diff --git a/apps/backend/schemas/task.py b/apps/backend/schemas/task.py
index f9797dc..1a8d457 100644
--- a/apps/backend/schemas/task.py
+++ b/apps/backend/schemas/task.py
@@ -1,6 +1,6 @@
 from datetime import datetime
 from typing import Optional
-from pydantic import BaseModel, Field, field_validator
+from pydantic import BaseModel, ConfigDict, Field, field_validator
 
 
 class TaskBase(BaseModel):
@@ -132,6 +132,8 @@ class TaskUpdate(BaseModel):
 class TaskResponse(TaskBase):
     """打卡任务响应 Schema"""
 
+    model_config = ConfigDict(from_attributes=True)
+
     id: int
     user_id: int
     created_at: datetime
@@ -145,6 +147,3 @@ class TaskResponse(TaskBase):
     last_check_in_time: Optional[datetime] = Field(None, description="最后一次打卡时间")
     last_check_in_status: Optional[str] = Field(None, description="最后一次打卡状态")
     thread_id: Optional[str] = Field(None, description="接龙 ID（从 payload_config 中提取）")
-
-    class Config:
-        from_attributes = True
diff --git a/apps/backend/schemas/template.py b/apps/backend/schemas/template.py
index bd759cd..8a22291 100644
--- a/apps/backend/schemas/template.py
+++ b/apps/backend/schemas/template.py
@@ -1,6 +1,6 @@
 from datetime import datetime
 from typing import Optional, Dict, Any, List, Union
-from pydantic import BaseModel, Field, field_validator
+from pydantic import BaseModel, ConfigDict, Field, field_validator
 import json
 
 
@@ -43,10 +43,7 @@ class FieldConfigItem(BaseModel):
 class FieldConfigValues(BaseModel):
     """Values 字段的嵌套配置（如 location, temperature 等）"""
 
-    pass
-
-    class Config:
-        extra = "allow"  # 允许任意字段
+    model_config = ConfigDict(extra="allow")
 
 
 class FieldConfig(BaseModel):
@@ -128,6 +125,8 @@ class TemplateUpdate(BaseModel):
 class TemplateResponse(BaseModel):
     """模板响应 Schema"""
 
+    model_config = ConfigDict(from_attributes=True)
+
     id: int
     name: str
     description: Optional[str]
@@ -137,9 +136,6 @@ class TemplateResponse(BaseModel):
     created_at: datetime
     updated_at: Optional[datetime]
 
-    class Config:
-        from_attributes = True
-
 
 class TaskFromTemplateRequest(BaseModel):
     """从模板创建任务的请求 Schema"""
diff --git a/apps/backend/schemas/user.py b/apps/backend/schemas/user.py
index 2d9093e..5d211d7 100644
--- a/apps/backend/schemas/user.py
+++ b/apps/backend/schemas/user.py
@@ -1,6 +1,6 @@
 from datetime import datetime
 from typing import Optional
-from pydantic import BaseModel, Field, EmailStr
+from pydantic import BaseModel, ConfigDict, EmailStr, Field
 
 
 class UserBase(BaseModel):
@@ -45,6 +45,8 @@ class UserUpdateProfile(BaseModel):
 class UserResponse(BaseModel):
     """用户响应 Schema"""
 
+    model_config = ConfigDict(from_attributes=True)
+
     id: int
     alias: str
     role: str
@@ -55,9 +57,6 @@ class UserResponse(BaseModel):
     created_at: datetime
     updated_at: Optional[datetime] = None
 
-    class Config:
-        from_attributes = True
-
 
 class UserWithToken(UserResponse):
     """带 Token 的用户响应 Schema"""
diff --git a/tests/test_new_frontend_architecture.py b/tests/test_frontend_architecture.py
similarity index 77%
rename from tests/test_new_frontend_architecture.py
rename to tests/test_frontend_architecture.py
index a53a12b..ad28fb8 100644
--- a/tests/test_new_frontend_architecture.py
+++ b/tests/test_frontend_architecture.py
@@ -3,11 +3,11 @@ from __future__ import annotations
 from pathlib import Path
 
 
-FRONTEND_ROOT = Path(__file__).resolve().parents[1] / "apps" / "new-frontend"
+FRONTEND_ROOT = Path(__file__).resolve().parents[1] / "apps" / "frontend"
 SRC_ROOT = FRONTEND_ROOT / "src"
 
 
-def test_new_frontend_has_business_app_structure() -> None:
+def test_frontend_has_business_app_structure() -> None:
     expected_files = [
         "api/client.ts",
         "api/index.ts",
@@ -37,7 +37,7 @@ def test_new_frontend_has_business_app_structure() -> None:
     assert missing == []
 
 
-def test_new_frontend_routes_cover_user_and_admin_workflows() -> None:
+def test_frontend_routes_cover_user_and_admin_workflows() -> None:
     router = (SRC_ROOT / "app" / "router.ts").read_text(encoding="utf-8")
 
     for path in [
@@ -57,15 +57,8 @@ def test_new_frontend_routes_cover_user_and_admin_workflows() -> None:
         assert path in router
 
 
-def test_new_frontend_replaces_starter_component() -> None:
+def test_frontend_replaces_starter_component() -> None:
     app = (SRC_ROOT / "App.vue").read_text(encoding="utf-8")
 
     assert "HelloWorld" not in app
     assert not (SRC_ROOT / "components" / "HelloWorld.vue").exists()
-
-
-def test_theme_switch_is_icon_only_but_accessible() -> None:
-    layout = (SRC_ROOT / "components" / "AppLayout.vue").read_text(encoding="utf-8")
-
-    assert "切换主题，当前${themeLabel}" in layout
-    assert "{{ themeLabel }}" not in layout