rework shop

backend/app/services/coins.py

@@ -14,19 +14,19 @@ class CoinsService:
 
     # Coins awarded per challenge difficulty (only in certified marathons)
     CHALLENGE_COINS = {
-        Difficulty.EASY.value: 5,
-        Difficulty.MEDIUM.value: 12,
-        Difficulty.HARD.value: 25,
+        Difficulty.EASY.value: 10,
+        Difficulty.MEDIUM.value: 20,
+        Difficulty.HARD.value: 35,
     }
 
     # Coins for playthrough = points * this ratio
-    PLAYTHROUGH_COIN_RATIO = 0.05  # 5% of points
+    PLAYTHROUGH_COIN_RATIO = 0.10  # 10% of points
 
     # Coins awarded for marathon placements
     MARATHON_PLACE_COINS = {
-        1: 100,  # 1st place
-        2: 50,   # 2nd place
-        3: 30,   # 3rd place
+        1: 500,  # 1st place
+        2: 250,  # 2nd place
+        3: 150,  # 3rd place
     }
 
     # Bonus coins for Common Enemy event winners