feat(admin): implement region renaming functionality and update UI components

backend/services/adminService.js

@@ -934,6 +934,30 @@ class AdminService {
         return region;
     }
 
+    async updateFalukantRegion(userId, regionId, { name } = {}) {
+        if (!(await this.hasUserAccess(userId, 'falukantusers'))) {
+            throw new Error('noaccess');
+        }
+
+        const regionName = String(name || '').trim();
+        if (!regionName) {
+            throw new Error('missingName');
+        }
+
+        const region = await RegionData.findByPk(regionId);
+        if (!region) {
+            throw new Error('regionNotFound');
+        }
+
+        region.name = regionName;
+        await region.save();
+
+        return RegionData.findByPk(region.id, {
+            attributes: ['id', 'name', 'map', 'regionTypeId', 'parentId'],
+            include: [{ model: RegionType, as: 'regionType', attributes: ['id', 'labelTr', 'parentId'] }],
+        });
+    }
+
     async deleteFalukantRegion(userId, regionId) {
         if (!(await this.hasUserAccess(userId, 'falukantusers'))) {
             throw new Error('noaccess');