feat(M01-C): 建立MySQL异步任务基础

backend/tests/migration-contract.test.mjs

@@ -12,6 +12,9 @@ const downSql = read('database/migrations/2026061601_m01b_core_schema.down.sql')
 const verifySql = read('database/migrations/2026061601_m01b_core_schema.verify.sql');
 const seedSql = read('database/seeds/2026061601_m01b_minimal_seed.sql');
 const legacyFixtureSql = read('database/fixtures/2026061801_m01b_legacy_schema.sql');
+const asyncUpSql = read('database/migrations/2026061802_m01c_async_tasks.up.sql');
+const asyncDownSql = read('database/migrations/2026061802_m01c_async_tasks.down.sql');
+const asyncVerifySql = read('database/migrations/2026061802_m01c_async_tasks.verify.sql');
 
 const coreTables = [
   'qipai_schema_migrations',
@@ -73,4 +76,14 @@ assert.match(legacyFixtureSql, /DECIMAL\(10,\s*2\)/);
 assert.match(legacyFixtureSql, /LEGACY-SANITIZED-001/);
 assert.doesNotMatch(legacyFixtureSql, /(?:https?:\/\/|@|password|secret|token)/i);
 
-console.log('PASS: M01-B migration contract is present.');
+for (const table of ['qipai_outbox_events', 'qipai_async_tasks']) {
+  assert.match(asyncUpSql, new RegExp(`CREATE TABLE IF NOT EXISTS ${table}\\b`));
+  assert.match(asyncDownSql, new RegExp(`DROP TABLE IF EXISTS ${table}\\b`));
+  assert.match(asyncVerifySql, new RegExp(`'${table}'`));
+}
+assert.match(asyncUpSql, /UNIQUE KEY uq_qipai_outbox_events_idempotency/);
+assert.match(asyncUpSql, /UNIQUE KEY uq_qipai_async_tasks_idempotency/);
+assert.match(asyncUpSql, /lease_expires_at DATETIME\(3\)/);
+assert.match(asyncUpSql, /COMPENSATION_REQUIRED|status VARCHAR/);
+
+console.log('PASS: M01-B/M01-C migration contracts are present.');

backend/tests/migration-runner.test.mjs

@@ -12,7 +12,8 @@ assert.deepEqual(
 
 const plan = await loadMigrationPlan('up');
 assert.equal(plan.direction, 'up');
-assert.match(plan.file, /2026061601_m01b_core_schema\.up\.sql$/);
+assert.match(plan.file, /2026061601_m01b_core_schema\.up\.sql/);
+assert.match(plan.file, /2026061802_m01c_async_tasks\.up\.sql$/);
 assert.match(plan.checksum, /^[a-f0-9]{64}$/);
 assert.ok(plan.statements.length >= 11);
 

backend/tests/mysql-migration-roundtrip.test.mjs

@@ -5,6 +5,7 @@ import { fileURLToPath } from 'node:url';
 import { loadConfig } from '../dist/config.js';
 import { closeMySqlPool, createMySqlPool } from '../dist/db/mysql.js';
 import { LegacyReadRepository } from '../dist/db/legacy-read-repository.js';
+import { TaskRepository } from '../dist/tasks/task-repository.js';
 import {
   executeMigrationPlan,
   loadMigrationPlan,
@@ -12,11 +13,13 @@ import {
 } from '../dist/db/migration-runner.js';
 
 const expectedTables = [
+  'qipai_async_tasks',
   'qipai_audit_logs',
   'qipai_devices',
   'qipai_legacy_table_mappings',
   'qipai_members',
   'qipai_orders',
+  'qipai_outbox_events',
   'qipai_payments',
   'qipai_rooms',
   'qipai_schema_migrations',
@@ -38,12 +41,13 @@ async function readCoreTables(pool) {
   return rows.map((row) => row.tableName);
 }
 
-async function readMigrationVersion(pool) {
+async function readMigrationVersions(pool) {
   const [rows] = await pool.query(
     `SELECT version, name
      FROM qipai_schema_migrations
-     WHERE version = ?`,
-    ['2026061601']
+     WHERE version IN (?, ?)
+     ORDER BY version`,
+    ['2026061601', '2026061802']
   );
   return rows;
 }
@@ -79,11 +83,48 @@ async function assertLegacyCompatibility(pool) {
   assert.equal(orders[0].refundAmountCents, null);
 }
 
+async function assertTaskDurability(pool) {
+  await pool.query(
+    `INSERT INTO qipai_tenants (code, name)
+     VALUES ('M01C-TEST', 'M01C sanitized test tenant')`
+  );
+  const firstRepository = new TaskRepository(pool);
+  const firstEnqueue = await firstRepository.enqueue({
+    tenantId: '1',
+    taskType: 'order.advance',
+    idempotencyKey: 'order:501:paid',
+    payload: { orderId: '501' },
+    maxAttempts: 3
+  });
+  const duplicateEnqueue = await firstRepository.enqueue({
+    tenantId: '1',
+    taskType: 'order.advance',
+    idempotencyKey: 'order:501:paid',
+    payload: { orderId: '501' },
+    maxAttempts: 3
+  });
+  assert.equal(firstEnqueue.created, true);
+  assert.equal(duplicateEnqueue.created, false);
+  assert.equal(duplicateEnqueue.id, firstEnqueue.id);
+
+  const restartedRepository = new TaskRepository(pool);
+  const claimed = await restartedRepository.claimNext('worker-after-restart', 30_000);
+  assert.equal(claimed?.id, firstEnqueue.id);
+  assert.equal(claimed?.attempts, 1);
+  assert.equal(await restartedRepository.complete(claimed.id, 'worker-after-restart'), true);
+
+  const [rows] = await pool.query(
+    `SELECT status, attempts FROM qipai_async_tasks WHERE id = ?`,
+    [firstEnqueue.id]
+  );
+  assert.deepEqual(rows, [{ status: 'SUCCEEDED', attempts: 1 }]);
+}
+
 const config = loadConfig();
 assert.equal(config.mysql.passwordConfigured, true, 'Live migration test requires a temporary password.');
 assert.match(
   config.mysql.database,
-  /^qipai_m01b_test_[a-z0-9_]+$/,
+  /^qipai_m01c_test_[a-z0-9_]+$/,
   'Live migration test refuses to use a non-temporary database.'
 );
 
