fix: update clubId handling in CSV upload to support query parameters and improve form data processing

backend/controllers/matchController.js

@@ -4,7 +4,7 @@ import { emitScheduleMatchUpdated } from '../services/socketService.js';
 import { devLog } from '../utils/logger.js';
 export const uploadCSV = async (req, res) => {
     try {
-        const { clubId } = req.body;
+        const clubId = req.body?.clubId ?? req.query?.clubId;
         const { authcode: userToken} = req.headers;
         const filePath = req.file.path;
         const result = await MatchService.importCSV(userToken, clubId, filePath);

frontend/src/views/ScheduleView.vue

@@ -2208,7 +2208,10 @@ export default {
             try {
                 // Let the browser add the multipart boundary. Setting Content-Type manually
                 // drops it and prevents Multer from reading form fields such as clubId.
-                const response = await apiClient.post('/matches/import', formData);
+                const response = await apiClient.post(
+                    `/matches/import?clubId=${encodeURIComponent(this.currentClub)}`,
+                    formData
+                );
                 if (response.status < 200 || response.status >= 300) {
                     throw new Error(response.data?.error || 'Failed to import CSV data');
                 }