初始化仓库及v1.0.0提交

app/Models/User.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace App\Models;
+
+use App\Config\Database;
+
+class User
+{
+    public static function findByUsername(string $username): ?array
+    {
+        $db = Database::getInstance();
+        $stmt = $db->prepare('SELECT * FROM users WHERE username = :username');
+        $stmt->execute(['username' => $username]);
+        $result = $stmt->fetch();
+        return $result ?: null;
+    }
+
+    public static function findById(int $id): ?array
+    {
+        $db = Database::getInstance();
+        $stmt = $db->prepare('SELECT * FROM users WHERE id = :id');
+        $stmt->execute(['id' => $id]);
+        $result = $stmt->fetch();
+        return $result ?: null;
+    }
+
+    public static function create(array $data): array
+    {
+        $db = Database::getInstance();
+        $stmt = $db->prepare('INSERT INTO users (username, password_hash, role) VALUES (:username, :password_hash, :role)');
+        $stmt->execute([
+            'username' => $data['username'],
+            'password_hash' => password_hash($data['password'], PASSWORD_DEFAULT),
+            'role' => $data['role'] ?? 'user',
+        ]);
+
+        $user = self::findById((int) $db->lastInsertId());
+        unset($user['password_hash']);
+        return $user;
+    }
+
+    public static function verifyPassword(string $username, string $password): bool
+    {
+        $db = Database::getInstance();
+        $stmt = $db->prepare('SELECT password_hash FROM users WHERE username = :username');
+        $stmt->execute(['username' => $username]);
+        $result = $stmt->fetch();
+
+        if (!$result) {
+            return false;
+        }
+
+        return password_verify($password, $result['password_hash']);
+    }
+}