移除旧版用户兼容

src/app/api/auth/oidc/callback/route.ts

@@ -202,12 +202,11 @@ export async function GET(request: NextRequest) {
     }
 
     // 检查用户是否已存在(通过OIDC sub查找)
-    // 优先使用新版本查找
-    let username = await db.getUserByOidcSub(oidcSub);
+    const username = await db.getUserByOidcSub(oidcSub);
     let userRole: 'owner' | 'admin' | 'user' = 'user';
 
     if (username) {
-      // 从新版本获取用户信息
+      // 获取用户信息
       const userInfoV2 = await db.getUserInfoV2(username);
       if (userInfoV2) {
         userRole = userInfoV2.role;
@@ -218,19 +217,6 @@ export async function GET(request: NextRequest) {
           );
         }
       }
-    } else {
-      // 回退到配置中查找
-      const existingUser = config.UserConfig.Users.find((u: any) => u.oidcSub === oidcSub);
-      if (existingUser) {
-        username = existingUser.username;
-        userRole = existingUser.role || 'user';
-        // 检查用户是否被封禁
-        if (existingUser.banned) {
-          return NextResponse.redirect(
-            new URL('/login?error=' + encodeURIComponent('用户被封禁'), origin)
-          );
-        }
-      }
     }
 
     if (username) {

src/app/api/auth/oidc/complete-register/route.ts

@@ -176,7 +176,7 @@ export async function POST(request: NextRequest) {
       );
     }
 
-    // 检查用户名是否已存在（优先使用新版本）
+    // 检查用户名是否已存在
     const userExists = await db.checkUserExistV2(username);
     if (userExists) {
       return NextResponse.json(
@@ -185,24 +185,8 @@ export async function POST(request: NextRequest) {
       );
     }
 
-    // 检查配置中是否已存在
-    const existingUser = config.UserConfig.Users.find((u) => u.username === username);
-    if (existingUser) {
-      return NextResponse.json(
-        { error: '用户名已存在' },
-        { status: 409 }
-      );
-    }
-
-    // 检查OIDC sub是否已被使用（优先使用新版本）
-    let existingOIDCUsername = await db.getUserByOidcSub(oidcSession.sub);
-    if (!existingOIDCUsername) {
-      // 回退到配置中查找
-      const existingOIDCUser = config.UserConfig.Users.find((u: any) => u.oidcSub === oidcSession.sub);
-      if (existingOIDCUser) {
-        existingOIDCUsername = existingOIDCUser.username;
-      }
-    }
+    // 检查OIDC sub是否已被使用
+    const existingOIDCUsername = await db.getUserByOidcSub(oidcSession.sub);
     if (existingOIDCUsername) {
       return NextResponse.json(
         { error: '该OIDC账号已被注册' },