feat(tournament): implement class merging and pool management features

- Added mergeClassesIntoPool and resetPool functions in tournamentService to handle merging classes into a common pool and resetting pool assignments.
- Introduced new API routes for merging and resetting pools in tournamentRoutes.
- Enhanced TournamentGroupsTab component with UI for merging classes, including selection for source and target classes, strategy options, and out-of-competition settings.
- Updated localization files to include new strings related to class merging functionality.
- Modified TournamentTab to handle merge pool events and manage API interactions for merging classes.

backend/models/ExternalTournamentParticipant.js

@@ -83,6 +83,11 @@ const ExternalTournamentParticipant = sequelize.define('ExternalTournamentPartic
     classId: {
         type: DataTypes.INTEGER,
         allowNull: true
+    },
+    outOfCompetition: {
+        type: DataTypes.BOOLEAN,
+        allowNull: false,
+        defaultValue: false
     }
 }, {
     underscored: true,

backend/models/TournamentGroup.js

@@ -20,6 +20,10 @@ const TournamentGroup = sequelize.define('TournamentGroup', {
         type: DataTypes.INTEGER,
         allowNull: true
     },
+    poolId: {
+        type: DataTypes.INTEGER,
+        allowNull: true
+    },
   }, {
   underscored: true,
   tableName: 'tournament_group',

backend/models/TournamentMember.js

@@ -25,6 +25,11 @@ const TournamentMember = sequelize.define('TournamentMember', {
     classId: {
         type: DataTypes.INTEGER,
         allowNull: true
+    },
+    outOfCompetition: {
+        type: DataTypes.BOOLEAN,
+        allowNull: false,
+        defaultValue: false
     }
   }, {
   underscored: true,