feat(tournament): enhance external participant management with email and address fields

- Added email and address fields to the external participant model, allowing for more comprehensive participant information.
- Updated the tournament service and controller to handle the new fields when adding external participants.
- Modified frontend components to include input fields for email and address, improving user experience and data collection.
- Updated localization strings to support the new fields, ensuring clarity in the user interface.

backend/controllers/tournamentController.js

@@ -545,9 +545,9 @@ export const setMatchActive = async (req, res) => {
 // Externe Teilnehmer hinzufügen
 export const addExternalParticipant = async (req, res) => {
     const { authcode: token } = req.headers;
-    const { clubId, tournamentId, classId, firstName, lastName, club, birthDate, gender } = req.body;
+    const { clubId, tournamentId, classId, firstName, lastName, club, birthDate, gender, email, address } = req.body;
     try {
-        await tournamentService.addExternalParticipant(token, clubId, classId, firstName, lastName, club, birthDate, gender);
+        await tournamentService.addExternalParticipant(token, clubId, classId, firstName, lastName, club, birthDate, gender, email, address);
         emitTournamentChanged(clubId, tournamentId);
         res.status(200).json({ message: 'Externer Teilnehmer hinzugefügt' });
     } catch (error) {

backend/migrations/20260130_add_email_address_to_external_participant.sql

@@ -0,0 +1,6 @@
+-- E-Mail und Adresse für externe Teilnehmer (für Weitermeldung)
+-- Die Felder werden verschlüsselt gespeichert (siehe Model)
+
+ALTER TABLE `external_tournament_participant`
+  ADD COLUMN `email` VARCHAR(500) NULL AFTER `club`,
+  ADD COLUMN `address` TEXT NULL AFTER `email`;

backend/models/ExternalTournamentParticipant.js

@@ -53,6 +53,40 @@ const ExternalTournamentParticipant = sequelize.define('ExternalTournamentPartic
             return decryptData(encryptedValue);
         }
     },
+    email: {
+        type: DataTypes.STRING(500),
+        allowNull: true,
+        set(value) {
+            if (!value) {
+                this.setDataValue('email', null);
+                return;
+            }
+            const encryptedValue = encryptData(value);
+            this.setDataValue('email', encryptedValue);
+        },
+        get() {
+            const encryptedValue = this.getDataValue('email');
+            if (!encryptedValue) return null;
+            return decryptData(encryptedValue);
+        }
+    },
+    address: {
+        type: DataTypes.TEXT,
+        allowNull: true,
+        set(value) {
+            if (!value) {
+                this.setDataValue('address', null);
+                return;
+            }
+            const encryptedValue = encryptData(value);
+            this.setDataValue('address', encryptedValue);
+        },
+        get() {
+            const encryptedValue = this.getDataValue('address');
+            if (!encryptedValue) return null;
+            return decryptData(encryptedValue);
+        }
+    },
     birthDate: {
         type: DataTypes.STRING,
         allowNull: true,

backend/services/tournamentService.js

@@ -3369,7 +3369,7 @@ Ve    // 2. Neues Turnier anlegen
     }
 
     // Externe Teilnehmer hinzufügen
-    async addExternalParticipant(userToken, clubId, classId, firstName, lastName, club, birthDate, gender) {
+    async addExternalParticipant(userToken, clubId, classId, firstName, lastName, club, birthDate, gender, email = null, address = null) {
         await checkAccess(userToken, clubId);
         if (!classId) {
             throw new Error('Klasse ist erforderlich');
@@ -3432,6 +3432,8 @@ Ve    // 2. Neues Turnier anlegen
             firstName,
             lastName,
             club: club || null,
+            email: email || null,
+            address: address || null,
             birthDate: birthDate || null,
             gender: participantGender,
             groupId: null