@@ -102,25 +143,26 @@ try {
   await executeMigrationPlan(pool, plans.up);
   await executeMigrationPlan(pool, plans.verify);
   assert.deepEqual(await readCoreTables(pool), expectedTables);
-  assert.deepEqual(await readMigrationVersion(pool), [{
-    version: '2026061601',
-    name: 'm01b_core_schema'
-  }]);
+  assert.deepEqual(await readMigrationVersions(pool), [
+    { version: '2026061601', name: 'm01b_core_schema' },
+    { version: '2026061802', name: 'm01c_async_tasks' }
+  ]);
+  await assertTaskDurability(pool);
   await assertLegacyCompatibility(pool);
-  console.log('PASS: first up and verify completed.');
+  console.log('PASS: first up, verify and durable task restart check completed.');
 
   await executeMigrationPlan(pool, plans.down);
   assert.deepEqual(await readCoreTables(pool), []);
   await assertLegacyCompatibility(pool);
-  console.log('PASS: down removed all M01-B core tables.');
+  console.log('PASS: down removed all M01-B/M01-C tables.');
 
   await executeMigrationPlan(pool, plans.up);
   await executeMigrationPlan(pool, plans.verify);
   assert.deepEqual(await readCoreTables(pool), expectedTables);
-  assert.deepEqual(await readMigrationVersion(pool), [{
-    version: '2026061601',
-    name: 'm01b_core_schema'
-  }]);
+  assert.deepEqual(await readMigrationVersions(pool), [
+    { version: '2026061601', name: 'm01b_core_schema' },
+    { version: '2026061802', name: 'm01c_async_tasks' }
+  ]);
   await assertLegacyCompatibility(pool);
   console.log('PASS: second up and verify restored the schema.');
 

backend/tests/task-repository.test.mjs

@@ -0,0 +1,87 @@
+import assert from 'node:assert/strict';
+import { OutboxRepository } from '../dist/tasks/outbox-repository.js';
+import { retryDelayMs, taskTypes } from '../dist/tasks/task-repository.js';
+import { TaskWorker } from '../dist/tasks/worker.js';
+
+assert.deepEqual(taskTypes, [
+  'notification.dispatch',
+  'order.advance',
+  'device.command',
+  'refund.query',
+  'statistics.aggregate',
+  'outbox.publish'
+]);
+assert.equal(retryDelayMs(1), 1000);
+assert.equal(retryDelayMs(4), 8000);
+assert.equal(retryDelayMs(99), 60 * 60 * 1000);
+
+const outboxCalls = [];
+const outbox = new OutboxRepository({
+  async execute(sql, params) {
+    outboxCalls.push([sql, params]);
+    return [{ insertId: 7, affectedRows: 1 }, []];
+  }
+});
+assert.deepEqual(
+  await outbox.append({
+    tenantId: '1',
+    aggregateType: 'order',
+    aggregateId: '88',
+    eventType: 'order.paid',
+    idempotencyKey: 'order:88:paid',
+    payload: { orderId: '88' }
+  }),
+  { id: '7', created: true }
+);
+assert.match(outboxCalls[0][0], /INSERT IGNORE INTO qipai_outbox_events/);
+
+const calls = [];
+const task = {
+  id: '42',
+  tenantId: '1',
+  taskType: 'notification.dispatch',
+  idempotencyKey: 'notice:42',
+  payload: { channel: 'test' },
+  status: 'RUNNING',
+  attempts: 1,
+  maxAttempts: 3
+};
+const repository = {
+  async claimNext() {
+    calls.push('claim');
+    return task;
+  },
+  async complete(id) {
+    calls.push(`complete:${id}`);
+    return true;
+  },
+  async fail() {
+    calls.push('fail');
+  }
+};
+const worker = new TaskWorker({
+  repository,
+  handlers: new Map([['notification.dispatch', async (claimed) => {
+    calls.push(`handle:${claimed.id}`);
+  }]]),
+  workerId: 'test-worker'
+});
+assert.equal(await worker.runOnce(), true);
+assert.deepEqual(calls, ['claim', 'handle:42', 'complete:42']);
+
+const failedCalls = [];
+const failedWorker = new TaskWorker({
+  repository: {
+    async claimNext() { return task; },
+    async complete() { return true; },
+    async fail(claimed, workerId, error) {
+      failedCalls.push([claimed.id, workerId, error.message]);
+    }
+  },
+  handlers: new Map(),
+  workerId: 'test-worker'
+});
+assert.equal(await failedWorker.runOnce(), true);
+assert.deepEqual(failedCalls, [['42', 'test-worker', 'No handler registered for task type notification.dispatch.']]);
+
+console.log('PASS: M01-C task retry and worker contracts are present.');