标出研究章和 PyJHora 的已知差别（#92）。

10 张虚构盘逐体系对照。不一致的方法在标题下写明差在哪一类。本命 Tithi 顺行一致，逆行没有公开函数。Windows 上 1970 年以前的日出不再用 fromtimestamp。

自测：合同与研究章测试通过；200 张英文扫描约 1956 秒通过。未跑全量 pytest、快速门和前端。

Co-Authored-By: Grok (agent loop)

tests/test_report_reader_main.py

@@ -88,7 +88,14 @@ def _class_args(**overrides):
 
 
 def _leak_hits(markdown: str) -> list[str]:
-    return [pattern.pattern for pattern in LEAK_PATTERNS if pattern.search(markdown)]
+    # 原值：整篇里出现 PyJHora 都算泄漏
+    # 新值：以「与 PyJHora 不一致：」或「Differs from PyJHora:」开头的行先拿掉，其余照旧
+    # 原因：#92 研究章要在标题下保留这两句对照；其它 PyJHora 字样仍然失败
+    kept = "\n".join(
+        line for line in (markdown or "").splitlines()
+        if not line.startswith("与 PyJHora 不一致：") and not line.startswith("Differs from PyJHora:")
+    )
+    return [pattern.pattern for pattern in LEAK_PATTERNS if pattern.search(kept)]
 
 
 @pytest.fixture(scope="module")
@@ -169,6 +176,15 @@ def test_class_args_copy_keeps_year_for_kp_and_transit(full_reading) -> None:
         assert "error" not in module or not str(module.get("error", "")).startswith("KP producer failed")
 
 
+def test_pyjhora_mismatch_lines_are_not_reader_leaks() -> None:
+    # 原值：任何含 PyJHora 的文本都命中泄漏
+    # 新值：只有对照句以外的 PyJHora 命中泄漏
+    # 原因：#92 允许研究章保留这两句，不能因此放行其它位置
+    assert _leak_hits("Differs from PyJHora: start\n与 PyJHora 不一致：差在 起点\n") == []
+    hits = _leak_hits("Calculated by PyJHora.\n")
+    assert any("PyJHora" in hit for hit in hits)
+
+
 def test_reader_main_hides_audit_vocabulary(full_reading) -> None:
     from scripts.jyotish_engine import build_professional_report_reference_packet
 

tests/test_research_timing.py

@@ -6,6 +6,7 @@ import ast
 import bisect
 import hashlib
 import json
+import re
 from datetime import datetime, timedelta, timezone
 from pathlib import Path
 
@@ -16,7 +17,7 @@ from scripts.research_timing.bundle import chart_from_parts, research_bundle
 from scripts.research_timing.frame import SiderealFrame, birth_jd
 from scripts.research_timing.rashi_pd import attach_rashi_pratyantar
 from scripts.research_timing.render import _heading, render_research_chapters
-from scripts.research_timing.search import ElongationClock, find_returns
+from scripts.research_timing.search import ElongationClock, _utc_from_jd, find_returns, hindu_solar_events
 from scripts.rashi_dashas_native import calculate_rashi_dashas
 from tests.report_english_fictional import fictional_case
 
@@ -125,7 +126,11 @@ def test_rendered_chapters_keep_the_research_banner_and_drop_snake_case() -> Non
     assert _SNAKE.search(chinese) is None
     assert _SNAKE.search(english) is None
     assert "blocked" not in english.lower()
-    assert "PyJHora" not in english
+    # 原值：assert "PyJHora" not in english
+    # 新值：英文里的 PyJHora 只允许出现在「Differs from PyJHora:」开头的对照行
+    # 原因：#92 修复单要求不一致的体系写这句；其它位置仍然不能出现 PyJHora
+    stray = [line for line in english.splitlines() if "PyJHora" in line and not line.startswith("Differs from PyJHora:")]
+    assert stray == []
     assert "主星/名称" in chinese
     assert "次小运按简化模型，从现有主运按比例分出。主运和子运与原来的表相同。" in chinese
     assert "收录的教程没有写明第三层。" in chinese
@@ -190,6 +195,101 @@ def test_rectification_modules_do_not_import_the_research_package() -> None:
             assert all("research_timing" not in module for module in modules), path.name
 
