fix(config): disable default wallpaper

app/application/configuration.py

@@ -270,7 +270,7 @@ class ChainRuntimeConfig:
     television_rename_format: str = ""
     music_rename_format: str = ""
     tmdb_image_domain: str = "image.tmdb.org"
-    wallpaper: str = "bing"
+    wallpaper: str = ""
     wallpaper_image_url: Optional[str] = None
     customize_wallpaper_api_url: Optional[str] = None
     security_image_suffixes: tuple[str, ...] = ()

app/runtime/config.py

@@ -668,8 +668,8 @@ class ConfigModel(BaseModel):
     MEDIA_RECOGNIZE_SHARE_API: Optional[str] = None
 
     # ==================== 个性化 ====================
-    # 登录页面壁纸来源：tmdb/bing/mediaserver/customize/static
-    WALLPAPER: str = "tmdb"
+    # 登录页面壁纸来源：空字符串表示无壁纸，另支持 tmdb/bing/mediaserver/customize/static
+    WALLPAPER: str = ""
     # 壁纸轮换间隔（秒），0 表示不轮换
     WALLPAPER_ROTATION_INTERVAL: int = 15
     # 静态壁纸地址，可使用前端可访问的本地路径或 URL

tests/test_wallpaper_service.py

@@ -5,6 +5,7 @@ from typing import Any, Optional
 
 import app.application.image as image_service
 from app.api.endpoints import system as system_endpoint
+from app.application.configuration import ChainRuntimeConfig
 from app.application.image import (
     ImageHelper,
     ImageResponsePort,
@@ -133,7 +134,9 @@ def test_static_wallpaper_returns_local_or_remote_address_directly(monkeypatch):
 
 
 def test_wallpaper_settings_define_backward_compatible_defaults():
-    """未配置新字段时维持 15 秒轮换，静态地址保持为空。"""
+    """未配置壁纸时保持无壁纸，轮换间隔和静态地址沿用兼容默认值。"""
+    assert ConfigModel.model_fields["WALLPAPER"].default == ""
+    assert ChainRuntimeConfig(media_extensions=()).wallpaper == ""
     assert ConfigModel.model_fields["WALLPAPER_ROTATION_INTERVAL"].default == 15
     assert ConfigModel.model_fields["WALLPAPER_IMAGE_URL"].default is None