fix: 修复图片显示问题，添加whitenoise优化静态文件性能

backend/config/settings.py

@@ -58,6 +58,7 @@ INSTALLED_APPS = [
 MIDDLEWARE = [
     'corsheaders.middleware.CorsMiddleware',
     'django.middleware.security.SecurityMiddleware',
+    'whitenoise.middleware.WhiteNoiseMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',
     'django.middleware.common.CommonMiddleware',
     'django.middleware.csrf.CsrfViewMiddleware',
@@ -173,6 +174,15 @@ STATICFILES_DIRS = [
     BASE_DIR / 'static',
 ]
 
+STORAGES = {
+    "default": {
+        "BACKEND": "django.core.files.storage.FileSystemStorage",
+    },
+    "staticfiles": {
+        "BACKEND": "whitenoise.storage.CompressedManifestStaticFilesStorage",
+    },
+}
+
 # 媒体文件配置
 MEDIA_URL = '/media/'
 MEDIA_ROOT = BASE_DIR / 'media'