diff --git a/backend/migrations/2025_11_10_021005_create_users_table.php b/backend/migrations/2025_11_10_021005_create_users_table.php
index 2f2009b..5428865 100644
--- a/backend/migrations/2025_11_10_021005_create_users_table.php
+++ b/backend/migrations/2025_11_10_021005_create_users_table.php
@@ -16,15 +16,17 @@ return new class extends Migration
             $table->string('username', 100)->unique()->comment('用户名');
             $table->string('password')->comment('密码');
             $table->string('email', 100)->unique()->comment('邮箱');
-            $table->tinyInteger('status')->default(1)->comment('状态：0=禁用，1=启用');
+            $table->tinyInteger('status')->default(1)->comment('状态：-1 软删除，0=禁用，1=启用');
+            $table->unsignedBigInteger('role_id')->nullable()->comment('角色ID');
             $table->text('ext')->nullable()->comment('扩展信息（JSON格式）');
             $table->string('refresh_token', 500)->nullable()->comment('刷新令牌');
-            $table->timestamp('refresh_token_expires_at')->nullable()->comment('刷新令牌过期时间');
-            $table->datetimes();
+            $table->timestampTz('refresh_token_expires_at')->nullable()->comment('刷新令牌过期时间');
+            $table->timestampsTz();
 
             $table->index('username');
             $table->index('email');
             $table->index('status');
+            $table->index('role_id');
         });
     }
 
diff --git a/backend/migrations/2025_11_10_073400_create_companies_table.php b/backend/migrations/2025_11_10_073400_create_companies_table.php
index 7756808..361e033 100644
--- a/backend/migrations/2025_11_10_073400_create_companies_table.php
+++ b/backend/migrations/2025_11_10_073400_create_companies_table.php
@@ -17,7 +17,7 @@ return new class extends Migration
             $table->string('label')->nullable()->default('null')->comment('公司名 中文');
             $table->boolean('enabled')->default('true')->comment('激活状态');
             $table->text('ext')->default('null')->comment('额外信息');
-            $table->datetimes();
+            $table->timestampsTz();
         });
     }