v1.8: FastAdmin chathub-addon — register/plan/payment/member-center + 5 channel bindings

- New fastadmin/chathub/ (11 files, 204K): user-facing FastAdmin ThinkPHP 5 addon
- _markOrderPaid() now calls _provisionAsync() on empty embed_code (closes 'paid but no code' gap)
- New reprovision() action — user-initiated resource rebuild
- payReturn() smart redirect: 3 branches (just_paid / provisioning / pending / fallback)
- status badge updated with 'provisioning' state (blue)
- _initialize() whitelist expanded: reprovision (user) + payNotify/payReturn (public webhook)
- 5 chathub_* tables (tenant/log/order/channel_account/gateway_log) + MIGRATIONS.md

Bugfixes during E2E:
- payNotify HTTP 500: tenant.status ENUM missing 'provisioning' value (DBA migration)
- payNotify HTTP 500: chathub_log.status='received' (not in ENUM) — changed to 'success'
- TP5 method signature: function reprovision(\$ids) does not read query string — use \$this->request->param('ids')

fastadmin/chathub/MIGRATIONS.md

@@ -0,0 +1,69 @@
+# Chathub FastAdmin Addon — Migrations
+
+This file documents schema migrations applied to the chathub tables between releases. Always back up your database before applying migrations.
+
+## v1.6 — channel_type + status enum extension
+
+**Date:** 2026-06-05
+**Reason:** Support 5 platform integrations (Amazon/京东/淘宝/拼多多/抖音) and add explicit "provisioning" state in tenant lifecycle.
+
+### `fa_chathub_tenant`
+
+```sql
+ALTER TABLE `fa_chathub_tenant`
+  ADD COLUMN `user_id` INT(11) UNSIGNED DEFAULT NULL COMMENT 'fa_user.id (创建者)' AFTER `id`,
+  ADD COLUMN `team_id` INT(11) DEFAULT NULL COMMENT 'Chatwoot Team ID' AFTER `inbox_token`,
+  ADD COLUMN `max_agents` INT(11) NOT NULL DEFAULT 3 COMMENT '最大坐席数' AFTER `agent_name`,
+  ADD COLUMN `expire_at` DATETIME DEFAULT NULL COMMENT '到期时间' AFTER `provisioned_at`,
+  ADD KEY `idx_user_id` (`user_id`),
+  MODIFY COLUMN `channel_type` ENUM('web_widget','api','amazon','jd','taobao','pdd','tiktok') NOT NULL DEFAULT 'web_widget' COMMENT '通道类型',
+  MODIFY COLUMN `status` ENUM('pending','provisioning','active','suspended','disabled') NOT NULL DEFAULT 'pending' COMMENT '状态';
+```
+
+### `fa_chathub_log`
+
+```sql
+ALTER TABLE `fa_chathub_log`
+  MODIFY COLUMN `tenant_id` INT(11) UNSIGNED NOT NULL DEFAULT 0 COMMENT '租户ID (0=系统级)';
+```
+
+### New tables
+
+```sql
+-- v1.8 支付订单
+CREATE TABLE IF NOT EXISTS `fa_chathub_order` (
+  ... (see install.sql for full schema)
+);
+
+-- v1.6 渠道账号 (5 平台)
+CREATE TABLE IF NOT EXISTS `fa_chathub_channel_account` (
+  ... (see install.sql for full schema)
+);
+
+-- v1.6 Gateway 调用日志
+CREATE TABLE IF NOT EXISTS `fa_chathub_gateway_log` (
+  ... (see install.sql for full schema)
+);
+```
+
+## Rollback
+
+```sql
+-- v1.6 rollback
+ALTER TABLE `fa_chathub_tenant`
+  DROP COLUMN `user_id`,
+  DROP COLUMN `team_id`,
+  DROP COLUMN `max_agents`,
+  DROP COLUMN `expire_at`,
+  DROP KEY `idx_user_id`,
+  MODIFY COLUMN `channel_type` ENUM('web_widget','api') NOT NULL DEFAULT 'web_widget' COMMENT '通道类型',
+  MODIFY COLUMN `status` ENUM('pending','active','suspended','disabled') NOT NULL DEFAULT 'pending' COMMENT '状态';
+DROP TABLE IF EXISTS `fa_chathub_order`;
+DROP TABLE IF EXISTS `fa_chathub_channel_account`;
+DROP TABLE IF EXISTS `fa_chathub_gateway_log`;
+```
+
+## Notes
+
+- The `provisioning` status was added because the previous 4-state machine (pending→active→suspended→disabled) had no slot for "paid but Chatwoot resources not yet provisioned". After payNotify, the tenant enters `provisioning` briefly while the chathub-provision service creates Inbox/Team/Agent, then transitions to `active`. If provisioning fails, status reverts to `pending` and the user can click "重新开通" to retry.
+- The `channel_type` enum now has 7 values. The original 2 (web_widget/api) are still functional; the 5 new ones (amazon/jd/taobao/pdd/tiktok) are routed through `gateway/` Python library on the WS agent side.