 
+def _sections(markdown: str) -> list[tuple[str, str]]:
+    parts = re.split(r"(?m)^## ", markdown)
+    rows = []
+    for part in parts[1:]:
+        title, _, body = part.partition("\n")
+        rows.append((title.strip(), body))
+    return rows
+
+
+def _under(rows: list[tuple[str, str]], heading: str, match: str) -> list[str]:
+    found = []
+    for title, body in rows:
+        if title == heading or (match == "prefix" and title.startswith(heading + " ")):
+            found.append(body)
+    return found
+
+
+def test_solar_events_before_1970_stay_available_on_windows() -> None:
+    """BUG-1429. Windows fromtimestamp rejects instants before 1970."""
+    moment = datetime(1950, 6, 15, 12, 0, tzinfo=timezone.utc)
+    events = hindu_solar_events(moment, 0.0, 0.0)
+    assert events
+    assert all(item["event"] in {"sunrise", "sunset"} for item in events)
+    parsed = datetime.fromisoformat(events[0]["datetime_utc"])
+    assert parsed.year == 1950
+    assert parsed.tzinfo is not None
+    after = _utc_from_jd(2451545.0)
+    expect = datetime.fromtimestamp((2451545.0 - 2440587.5) * 86400.0, timezone.utc)
+    assert abs((after - expect).total_seconds()) < 1e-3
+    seen = 0
+    for index in range(200):
+        case = fictional_case(index)
+        if int(case["year"]) >= 1970:
+            continue
+        zone = timezone(timedelta(hours=float(case["tz"])))
+        birth = datetime(
+            int(case["year"]), int(case["month"]), int(case["day"]), 12, 0, tzinfo=zone,
+        )
+        rows = hindu_solar_events(birth, float(case["lat"]), float(case["lon"]))
+        assert rows
+        seen += 1
+    assert seen > 0
+
+
+def test_pyjhora_mismatch_labels_follow_the_committed_json() -> None:
+    """Read the offline JSON. This test does not import jhora."""
+    path = ROOT / "docs" / "tasks" / "research-timing-pyjhora-20261023.json"
+    payload = json.loads(path.read_text(encoding="utf-8"))
+    assert payload["charts"] >= 5
+    assert payload["status"] == "compared"
+    systems = payload["systems"]
+    assert isinstance(systems, dict) and systems
+    case, _chart_data = _chart(0)
+    base = {"birth_info": case, "worksheets": {}, "calculation_profile": {}}
+    from scripts.pl9_full_data_export import render_full_data_markdown
+
+    chinese = render_full_data_markdown(dict(base))
+    english_packet = dict(base)
+    english_packet["report_language"] = "en"
+    english = render_full_data_markdown(english_packet)
+    if any(item.get("status") == "不一致" for item in systems.values()):
+        assert "与 PyJHora 不一致：" in chinese
+        assert "Differs from PyJHora:" in english
+    zh_rows = _sections(chinese)
+    en_rows = _sections(english)
+    for name, item in systems.items():
+        status = item["status"]
+        assert status in {"一致", "不一致", "无此方法"}, name
+        same_lord = re.search(r"native (\w+) vs PyJHora (\w+)", str(item.get("example") or ""))
+        if same_lord:
+            assert same_lord.group(1) != same_lord.group(2), (name, item.get("example"))
+        for rows, heading, sentence in (
+            (zh_rows, item["heading_zh"], f"与 PyJHora 不一致：差在 {item.get('category') or ''}"),
+            (en_rows, item["heading_en"], f"Differs from PyJHora: {item.get('category_en') or ''}"),
+        ):
+            bodies = _under(rows, heading, item.get("match") or "exact")
+            assert bodies, (name, heading)
+            if status == "不一致":
+                assert all(sentence in body for body in bodies), (name, heading)
+            else:
+                assert all("与 PyJHora 不一致：" not in body and "Differs from PyJHora:" not in body for body in bodies), name
+    tree = ast.parse((ROOT / "scripts" / "research" / "research_timing_pyjhora_compare.py").read_text(encoding="utf-8"))
+    allowed = {"pyjhora_fingerprints", "_py_tithi_return_days"}
+    for node in tree.body:
+        if isinstance(node, ast.FunctionDef) and node.name in allowed:
+            continue
+        for child in ast.walk(node):
+            module = ""
+            if isinstance(child, ast.Import):
+                module = " ".join(alias.name for alias in child.names)
+            elif isinstance(child, ast.ImportFrom):
+                module = child.module or ""
+            assert not module.startswith("jhora"), module
+
+
 def test_rectification_golden_file_is_unchanged() -> None:
     digest = hashlib.sha256((ROOT / _GOLDEN).read_bytes()).hexdigest()
     assert digest == "92efd8fdbae43f553b0006cfe28e929d5255fe02f3c36e616475fa149a356212"