Release v6.0.44 fix JD timezone bug in reference data

- Fix: _compute_one_chart.py JD calculation used PyJHora's
  gregorian_to_jd() which ALWAYS returns noon JD regardless of time.
  Changed to swe.julday() with correct UTC hour.
- Impact: All 60 test charts with non-noon birth times had wrong
  ascendants and house assignments (e.g. Einstein went from
  Scorpio Asc -> Gemini Asc, matching Swiss Ephemeris)
- Cross-validated: Swiss Ephemeris (industry gold standard) and
  xalen-ephemeris (Rust, 5M chart oracle test)
- New baseline: F1=93.50% (Precision=93.82%, Recall=93.18%)
- Regenerated: standard_test_charts.json, planet_positions_60.json,
  validation_logic_report.json
- Quality gate: compile/json/audit/BPHS/pytest/golden all passed

scripts/_compute_one_chart.py

@@ -25,6 +25,7 @@ try:
         from jhora.panchanga import drik
         from jhora.panchanga.drik import Place
         import jhora.utils as utils
+        import swisseph as swe
     PYJHORA_OK = True
 except Exception as e:
     PYJHORA_OK = False
@@ -85,12 +86,13 @@ def compute_yogas(chart):
             tz = tz_to_float(chart["tz"])
             place = Place(chart["city"], chart["lat"], chart["lon"], tz)
 
-            # 构造datetime并转JD
+            # 构造datetime，转正确UTC JD（修复：PyJHora的gregorian_to_jd返回正午JD，无视时间）
             date_str = chart["date"] + " " + chart["time"]
             if date_str.count(':') == 1:
                 date_str += ":00"
             dt = datetime.datetime.strptime(date_str, "%Y-%m-%d %H:%M:%S")
-            jd = utils.gregorian_to_jd(dt)
+            utc_hour = dt.hour - tz + dt.minute / 60.0 + dt.second / 3600.0
+            jd = swe.julday(dt.year, dt.month, dt.day, utc_hour)
             dob = drik.Date(dt.year, dt.month, dt.day)
             tob = (dt.hour, dt.minute, dt.second)