Add Falukant region and transport management features

- Implemented new endpoints in AdminController for managing Falukant regions, including fetching, updating, and deleting region distances.
- Enhanced the FalukantService with methods for retrieving region distances and handling upsert operations.
- Updated the router to expose new routes for region management and transport creation.
- Introduced a transport management interface in the frontend, allowing users to create and manage transports between branches.
- Added localization for new transport-related terms and improved the vehicle management interface to include transport options.
- Enhanced the database initialization logic to support new region and transport models.

backend/models/associations.js

@@ -98,6 +98,7 @@ import UndergroundType from './falukant/type/underground.js';
 import VehicleType from './falukant/type/vehicle.js';
 import Vehicle from './falukant/data/vehicle.js';
 import Transport from './falukant/data/transport.js';
+import RegionDistance from './falukant/data/region_distance.js';
 import Blog from './community/blog.js';
 import BlogPost from './community/blog_post.js';
 import Campaign from './match3/campaign.js';
@@ -453,6 +454,24 @@ export default function setupAssociations() {
     as: 'region',
   });
 
+  // Region distances
+  RegionData.hasMany(RegionDistance, {
+    foreignKey: 'sourceRegionId',
+    as: 'distancesFrom',
+  });
+  RegionData.hasMany(RegionDistance, {
+    foreignKey: 'targetRegionId',
+    as: 'distancesTo',
+  });
+  RegionDistance.belongsTo(RegionData, {
+    foreignKey: 'sourceRegionId',
+    as: 'sourceRegion',
+  });
+  RegionDistance.belongsTo(RegionData, {
+    foreignKey: 'targetRegionId',
+    as: 'targetRegion',
+  });
+
   Transport.belongsTo(RegionData, {
     foreignKey: 'sourceRegionId',
     as: 'sourceRegion',