feat(web-admin): add plan draft save UI and drafting follow-status filters

Rename pending tab to 待安排/草稿, default-select drafting, and add 暂存 with saveMode.

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

web-admin/src/utils/pl-display.ts

@@ -366,7 +366,7 @@ export const PL_PLAN_TYPE_TABS: { label: string; name: PlPlanTypeTab }[] = [
 ]
 
 export const PL_PLAN_LIST_TABS: { label: string; name: PlPlanListTab }[] = [
-  { label: '待安排', name: 'pending_arrange' },
+  { label: '待安排/草稿', name: 'pending_arrange' }, // name 保留；语义含 drafting
   ...PL_PLAN_TYPE_TABS
 ]
 
@@ -384,7 +384,8 @@ export function plPlanListTabToFilters(tab: PlPlanListTab): {
   followStatus?: string
 } {
   if (tab === 'pending_arrange') {
-    return { planType: '', followStatus: 'pending_arrange' }
+    // followStatus 由列表 searchForm 控制（默认 pending_arrange + drafting）
+    return { planType: '' }
   }
   return { planType: plPlanTypeTabToFilter(tab) }
 }
@@ -419,6 +420,7 @@ export function plPlanTypeFilterToTab(planType?: string): PlPlanTypeTab {
 
 /** 运输计划跟进状态选项（筛选） */
 export const PL_PLAN_FOLLOW_STATUS_OPTIONS = [
+  { label: '草稿中', value: 'drafting' },
   { label: '等通知', value: 'wait_notice' },
   { label: '待安排', value: 'pending_arrange' },
   { label: '已安排', value: 'arranged' },
@@ -433,6 +435,7 @@ export const PL_PLAN_DEFAULT_FOLLOW_STATUSES = PL_PLAN_FOLLOW_STATUS_OPTIONS.fil
 
 export function getPlPlanFollowStatusTagType(status?: string) {
   const map: Record<string, string> = {
+    drafting: 'info',
     wait_notice: 'warning',
     pending_arrange: 'danger',
     arranged: 'success',
@@ -447,6 +450,7 @@ export function getPlPlanFollowStatusTagType(status?: string) {
 
 export function getPlPlanFollowStatusLabel(status?: string) {
   const map: Record<string, string> = {
+    drafting: '草稿中',
     wait_notice: '等通知',
     pending_arrange: '待安排',
     arranged: '已安排',