fix(web): stop rectification interview when remaining minutes no longer split

Coverage-complete ties stayed in discrimination because whole-window D9/D24 follow-ups were treated as probes, and restated dates inserted duplicate evidence. Skip encoded remaining layers, ask leftover D4 or offer a provisional range, and dedupe dated rows by kind and date.

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

tests/test_rectification_event_probes.py

@@ -288,6 +288,38 @@ class EventProbesTest(unittest.TestCase):
         self.assertTrue(any(item["source"] in {"dasha_activation", "dasha_boundary"} for item in probes))
         self.assertTrue(any(item["domain"] == "relocation" for item in probes))
 
+    def test_enrollment_skips_adjacent_education_existence_year(self) -> None:
+        built = {
+            "static_contexts": [
+                {"feature": {"time": "05:13", "varga_ascendants": {"D4": 1, "D9": 1, "D10": 1, "D5": 1}}},
+                {"feature": {"time": "05:14", "varga_ascendants": {"D4": 2, "D9": 1, "D10": 1, "D5": 2}}},
+            ]
+        }
+        probes = discriminating_event_probes(
+            _request(
+                birth_date="1998-08-08",
+                events=[{
+                    "id": "00000000-0000-4000-8000-000000000001",
+                    "domain": "education",
+                    "summary": "2016年9月进入大学",
+                    "date": "2016-09-01",
+                    "precision": "month",
+                }],
+            ),
+            built,
+            scan=window_scan(built),
+            candidate_times=["05:13", "05:14"],
+            representative_time="05:13",
+            precision_current="d5_refine",
+            today=date(2026, 8, 22),
+        )
+        existence = [
+            item for item in probes
+            if item["domain"] == "education" and item["source"] != "known_event_quality"
+        ]
+        self.assertFalse(any(item["year"] in {2015, 2016, 2017} for item in existence))
+        self.assertFalse(any("高考是 2015" in str(item.get("user_meaning") or "") for item in probes))
+
     def test_representatives_prefer_remaining_candidate_times(self) -> None:
         built = {
             "static_contexts": [