Update product sell costs in SQL and initialization script: Adjust sell costs for various products to improve game balance, ensuring consistency across the database and initialization logic.

backend/sql/rebalance_product_certificates.sql

@@ -2,17 +2,17 @@ BEGIN;
 
 UPDATE falukant_type.product
 SET sell_cost = CASE label_tr
-    WHEN 'wheat' THEN 7
-    WHEN 'grain' THEN 7
-    WHEN 'carrot' THEN 4
-    WHEN 'fish' THEN 7
-    WHEN 'meat' THEN 7
-    WHEN 'leather' THEN 7
-    WHEN 'wood' THEN 7
-    WHEN 'stone' THEN 7
-    WHEN 'milk' THEN 5
-    WHEN 'cheese' THEN 5
-    WHEN 'bread' THEN 5
+    WHEN 'wheat' THEN 11
+    WHEN 'grain' THEN 11
+    WHEN 'carrot' THEN 8
+    WHEN 'fish' THEN 11
+    WHEN 'meat' THEN 11
+    WHEN 'leather' THEN 11
+    WHEN 'wood' THEN 11
+    WHEN 'stone' THEN 11
+    WHEN 'milk' THEN 11
+    WHEN 'cheese' THEN 11
+    WHEN 'bread' THEN 11
     WHEN 'beer' THEN 22
     WHEN 'iron' THEN 24
     WHEN 'copper' THEN 24