feat: tournaments hub — full tab with filters, registration, match launch

Replace shop tab with tournaments hub. Players can browse all tournaments,
filter by status, register, and launch pending matches directly from the hub.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

api/tournaments.php

@@ -18,9 +18,9 @@ if ($method === 'GET') {
 
     if ($action === 'list') {
         $tournaments = $db->get('el3ab_tournaments', [
-            'select' => 'id,name,game_key,format,time_control,status,max_players,starts_at,ends_at,prize_pool,entry_fee',
-            'order' => 'starts_at.desc',
-            'limit' => 20
+            'select' => 'id,name,game_key,format,time_control,status,max_players,swiss_rounds,starts_at,ends_at,prize_pool_coins,entry_fee_coins',
+            'order' => 'created_at.desc',
+            'limit' => 50
         ]);
 
         if (!is_array($tournaments) || isset($tournaments['error'])) {
@@ -48,6 +48,17 @@ if ($method === 'GET') {
 
         jsonResponse($tournament);
     }
+
+    if ($action === 'my-registrations') {
+        $token = requireAuth();
+        $userId = getUserId($token);
+        $regs = $db->get('tournament_registrations', [
+            'player_id' => 'eq.' . $userId,
+            'status' => 'eq.registered',
+            'select' => 'tournament_id'
+        ]);
+        jsonResponse(['registrations' => is_array($regs) && !isset($regs['error']) ? $regs : []]);
+    }
 }
 
 if ($method === 'POST') {

public/js/core/hud.js

@@ -151,17 +151,17 @@ function formatNum(n) {
 }
 
 function updateTournamentBadge(pending) {
-  const rankTab = tabBar?.querySelector('[data-world="rank"]');
-  if (!rankTab) return;
-  let badge = rankTab.querySelector('.tour-badge');
+  const tourTab = tabBar?.querySelector('[data-world="tournaments"]');
+  if (!tourTab) return;
+  let badge = tourTab.querySelector('.tour-badge');
   const count = Array.isArray(pending) ? pending.length : 0;
   if (count > 0) {
     if (!badge) {
       badge = document.createElement('div');
       badge.className = 'tour-badge';
       badge.style.cssText = 'position:absolute;top:2px;right:8px;width:8px;height:8px;background:#E4AC38;border-radius:50%;';
-      rankTab.style.position = 'relative';
-      rankTab.appendChild(badge);
+      tourTab.style.position = 'relative';
+      tourTab.appendChild(badge);
     }
   } else if (badge) {
     badge.remove();

public/js/modules/rank/mod.js

 import * as scene from '../../core/scene.js';
 import { mountLeaderboard } from './scenes/leaderboard.js';
-import { mountTournaments } from './scenes/tournaments.js';
-import { mountTournamentDetail } from './scenes/tournament-detail.js';
-import { mountTournamentBracket } from './scenes/tournament-bracket.js';
-import { mountTournamentArena } from './scenes/tournament-arena.js';
-import { mountTournamentLobby } from './scenes/tournament-lobby.js';
-import { mountTournamentLive } from './scenes/tournament-live.js';
 
 scene.register('leaderboard', mountLeaderboard);
-scene.register('tournaments', mountTournaments);
-scene.register('tournament-detail', mountTournamentDetail);
-scene.register('tournament-bracket', mountTournamentBracket);
-scene.register('tournament-arena', mountTournamentArena);
-scene.register('tournament-lobby', mountTournamentLobby);
-scene.register('tournament-live', mountTournamentLive);

public/js/modules/tournaments/scenes/arena.js

+export { mountTournamentArena } from '../../rank/scenes/tournament-arena.js';

public/js/modules/tournaments/scenes/bracket.js

+export { mountTournamentBracket } from '../../rank/scenes/tournament-bracket.js';

public/js/modules/tournaments/scenes/detail.js

+export { mountTournamentDetail } from '../../rank/scenes/tournament-detail.js';

public/js/modules/tournaments/scenes/live.js

+export { mountTournamentLive } from '../../rank/scenes/tournament-live.js';

public/js/modules/tournaments/scenes/lobby.js

+export { mountTournamentLobby } from '../../rank/scenes/tournament-lobby.js';