Fügt die Funktionalität zur Aktualisierung des Teilnehmerstatus in officialTournamentController.js hinzu. Implementiert die Route zum Aktualisieren des Status eines Teilnehmers in officialTournamentRoutes.js und passt die Benutzeroberfläche in OfficialTournaments.vue an, um den neuen Status anzuzeigen und Aktionen wie Anmelden, Teilnehmen und Zurücksetzen zu ermöglichen.

backend/controllers/officialTournamentController.js

@@ -160,6 +160,71 @@ export const upsertCompetitionMember = async (req, res) => {
   }
 };
 
+export const updateParticipantStatus = async (req, res) => {
+  try {
+    const { authcode: userToken } = req.headers;
+    const { clubId, id } = req.params; // id = tournamentId
+    await checkAccess(userToken, clubId);
+    const { competitionId, memberId, action } = req.body;
+    
+    if (!competitionId || !memberId || !action) {
+      return res.status(400).json({ error: 'competitionId, memberId and action required' });
+    }
+
+    const [row] = await OfficialCompetitionMember.findOrCreate({
+      where: { competitionId, memberId },
+      defaults: {
+        tournamentId: id,
+        competitionId,
+        memberId,
+        wants: false,
+        registered: false,
+        participated: false,
+        placement: null,
+      }
+    });
+
+    // Status-Update basierend auf Aktion
+    switch (action) {
+      case 'register':
+        // Von "möchte teilnehmen" zu "angemeldet"
+        row.wants = true;
+        row.registered = true;
+        row.participated = false;
+        break;
+      case 'participate':
+        // Von "angemeldet" zu "hat gespielt"
+        row.wants = true;
+        row.registered = true;
+        row.participated = true;
+        break;
+      case 'reset':
+        // Zurück zu "möchte teilnehmen"
+        row.wants = true;
+        row.registered = false;
+        row.participated = false;
+        break;
+      default:
+        return res.status(400).json({ error: 'Invalid action. Use: register, participate, or reset' });
+    }
+
+    await row.save();
+    return res.status(200).json({ 
+      success: true, 
+      id: row.id,
+      status: {
+        wants: row.wants,
+        registered: row.registered,
+        participated: row.participated,
+        placement: row.placement
+      }
+    });
+  } catch (e) {
+    console.error('[updateParticipantStatus] Error:', e);
+    res.status(500).json({ error: 'Failed to update participant status' });
+  }
+};
+
 export const listOfficialTournaments = async (req, res) => {
   try {
     const { authcode: userToken } = req.headers;