refactor(finance)!: 事实维度与接口字段统一改名 channel

- migration 114 将 sales_daily_facts.fulfillment_mode 重命名为 channel
- DTO/查询参数/前端类型从 fulfillmentMode 统一为 channel
- 成本中心类型 FulfillmentMode 更名为 FulfillmentChannel，并补齐卡券/待分类/归档取值
- 销售事实响应分组改为 byChannel

apps/frontend/src/utils/admin-display.ts

@@ -219,7 +219,7 @@ export function resolveOrderPlatformBadge(row: { platform?: string; provider?: s
 }
 
 export function resolveOrderFulfillmentMode(row: {
-  fulfillmentMode?:
+  channel?:
     | 'work_order'
     | 'affiliate_dash'
     | 'third_party_voucher'
@@ -229,7 +229,7 @@ export function resolveOrderFulfillmentMode(row: {
     | 'archived'
     | 'mixed'
 }): { label: string; color: string } {
-  switch (row.fulfillmentMode) {
+  switch (row.channel) {
     case 'affiliate_dash':
       return { label: '⚡ 自动发货', color: 'blue' }
     case 'work_order':