Add debug logging for carrot product pricing in FalukantService

- Introduced console logs to trace the price calculation process specifically for the carrot product (productId: 3).
- Enhanced visibility into the evaluation of cities and the resulting prices, aiding in debugging and performance monitoring.
- Logged details when skipping the current city, calculating prices, and adding cities to the results, improving traceability of pricing logic.

backend/services/falukantService.js

@@ -3725,9 +3725,16 @@ class FalukantService extends BaseService {
 
         // Für jede Stadt den Preis berechnen und Branch-Typ bestimmen
         const results = [];
+        const isCarrot = productId === 3; // Debug für Karotten
+        if (isCarrot) {
+            console.log(`[getProductPricesInCities CARROT] productId: ${productId}, currentPrice: ${currentPrice}, currentRegionId: ${currentRegionId}, knowledgeFactor: ${knowledgeFactor}, product.sellCost: ${product.sellCost}, cities: ${cities.length}`);
+        }
         for (const city of cities) {
             // Aktuelle Stadt ausschließen
             if (currentRegionId && city.id === currentRegionId) {
+                if (isCarrot) {
+                    console.log(`[getProductPricesInCities CARROT] Skipping current city: ${city.name} (${city.id})`);
+                }
                 continue;
             }
             
@@ -3742,6 +3749,10 @@ class FalukantService extends BaseService {
             const max = basePrice;
             const priceInCity = min + (max - min) * (knowledgeFactor / 100);
             
+            if (isCarrot) {
+                console.log(`[getProductPricesInCities CARROT] City: ${city.name} (${city.id}), worthPercent: ${worthPercent}, basePrice: ${basePrice}, priceInCity: ${priceInCity}, currentPrice: ${currentPrice}, isBetter: ${priceInCity > currentPrice}`);
+            }
+            
             // Nur Städte zurückgeben, wo der Preis höher ist
             // Keine Toleranz, da wir die aktuelle Stadt bereits ausschließen
             if (priceInCity > currentPrice) {
@@ -3757,6 +3768,10 @@ class FalukantService extends BaseService {
                     }
                 }
 
+                if (isCarrot) {
+                    console.log(`[getProductPricesInCities CARROT] Adding ${city.name} to results: price=${priceInCity}, branchType=${branchType}`);
+                }
+
                 results.push({
                     regionId: city.id,
                     regionName: city.name,
@@ -3765,6 +3780,10 @@ class FalukantService extends BaseService {
                 });
             }
         }
+        
+        if (isCarrot) {
+            console.log(`[getProductPricesInCities CARROT] Returning ${results.length} cities with better prices:`, results.map(r => `${r.regionName} (${r.price})`).join(', '));
+        }
 
         // Sortiere nach Preis (höchster zuerst)
         results.sort((a, b) => b.price - a.price);