fix: 修复类型错误（任务 1.3/20）

scripts/analyze-test-coverage.ts

@@ -1,5 +1,4 @@
 import * as fs from 'fs';
-import * as path from 'path';
 
 interface TestResult {
   title: string;

src/app/api/admin/users/route.ts

@@ -57,7 +57,7 @@ export async function POST(request: NextRequest) {
         id: nanoid(),
         email,
         name,
-        password: hashedPassword,
+        passwordHash: hashedPassword,
         isAdmin: role === 'admin',
         createdAt: new Date(),
         updatedAt: new Date(),