refactor: expected_undelivered uses paths.DOWNLOAD_DIR/OUTPUT_DIR (Tier 2)

Remove the duplicate BASE/DOWNLOADS/OUTPUT self-anchor (the one that caused the Tier 1 hotfix bug when the file moved into the package). DOWNLOADS/OUTPUT now come from paths.py; OUTFILE derives from OUTPUT_DIR. Behavior identical.

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

inbound_verify/expected_undelivered.py

@@ -40,12 +40,10 @@ from openpyxl.chart import BarChart, Reference
 from openpyxl.worksheet.page import PageMargins
 from openpyxl.worksheet.properties import PageSetupProperties
 
-# 包内文件：上两级 = 项目根（与 paths.BASE_DIR 一致；站点下载落在 <root>/downloads）。
-# 注：本模块自带锚点是 paths.py 的重复，Tier 2 计划改为直接引用 paths.DOWNLOAD_DIR/OUTPUT_DIR。
-BASE = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
-DOWNLOADS = os.path.join(BASE, "downloads")
-OUTPUT = os.path.join(BASE, "output")
-OUTFILE = os.path.join(OUTPUT, "应到未到数据.xlsx")
+from inbound_verify.paths import DOWNLOAD_DIR, OUTPUT_DIR
+
+# 比对报表输出文件（路径锚定统一走 paths.py）。
+OUTFILE = os.path.join(OUTPUT_DIR, "应到未到数据.xlsx")
 
 # 汇总报表覆盖的全部站点（4 站在前、百世在末；汇总页图表只取 4 站）
 ALL_REPORT_SITES = ["顺心", "中通", "韵达", "安能", "百世"]
@@ -143,8 +141,8 @@ def process(name):
     cfg = _site_cfg(name)
     if cfg is None:
         return None
-    exp_path = os.path.join(DOWNLOADS, cfg["exp"])
-    act_path = os.path.join(DOWNLOADS, cfg["act"])
+    exp_path = os.path.join(DOWNLOAD_DIR, cfg["exp"])
+    act_path = os.path.join(DOWNLOAD_DIR, cfg["act"])
     if not os.path.exists(exp_path) or not os.path.exists(act_path):
         print(f"[跳过] {cfg['name']}：downloads 下缺少 {cfg['exp']} 或 {cfg['act']}")
         return None
@@ -295,7 +293,7 @@ def write_station(ws, columns, rows):
 def process_baishi():
     """百世：读站点直供的未到明细，返回 (columns, rows, stats)；文件缺失返回 None。
     百世文件本身即未到结果（无应到/已到基数），统计只能给出未到件数。"""
-    path = os.path.join(DOWNLOADS, BAISHI_FILE)
+    path = os.path.join(DOWNLOAD_DIR, BAISHI_FILE)
     if not os.path.exists(path):
         return None
     df = pd.read_excel(path, dtype=str).fillna("")
@@ -335,7 +333,7 @@ def process_baishi():
 def write_site_file(name):
     """4 站：把该站未到明细写到 downloads/<站>-未到数据.xlsx。
     应到/实到缺（process 返回 None）→ 删旧文件、返回 False；成功返回 True。"""
-    path = os.path.join(DOWNLOADS, SITE_UNDELIVERED_FILE.format(name=name))
+    path = os.path.join(DOWNLOAD_DIR, SITE_UNDELIVERED_FILE.format(name=name))
     out = process(name)
     if out is None:
         if os.path.exists(path):
@@ -371,7 +369,7 @@ def build_full_report(include, dates=None):
     """生成全站汇总报表 output/应到未到数据.xlsx。
     include: 本次成功的站点集合；未成功站点在汇总里保留行、无数据（不影响他站）。
     返回 {站点: 未到件或None} 供日志。"""
-    os.makedirs(OUTPUT, exist_ok=True)
+    os.makedirs(OUTPUT_DIR, exist_ok=True)
     wb = Workbook()
     wb.remove(wb.active)
     summary_ws = wb.create_sheet("汇总报表")  # 首页占位
@@ -666,14 +664,14 @@ def main():
     include = set()
     for name in ALL_REPORT_SITES:
         if name == "百世":
-            if os.path.exists(os.path.join(DOWNLOADS, BAISHI_FILE)):
+            if os.path.exists(os.path.join(DOWNLOAD_DIR, BAISHI_FILE)):
                 include.add(name)
         else:
             cfg = _site_cfg(name)
             if (
                 cfg
-                and os.path.exists(os.path.join(DOWNLOADS, cfg["exp"]))
-                and os.path.exists(os.path.join(DOWNLOADS, cfg["act"]))
+                and os.path.exists(os.path.join(DOWNLOAD_DIR, cfg["exp"]))
+                and os.path.exists(os.path.join(DOWNLOAD_DIR, cfg["act"]))
             ):
                 include.add(name)
     if not include: