1、前台登陆的《用户协议》和《隐私政策》合并为一个文件，用户协议及隐私政策，后台系统设置上传同步更改

2、前台登陆最下方加入版权信息添加，后台系统设置同步修改

video-gen-api/app/api/v1/auth.py

@@ -304,7 +304,7 @@ async def get_site_info(db: AsyncSession = Depends(get_db)):
     """Public endpoint returning site name and logo."""
     result = await db.execute(
         select(SystemConfig).where(SystemConfig.key.in_([
-            "site_name", "site_logo", "user_agreement_url", "privacy_policy_url"
+            "site_name", "site_logo", "user_agreement_privacy_url", "site_copyright"
         ]))
     )
     configs = result.scalars().all()
@@ -324,8 +324,8 @@ async def get_site_info(db: AsyncSession = Depends(get_db)):
     return {
         "site_name": info.get("site_name", "VideoGen.AI"),
         "site_logo": to_full_url(info.get("site_logo")),
-        "user_agreement_url": to_full_url(info.get("user_agreement_url")),
-        "privacy_policy_url": to_full_url(info.get("privacy_policy_url")),
+        "user_agreement_privacy_url": to_full_url(info.get("user_agreement_privacy_url")),
+        "site_copyright": info.get("site_copyright", ""),
     }