(),
-    type text NOT NULL,
-    payload jsonb NOT NULL DEFAULT '{}'::jsonb,
-    published_at timestamptz,
-    idempotency_key text UNIQUE,
-    status text NOT NULL DEFAULT 'pending' CHECK (status IN ('pending', 'dispatched', 'failed', 'dead')),
-    attempts integer NOT NULL DEFAULT 0,
-    next_attempt_at timestamptz NOT NULL DEFAULT now(),
-    last_error jsonb)`.execute(db);
-}
-
 export async function createSideEffectTable(db: TestDb) {
   await sql`CREATE TABLE IF NOT EXISTS side_effect (
     id bigserial PRIMARY KEY, run_id text NOT NULL, step text NOT NULL, note text, pid int,
@@ -85,8 +77,8 @@ export async function sideEffects(db: TestDb, runId: string) {
   return r.rows;
 }
 
+/** 只连接引擎;业务表由调用方先 migrateBizSchema 建好 */
 export async function setupEngine(db: TestDb, schemas: { ow: string }, registry: TaskRegistry) {
-  await migrateTasksTables(db);
   return OpenWorkflowEngine.connect({
     databaseUrl: PG_URL,
     db,