feat: add yoga logic validation and varga fixes

scripts/varga.py

@@ -52,11 +52,15 @@ def varga_map(si, pi, div):
     """BPHS分盘映射：星座索引si的第pi份→目标星座索引"""
     o = _odd(si)
     if div==2: return (4 if o else 3) if pi==0 else (3 if o else 4)
-    if div==3: return (si+pi*4)%12 if o else (si+8+pi*4)%12
+    if div==3: return (si+pi*4)%12  # Drekkana: same → +4 → +8, no odd/even distinction
     if div==4: return (si+pi)%12 if o else (si+8+pi)%12
     if div==7: return (si+pi)%12 if o else (si+6+pi)%12
     if div==9:
-        el={0:0,1:9,2:6,3:3}; return (el[si%4]+pi)%12
+        # BPHS Navamsa: movable(0,3,6,9)=same, fixed(1,4,7,10)=+4, dual(2,5,8,11)=+8
+        if si%3==0: start=si
+        elif si%3==1: start=(si+4)%12
+        else: start=(si+8)%12
+        return (start+pi)%12
     if div==10: return (si+pi)%12 if o else (si+8+pi)%12  # D10: even signs count from 9th inclusively => +8 offset
     if div==12: return (si+pi)%12
     if div==16: return ((0 if o else 4)+pi)%12  # D16: movable=+0, fixed=+4; dual needs separate (2026-05-03 fix: was +1)
@@ -72,17 +76,7 @@ def varga_map(si, pi, div):
 def calc_varga(lon, div):
     """计算行星在指定分盘的位置（星座+精确度数+尊贵状态）"""
     si=_si(lon); d=lon-si*30; ps=30.0/div; pi=int(d/ps)
-    if div == 9:
-        # D9 Navamsa: retain harmonic longitude output to match existing skill/JHora-style readings.
-        nav_lon = (lon * 9) % 360
-        vsi = int(nav_lon / 30) % 12
-        dp = nav_lon - vsi * 30
-        pi = int(d / ps)
-        r = {'sign': _sn(vsi), 'sign_idx': vsi, 'degree_in_sign': round(dp, 4),
-             'part_index': pi, 'lord': SIGN_LORDS.get(_sn(vsi), ''), 'pada': pi + 1}
-        return r
-    # For non-D9 vargas, degree within divisional sign is scaled to 0-30 degrees.
-    # Previous code returned only the within-part remainder (0-part_size), which made D10 degree output non-standard.
+    # For all vargas, degree within divisional sign is scaled to 0-30 degrees.
     dp=(d-pi*ps)*div
     vsi=varga_map(si,pi,div)
     r={'sign':_sn(vsi),'sign_idx':vsi,'degree_in_sign':round(dp,4),