Initial commit: Flutter app + PHP/MySQL backend on Hostinger

Replaces Firebase with a self-hosted PHP/MySQL API served from
winded.prymsolutions.com. Includes full backend (schema, auth, events,
teams, brackets, suggestions, stats, media, file upload) and updated
Flutter repositories and domain models.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

server/api/auth/me.php

@@ -0,0 +1,43 @@
+<?php
+require_once __DIR__ . '/../config/helpers.php';
+cors();
+
+if ($_SERVER['REQUEST_METHOD'] === 'PUT') {
+    $payload = require_auth();
+    $uid     = $payload['uid'];
+    $b       = body();
+
+    $fields = [];
+    $params = [];
+    foreach (['display_name', 'bio', 'photo_url', 'position'] as $f) {
+        if (array_key_exists($f, $b)) {
+            $fields[] = "$f = ?";
+            $params[]  = $b[$f];
+        }
+    }
+    if (empty($fields)) json_err('Nothing to update');
+
+    $params[] = $uid;
+    db()->prepare('UPDATE users SET ' . implode(', ', $fields) . ' WHERE id = ?')
+       ->execute($params);
+}
+
+$payload = require_auth();
+$stmt    = db()->prepare('SELECT * FROM users WHERE id = ?');
+$stmt->execute([$payload['uid']]);
+$row = $stmt->fetch();
+if (!$row) json_err('User not found', 404);
+
+$role = resolve_role($row['email'], $row['role']);
+
+json_ok([
+    'id'           => $row['id'],
+    'email'        => $row['email'],
+    'display_name' => $row['display_name'],
+    'role'         => $role,
+    'bio'          => $row['bio'],
+    'photo_url'    => $row['photo_url'],
+    'position'     => $row['position'],
+    'team_id'      => $row['team_id'],
+    'created_at'   => $row['created_at'],
+]);