Add detailed debug logging in loadPricesForAllProducts method of RevenueSection

- Enhanced the loadPricesForAllProducts method with additional console logs to track the loading process of product prices, including the current region ID and the number of products being processed.
- Improved visibility into the state of betterPricesMap after updates and provided detailed logs for each product's price loading, facilitating easier debugging and monitoring of price retrieval.
- Aims to enhance traceability and provide clearer insights into the price handling process within the RevenueSection component.

frontend/src/components/falukant/RevenueSection.vue

@@ -113,15 +113,19 @@
         }
       },
       async loadPricesForAllProducts() {
+        console.log('[RevenueSection] loadPricesForAllProducts called, currentRegionId:', this.currentRegionId);
         if (this.currentRegionId === null || this.currentRegionId === undefined) {
+          console.log('[RevenueSection] currentRegionId is null/undefined, returning');
           return;
         }
+        console.log('[RevenueSection] Loading prices for', this.products.length, 'products');
         for (const product of this.products) {
           if (this.loadingPrices.has(product.id)) continue;
           this.loadingPrices.add(product.id);
           try {
             // Verwende den gerundeten Preis aus calculateProductRevenue (wie gewollt)
             const currentPrice = parseFloat(this.calculateProductRevenue(product).absolute);
+            console.log(`[RevenueSection] Loading prices for product ${product.id} (${product.labelTr}), currentPrice: ${currentPrice}`);
             
             const { data } = await apiClient.get('/api/falukant/products/prices-in-cities', {
               params: {
@@ -130,12 +134,14 @@
                 currentRegionId: this.currentRegionId
               }
             });
+            console.log(`[RevenueSection] Received ${data?.length || 0} better prices for product ${product.id}:`, data);
             // Speichere betterPrices in einem separaten Map, nicht auf dem product Objekt
             // In Vue 3 müssen wir ein neues Objekt erstellen, um die Reaktivität zu triggern
             this.betterPricesMap = {
               ...this.betterPricesMap,
               [product.id]: data || []
             };
+            console.log(`[RevenueSection] Updated betterPricesMap for product ${product.id}:`, this.betterPricesMap[product.id]);
           } catch (error) {
             console.error(`Error loading prices for product ${product.id}:`, error);
             this.betterPricesMap = {
@@ -146,9 +152,12 @@
             this.loadingPrices.delete(product.id);
           }
         }
+        console.log('[RevenueSection] Finished loading prices, betterPricesMap:', this.betterPricesMap);
       },
       getBetterPrices(productId) {
-        return this.betterPricesMap[productId] || [];
+        const prices = this.betterPricesMap[productId] || [];
+        console.log(`[RevenueSection] getBetterPrices(${productId}):`, prices, 'full map:', this.betterPricesMap);
+        return prices;
       },
       getCityPriceClass(branchType) {
         if (branchType === 'store') return 'city-price-green';