Fix TypeScript errors: Update User type system across all storage implementations

src/lib/upstash.db.ts

@@ -3,7 +3,7 @@
 import { Redis } from '@upstash/redis';
 
 import { AdminConfig } from './admin.types';
-import { EpisodeSkipConfig, Favorite, IStorage, PlayRecord, UserSettings } from './types';
+import { EpisodeSkipConfig, Favorite, IStorage, PlayRecord, User, UserSettings } from './types';
 
 // 搜索历史最大条数
 const SEARCH_HISTORY_LIMIT = 20;
@@ -244,14 +244,41 @@ export class UpstashRedisStorage implements IStorage {
   }
 
   // ---------- 获取全部用户 ----------
-  async getAllUsers(): Promise<string[]> {
+  async getAllUsers(): Promise<User[]> {
     const keys = await withRetry(() => this.client.keys('u:*:pwd'));
-    return keys
+    const ownerUsername = process.env.USERNAME || 'admin';
+    
+    const usernames = keys
       .map((k) => {
         const match = k.match(/^u:(.+?):pwd$/);
         return match ? ensureString(match[1]) : undefined;
       })
       .filter((u): u is string => typeof u === 'string');
+
+    // 获取用户创建时间并构造 User 对象
+    const users = await Promise.all(
+      usernames.map(async (username) => {
+        // 尝试获取用户创建时间，如果没有则使用空字符串
+        const createdAtKey = `u:${username}:created_at`;
+        let created_at = '';
+        try {
+          const timestamp = await withRetry(() => this.client.get(createdAtKey));
+          if (timestamp && typeof timestamp === 'number') {
+            created_at = new Date(timestamp).toISOString();
+          }
+        } catch (err) {
+          // 忽略错误，使用空字符串
+        }
+
+        return {
+          username,
+          role: username === ownerUsername ? 'owner' : 'user',
+          created_at
+        };
+      })
+    );
+
+    return users;
   }
 
   // ---------- 管理员配置 ----------