feat(wechat): add Intent Transaction Layer with unified task schema

Introduce Draft → Confirm → Commit flow for WeChat schedule intents behind
feature flags, plus h5_tasks dual-write/read aggregation and rollout scripts
so reminders and automations get explicit user confirmation before persisting.

Co-authored-by: Cursor <cursoragent@cursor.com>

server/portal-domain-services-bootstrap.mjs

@@ -26,6 +26,9 @@ import {
 } from '../plaza-tasks.mjs';
 import { createScheduleService } from '../schedule-service.mjs';
 import { createScheduledTaskService } from '../scheduled-task-service.mjs';
+import { createIntentDraftService } from '../intent-draft-service.mjs';
+import { createTaskUnifiedService } from '../task-unified-service.mjs';
+import { attachUnifiedTaskSync } from '../task-unified-sync.mjs';
 import { createFeedbackService } from '../user-feedback.mjs';
 import { PUBLISH_KEY_UUID } from '../user-publish.mjs';
 import { initSchema } from '../db.mjs';
@@ -49,6 +52,8 @@ export async function bootstrapPortalDomainServices({
   loadMindSpaceConfigCachedFn = loadMindSpaceConfigCached,
   createScheduleServiceFn = createScheduleService,
   createScheduledTaskServiceFn = createScheduledTaskService,
+  createIntentDraftServiceFn = createIntentDraftService,
+  createTaskUnifiedServiceFn = createTaskUnifiedService,
   createPageDataServiceFn = createPageDataService,
   createPageDataPublicServiceFn =
     createPageDataPublicService,
@@ -116,6 +121,24 @@ export async function bootstrapPortalDomainServices({
     defaultTimezone:
       env.H5_DEFAULT_TIMEZONE || 'Asia/Shanghai',
   });
+  const intentDraftService =
+    env.H5_INTENT_TRANSACTION_ENABLED === '1'
+      ? createIntentDraftServiceFn(pool)
+      : null;
+  const taskUnifiedService =
+    env.H5_UNIFIED_TASKS_ENABLED === '1'
+      ? createTaskUnifiedServiceFn(pool)
+      : null;
+  if (taskUnifiedService) {
+    attachUnifiedTaskSync({
+      scheduleService,
+      scheduledTaskService,
+      taskUnifiedService,
+      pool,
+      env,
+      logger,
+    });
+  }
   const pageDataService = createPageDataServiceFn({
     getUserAuth,
     getPool: () => pool,
@@ -286,6 +309,8 @@ export async function bootstrapPortalDomainServices({
     mindSpaceAnalyticsConfig: resolvedAnalyticsConfig,
     scheduleService,
     scheduledTaskService,
+    intentDraftService,
+    taskUnifiedService,
     pageDataService,
     pageDataPublicService,
     feedbackService,

server/portal-integration-services-bootstrap.mjs

@@ -29,6 +29,8 @@ export async function bootstrapPortalIntegrationServices({
   tkmindProxy,
   scheduleService,
   scheduledTaskService = null,
+  intentDraftService = null,
+  taskUnifiedService = null,
   sessionSnapshotService = null,
   wechatScheduleLlmConfigService,
   wechatIntentRouter = null,
@@ -163,6 +165,14 @@ export async function bootstrapPortalIntegrationServices({
         env.H5_SCHEDULE_ENABLED === '1'
           ? scheduledTaskService
           : null,
+      intentDraftService:
+        env.H5_INTENT_TRANSACTION_ENABLED === '1'
+          ? intentDraftService
+          : null,
+      taskUnifiedService:
+        env.H5_UNIFIED_TASKS_ENABLED === '1'
+          ? taskUnifiedService
+          : null,
       wechatScheduleLlmConfigService,
       llmProviderService,
       chatIntentRouter,