feat: 事件异常按工作日累计已过小时数

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

inquiry-agent/tests/test_deal_followup.py

@@ -14,6 +14,7 @@ from agent.policy.deal_followup import (
     leader_matches,
     next_followup_at,
     shift_workdays,
+    workday_elapsed_hours,
 )
 
 
@@ -37,6 +38,22 @@ class TestWorkdays(unittest.TestCase):
         self.assertEqual(when.tzinfo, SHANGHAI)
         self.assertEqual(when.date(), date(2026, 9, 24))
 
+    def test_skip_weekend_keep_weekday_night(self) -> None:
+        start = datetime(2026, 9, 18, 17, 0, tzinfo=SHANGHAI)  # 周五
+        now = datetime(2026, 9, 21, 17, 0, tzinfo=SHANGHAI)  # 周一
+        # 周五 17–24 = 7h，周末不算，周一 0–17 = 17h
+        self.assertAlmostEqual(workday_elapsed_hours(start, now), 24.0, places=4)
+
+    def test_rest_day_start_counts_from_next_workday(self) -> None:
+        start = datetime(2026, 9, 19, 10, 0, tzinfo=SHANGHAI)  # 周六
+        now = datetime(2026, 9, 21, 10, 0, tzinfo=SHANGHAI)  # 周一
+        self.assertAlmostEqual(workday_elapsed_hours(start, now), 10.0, places=4)
+
+    def test_fractional_quarter_hour(self) -> None:
+        start = datetime(2026, 9, 18, 9, 0, tzinfo=SHANGHAI)
+        now = datetime(2026, 9, 18, 9, 15, tzinfo=SHANGHAI)
+        self.assertAlmostEqual(workday_elapsed_hours(start, now), 0.25, places=4)
+
 
 class TestAirRouteKeys(unittest.TestCase):
     def test_pair_and_dest(self) -> None: