fix(cost): 快照新单优先、费用口径与回填健壮性

- 成本快照拆热/冷双通道：新单走热通道分钟级入账，历史项冷通道轮询重算
- 通用成本只允许平台费/支付费自动全量，售后损失/其他必须按商品配置
- 比例费用按扣除已确认退款后的净收入计算
- 已入账 actual 快照不再被后续预估覆盖
- 受影响日期超过 31 天时按整段重算，不再静默丢弃；关账跳过会提示
- 通用费用解析不到时计数告警；已入队的成本缺失不再重复 upsert
- 快照替换与写入放入同一事务，避免事实任务读到空窗

apps/backend/src/services/scheduler/finance-pipeline-jobs.ts

@@ -52,9 +52,11 @@ export async function runChannelAssignJob(job: JsonObject = {}) {
     status: 'ok',
     message:
       `渠道判定：扫描 ${result.scanned}，已定 ${result.assigned}，` +
-      `冲突 ${result.conflicted}，仍待定 ${result.stillPending}，回填 ${refreshed} 天`,
+      `冲突 ${result.conflicted}，仍待定 ${result.stillPending}，回填 ${refreshed.days} 天` +
+      (refreshed.skippedClosed > 0 ? `（${refreshed.skippedClosed} 天已关账跳过）` : ''),
     ...result,
-    refreshedDays: refreshed,
+    refreshedDays: refreshed.days,
+    skippedClosedDays: refreshed.skippedClosed,
   }
 }
 
@@ -64,19 +66,49 @@ export async function runChannelAssignJob(job: JsonObject = {}) {
  * 事实任务只回看最近几天；补配价格、迟到分类这类变更必须按受影响日期重算，
  * 否则旧日期的毛利会一直停在缺失成本/未分类。
  */
-async function refreshFactsForDates(dates: string[]): Promise<number> {
-  const unique = [...new Set(dates.filter(Boolean))].sort().slice(0, 31)
+async function refreshFactsForDates(
+  dates: string[],
+): Promise<{ days: number; skippedClosed: number }> {
+  const unique = [...new Set(dates.filter(Boolean))].sort()
+  if (unique.length === 0) return { days: 0, skippedClosed: 0 }
+
+  // 日期过多时按整段重算，避免截断导致部分日期永远不更新。
+  if (unique.length > 31) {
+    const dateFrom = unique[0]!
+    const dateTo = unique[unique.length - 1]!
+    try {
+      const facts = await rebuildChannelSalesDailyFacts({ dateFrom, dateTo })
+      await syncFinanceLedgerFromFacts({ dateFrom, dateTo })
+      if (facts.skippedClosedPeriods.length > 0) {
+        console.warn('[finance-pipeline] 部分日期已关账，事实未回填', {
+          dateFrom,
+          dateTo,
+          skipped: facts.skippedClosedPeriods,
+        })
+      }
+      return { days: unique.length, skippedClosed: facts.skippedClosedPeriods.length }
+    } catch {
+      return { days: 0, skippedClosed: 0 }
+    }
+  }
+
   let done = 0
+  let skippedClosed = 0
   for (const date of unique) {
     try {
-      await rebuildChannelSalesDailyFacts({ dateFrom: date, dateTo: date })
+      const facts = await rebuildChannelSalesDailyFacts({ dateFrom: date, dateTo: date })
+      if (facts.skippedClosedPeriods.length > 0) {
+        skippedClosed += facts.skippedClosedPeriods.length
+        console.warn('[finance-pipeline] 日期已关账，事实未回填', { date })
+        continue
+      }
       await syncFinanceLedgerFromFacts({ dateFrom: date, dateTo: date })
       done += 1
     } catch {
       // 单日失败不影响管道本身，下一轮或人工重跑会再处理。
     }
   }
-  return done
+  return { days: done, skippedClosed }
 }
 
 export async function runCarrierDispatchJob(job: JsonObject = {}) {
@@ -368,14 +400,18 @@ export async function runCostSnapshotJob(job: JsonObject = {}) {
   })
 
   await touchWatermark('cost_snapshot', { lastItemId: result.nextCursor })
+  await touchWatermark('cost_snapshot_hot', { lastItemId: result.hotCursor })
   const refreshed = await refreshFactsForDates(result.affectedDates)
   return {
     status: 'ok',
     message:
       `成本快照：扫描 ${result.scanned}，生成 ${result.created}，` +
-      `替换 ${result.superseded}，缺失 ${result.missing}，回填 ${refreshed} 天`,
+      `替换 ${result.superseded}，缺失 ${result.missing}，回填 ${refreshed.days} 天` +
+      (result.genericMissing > 0 ? `，通用费用未解析 ${result.genericMissing} 项` : '') +
+      (refreshed.skippedClosed > 0 ? `（${refreshed.skippedClosed} 天已关账跳过）` : ''),
     ...result,
-    refreshedDays: refreshed,
+    refreshedDays: refreshed.days,
+    skippedClosedDays: refreshed.skippedClosed,
   }
 }