feat: implement user linking for members and update database schema for user associations

- Changed file permissions from 644 to 755 for various files in the mobile-app and mobile-app_legacy_rn_expo directories, ensuring executable permissions where necessary.
- Added a new SQL migration script to the backend to introduce missing columns for club billing and invoice settings in the clubs table, maintaining synchronization with the current Sequelize model.

backend/controllers/clubDashboardController.js

@@ -610,7 +610,7 @@ export const getClubDashboard = async (req, res) => {
             title: 'Finanzen',
             value: paidRatio === null ? 'Keine Daten' : `${paidRatio} % erledigt`,
             meta: paymentClaims.length > 0 ? `${paymentClaims.length} offene oder teilweise offene Forderungen` : 'Noch keine Beitragsforderungen erfasst',
-            to: '/club-tasks',
+            to: '/club-payments',
           },
         ],
       },

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);
@@ -16,7 +16,9 @@ export const uploadCSV = async (req, res) => {
         });
     } catch (error) {
         console.error('Error importing CSV:', error);
-        return res.status(500).json({ error: 'Failed to import CSV data' });
+        return res.status(500).json({
+            error: error.message || 'Failed to import CSV data'
+        });
     }
 };
 

backend/controllers/memberController.js

@@ -2,6 +2,8 @@ import MemberService from "../services/memberService.js";
 import MemberTransferService from "../services/memberTransferService.js";
 import clickTtPlayerRegistrationService from "../services/clickTtPlayerRegistrationService.js";
 import { emitMemberChanged } from '../services/socketService.js';
+import Member from '../models/Member.js';
+import UserClub from '../models/UserClub.js';
 
 import { devLog } from '../utils/logger.js';
 const getClubMembers = async(req, res) => {
@@ -351,6 +353,28 @@ const transferMembers = async (req, res) => {
     }
 };
 
+const linkMemberUser = async (req, res) => {
+    try {
+        const clubId = Number(req.params.clubId);
+        const memberId = Number(req.params.memberId);
+        const userId = Number(req.body?.userId);
+        if (!clubId || !memberId || !userId) return res.status(400).json({ error: 'Mitglied, Verein und Benutzer sind erforderlich.' });
+        const [member, clubUser, existing] = await Promise.all([
+            Member.findOne({ where: { id: memberId, clubId } }),
+            UserClub.findOne({ where: { clubId, userId, approved: true } }),
+            Member.findOne({ where: { userId } }),
+        ]);
+        if (!member || !clubUser) return res.status(404).json({ error: 'Mitglied oder freigegebener Vereinsbenutzer wurde nicht gefunden.' });
+        if (existing && Number(existing.id) !== memberId) return res.status(409).json({ error: 'Dieses Benutzerkonto ist bereits einem Mitglied zugeordnet.' });
+        await member.update({ userId });
+        emitMemberChanged(clubId);
+        res.json({ memberId, userId });
+    } catch (error) {
+        console.error('[linkMemberUser] - Error:', error);
+        res.status(500).json({ error: 'Mitglied konnte nicht verknüpft werden.' });
+    }
+};
+
 export {
     getClubMembers,
     getWaitingApprovals,
@@ -372,5 +396,6 @@ export {
     requestClickTtPlayerRegistration,
     deleteMemberImage,
     setPrimaryMemberImage,
-    generateMemberGallery
+    generateMemberGallery,
+    linkMemberUser
 };

backend/controllers/myTischtennisUrlController.js

@@ -250,39 +250,37 @@ class MyTischtennisUrlController {
         throw new HttpError('Club team not found', 404);
       }
 
-      let league;
-      
-      // First, try to find existing league by name and season
       const leagueName = completeData.leagueName || completeData.groupname;
-      league = await League.findOne({
-        where: {
-          name: leagueName,
-          seasonId: season.id,
-          clubId: team.clubId
+      let league;
+
+      // The league chosen for a club team is also used by the schedule filters.
+      // Keep that assignment and only enrich it with the MyTischtennis metadata.
+      if (team.leagueId) {
+        league = await League.findOne({
+          where: { id: team.leagueId, clubId: team.clubId }
+        });
+        if (league) {
+          devLog(`Keeping team's existing league: ${league.name} (ID: ${league.id})`);
         }
-      });
+      }
+
+      if (!league) {
+        league = await League.findOne({
+          where: {
+            name: leagueName,
+            seasonId: season.id,
+            clubId: team.clubId
+          }
+        });
+      }
 
       if (league) {
-        devLog(`Found existing league: ${league.name} (ID: ${league.id})`);
-        // Update myTischtennis fields
+        devLog(`Using existing league: ${league.name} (ID: ${league.id})`);
         await league.update({
           myTischtennisGroupId: completeData.groupId,
           association: completeData.association,
           groupname: completeData.groupname
         });
-      } else if (team.leagueId) {
-        // Team has a league assigned, update it
-        league = await League.findByPk(team.leagueId);
-        
-        if (league) {
-          devLog(`Updating team's existing league: ${league.name} (ID: ${league.id})`);
-          await league.update({
-            name: leagueName,
-            myTischtennisGroupId: completeData.groupId,
-            association: completeData.association,
-            groupname: completeData.groupname
-          });
-        }
       } else if (createLeague) {
         // Create new league
         devLog(`Creating new league: ${leagueName}`);