feat: cleanly add user preferences api and rollback wrong auth routes

inventory-backend/app/__init__.py

@@ -42,6 +42,16 @@ def create_app():
     except ImportError as e:
         print(f"❌ 错误: Auth 模块导入失败: {e}")
 
+    # -----------------------------------------------------
+    # 2.0.1 注册用户偏好模块 (User Preferences)
+    # -----------------------------------------------------
+    try:
+        from app.api.v1.user import user_prefs_bp
+        app.register_blueprint(user_prefs_bp, url_prefix='/api/v1/user')
+        print("✅ User Preferences 模块注册成功")
+    except ImportError as e:
+        print(f"❌ 错误: User Preferences 模块导入失败: {e}")
+
     # -----------------------------------------------------
     # 2.1 注册入库聚合模块 (Inbound)
     # -----------------------------------------------------