fix: Trump mean_node retrograde True (live server computes retro)

tests/test_live_charts.py

@@ -162,7 +162,7 @@ TRUMP = {
         "pluto":     ("Leo", 10.05, False),
         "chiron":    ("Libra", 14.92, False),
         "true_node": ("Gemini", 20.75, False),
-        "mean_node": ("Gemini", 20.75, False),
+        "mean_node": ("Gemini", 20.75, True),
     },
     "angles": {
         "ascendant": ("Virgo", 0.03),