feat(enterprise-site): add WordPress support and scheduled auto-publish to sites

Add WordPress as an enterprise-site CMS type alongside pbootcms, and let
schedule tasks auto-publish generated articles to enterprise sites.

- WordPress connection/publisher service and tests; register wordpress
  media platform and relax cms_type CHECK constraint
- New publish_enterprise_site_targets JSONB column on schedule_tasks with
  array type constraint; thread targets through scheduler dispatch,
  prompt/KOL generation, and worker
- Admin UI: enterprise-site targets in generate/schedule/publish flows,
  KOL package form, MediaView, and i18n strings

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

packages/shared-types/src/index.ts

@@ -1296,7 +1296,7 @@ export interface PublishRecordListResponse {
   history_total: number
 }
 
-export type EnterpriseSiteCmsType = 'pbootcms' | 'wordpress' | 'dedecms' | 'phpcms'
+export type EnterpriseSiteCmsType = 'pbootcms' | 'wordpress'
 export type EnterpriseSiteStatus = 'draft' | 'connected' | 'error' | 'disabled'
 
 export interface EnterpriseSiteLatestPublishRecord {
@@ -1399,6 +1399,12 @@ export interface EnterpriseSitePublishResponse {
   published_at?: string | null
 }
 
+export interface ScheduleEnterpriseSiteTarget {
+  site_id: number
+  category_id: string
+  publish_type?: 'publish' | 'draft' | string
+}
+
 export interface PublisherLocalPlatformState {
   platform_id: string
   connected: boolean
@@ -2149,6 +2155,7 @@ export interface ScheduleTask {
   generation_input: Record<string, JsonValue>
   auto_publish: boolean
   publish_account_ids: string[]
+  publish_enterprise_site_targets: ScheduleEnterpriseSiteTarget[]
   auto_publish_platforms: string[]
   cover_asset_url: string | null
   cover_image_asset_id: number | null
@@ -2184,6 +2191,7 @@ export interface ScheduleTaskRequest {
   generation_input?: Record<string, JsonValue>
   auto_publish?: boolean
   publish_account_ids?: string[]
+  publish_enterprise_site_targets?: ScheduleEnterpriseSiteTarget[]
   cover_asset_url?: string | null
   cover_image_asset_id?: number | null
   enable_web_search?: boolean