feat: dedup expected data by handover_no before export submit

- store.get_existing_handover_nos: query PG expected_record.handover_no

- inject dedup skip before submitting export in zto/yunda/anneng/shunxin

- shunxin reads RTS handover_no from waybill-list view (method 1)

- force-redownload switch threaded via task_spec -> dispatch -> impl

- schema: add idx_expected_handover index

Co-Authored-By: Claude <noreply@anthropic.com>

inbound_verify/sites/zto.py

@@ -109,18 +109,18 @@ def zto_smart_menu_click(page, menu_path):
             page.wait_for_timeout(1000)
 
 
-def zto_expected_download(page):
+def zto_expected_download(page, force=False):
     """中通：应到货物数据下载（内部含异常兜底重试，路由层无感）。"""
 
     return with_retry(
         "中通",
         "应到",
-        lambda: zto_expected_download_impl(page),
+        lambda: zto_expected_download_impl(page, force=force),
         lambda: zto_reset(page),
     )
 
 
-def zto_expected_download_impl(page):
+def zto_expected_download_impl(page, force=False):
     """中通：应到货物数据下载（单次执行，无重试；供自动化测试探测原始结果用）。"""
     print("\n▶ 开始执行【中通 - 应到货物数据下载】任务...")
 
@@ -240,6 +240,19 @@ def zto_expected_download_impl(page):
         count = main_rows.count()
         print(f">> 共发现 {count} 个交接单需要导出。")
 
+        # 【去重】加载本站已落库交接单号；force=True 或查询失败时 existing=空集（不去重）
+        if force:
+            existing = set()
+            print(">> [去重] 强制重下，跳过去重。")
+        else:
+            try:
+                from inbound_verify import store
+
+                existing = store.get_existing_handover_nos("中通")
+            except Exception as _e:
+                existing = set()
+                print(f">> [去重] 加载已落库交接单号失败，本次不去重: {_e}")
+
         for i in range(count):
             print(f"   ⏳ 正在处理第 {i+1}/{count} 个交接单...")
             row = ewb_frame.locator(
@@ -251,6 +264,11 @@ def zto_expected_download_impl(page):
             handover_no = match.group(0) if match else raw_text.strip()
             print(f"      -> 当前交接单号：{handover_no}")
 
+            # 【去重】已落库的交接单号不再提交导出任务（不双击、不 append export_times）
+            if handover_no in existing:
+                print(f"      ⏭️ 交接单号 {handover_no} 已落库，跳过提交导出。")
+                continue
+
             row.dblclick()
 
             ewb_frame.locator("#datagrid2").get_by_text("运单号").wait_for(
@@ -316,6 +334,11 @@ def zto_expected_download_impl(page):
         except Exception as e:
             print(f"   ⚠️ 关闭【进站交接单查询】标签页时出错: {e}")
 
+        # 【去重兜底】全部已落库/无数据 → 无导出任务，标签页已关，直接结束不进轮询
+        if not export_times:
+            print(">> 本次无新交接单需导出（全部已落库或无数据），结束。")
+            return True
+
         # 交由统一的轮询下载流程处理
         _zto_poll_and_download_tasks(
             page,
@@ -330,7 +353,7 @@ def zto_expected_download_impl(page):
         return False
 
 
-def zto_actual_download(page):
+def zto_actual_download(page, force=False):
     """中通：实到货物数据下载（内部含异常兜底重试，路由层无感）。"""
 
     return with_retry(