Add product weather effects and regional pricing enhancements

- Introduced a new endpoint in FalukantController to retrieve product prices based on region and product ID.
- Implemented logic in FalukantService to calculate product prices considering user knowledge and regional factors.
- Added weather-related data models and associations to enhance product pricing accuracy based on weather conditions.
- Updated frontend components to cache and display regional product prices effectively, improving user experience.

backend/models/falukant/data/weather.js

@@ -0,0 +1,40 @@
+import { Model, DataTypes } from 'sequelize';
+import { sequelize } from '../../../utils/sequelize.js';
+import RegionData from './region.js';
+import WeatherType from '../type/weather.js';
+
+class Weather extends Model {}
+
+Weather.init(
+  {
+    regionId: {
+      type: DataTypes.INTEGER,
+      allowNull: false,
+      references: {
+        model: RegionData,
+        key: 'id',
+        schema: 'falukant_data'
+      },
+      unique: true // Jede Stadt hat nur ein Wetter
+    },
+    weatherTypeId: {
+      type: DataTypes.INTEGER,
+      allowNull: false,
+      references: {
+        model: WeatherType,
+        key: 'id',
+        schema: 'falukant_type'
+      }
+    }
+  },
+  {
+    sequelize,
+    modelName: 'Weather',
+    tableName: 'weather',
+    schema: 'falukant_data',
+    timestamps: false,
+    underscored: true}
+);
+
+export default Weather;
+