Centralize paths in paths.py and harden waybill-number handling

- Add paths.py: BASE_DIR/DOWNLOAD_DIR/CONFIG_PATH anchored on __file__
  so paths resolve regardless of the launch cwd
- Route main_router and all site modules through DOWNLOAD_DIR/CONFIG_PATH,
  replacing os.getcwd()-based download dirs and the "config.yaml" literal
- main_router compare engine: read Excel as str with keep_default_na,
  strip/normalize 运单号, drop blanks, and isin against a set so
  int/float-vs-str mismatches no longer produce false "undelivered"
- Shunxin: give downloaded files unique microsecond temp names and read
  Excel as str to preserve long-waybill precision
- Normalize bare except: to except Exception: across affected files

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

main_router.py

@@ -5,6 +5,8 @@ import yaml
 import pandas as pd
 from playwright.sync_api import sync_playwright
 
+from paths import DOWNLOAD_DIR, CONFIG_PATH
+
 # 导入抽离出去的各个网点模块
 import site_shunxin
 import site_baishi
@@ -34,7 +36,7 @@ def task_process_undelivered_data(site_name="顺心"):
     """全局模块：应到未到异常件比对引擎 (支持动态网点前缀)"""
     print(f"\n▶ 开始执行【{site_name} - 应到未到数据处理】任务...")
 
-    download_dir = os.path.join(os.getcwd(), "downloads")
+    download_dir = DOWNLOAD_DIR
     expected_path = os.path.join(download_dir, f"{site_name}-应到货物数据.xlsx")
     actual_path = os.path.join(download_dir, f"{site_name}-实到货物数据.xlsx")
     output_path = os.path.join(download_dir, f"{site_name}-应到未到货物数据.xlsx")
@@ -49,8 +51,9 @@ def task_process_undelivered_data(site_name="顺心"):
 
     try:
         print(">> 正在载入本地 Excel 文档...")
-        df_expected = pd.read_excel(expected_path)
-        df_actual = pd.read_excel(actual_path)
+        # 全部按字符串读取并保留空串：避免 18 位运单号被当成浮点数丢精度，也避免空单元格变成 NaN。
+        df_expected = pd.read_excel(expected_path, dtype=str, keep_default_na=False)
+        df_actual = pd.read_excel(actual_path, dtype=str, keep_default_na=False)
 
         if "运单号" not in df_expected.columns or "运单号" not in df_actual.columns:
             print("❌ 核心资产校验失败：数据源中缺失【运单号】字段，请检查导出配置。")
@@ -58,8 +61,16 @@ def task_process_undelivered_data(site_name="顺心"):
 
         print(">> 正在启动多维数据集比对引擎...")
 
+        # 统一运单号为去空白字符串，消除 int/float 与 str 混读导致 isin 永不命中的隐患
+        df_expected["运单号"] = df_expected["运单号"].astype(str).str.strip()
+        df_actual["运单号"] = df_actual["运单号"].astype(str).str.strip()
+
+        # 剔除空白运单号，避免空值被误判为“应到未到”
+        df_expected = df_expected[df_expected["运单号"] != ""]
+        actual_set = set(df_actual["运单号"]) - {""}
+
         # Left Anti-Join：在应到中找出不存在于实到里的运单号
-        df_undelivered = df_expected[~df_expected["运单号"].isin(df_actual["运单号"])]
+        df_undelivered = df_expected[~df_expected["运单号"].isin(actual_set)]
 
         target_columns = ["班次号", "交接单号", "运单号"]
         available_columns = [
@@ -86,8 +97,8 @@ def run_multi_site_daemon():
     debug_mode = False
     debug_target = ""
     try:
-        if os.path.exists("config.yaml"):
-            with open("config.yaml", "r", encoding="utf-8") as f:
+        if os.path.exists(CONFIG_PATH):
+            with open(CONFIG_PATH, "r", encoding="utf-8") as f:
                 config = yaml.safe_load(f)
                 debug_mode = config.get("debug", {}).get("enabled", False)
                 debug_target = config.get("debug", {}).get("target_site", "")
@@ -191,7 +202,7 @@ def run_multi_site_daemon():
                                 if read_btns.nth(i).is_visible(timeout=500):
                                     read_btns.nth(i).click()
                                     handled_any = True
-                    except:
+                    except Exception:
                         pass
                     try:
                         if bs_page.locator("button:has-text('关 闭')").is_visible(
@@ -199,7 +210,7 @@ def run_multi_site_daemon():
                         ):
                             bs_page.locator("button:has-text('关 闭')").click()
                             handled_any = True
-                    except:
+                    except Exception:
                         pass
                     if not handled_any:
                         break