feat: 前后台静态资源路径冲突修复 + 用户管理功能

- 修改 admin/vite.config.js 添加 base: '/admin/' 解决静态资源路径问题
- 修复后台 index.html 资源引用从 /assets/ → /admin/assets/
- 更新优化器默认 API 地址为服务器地址
- 添加友链管理相关代码
- 修复多处分类管理页面

api/app/schemas/joke.py

@@ -18,6 +18,8 @@ class JokeUpdate(BaseModel):
     title: str | None = None
     content: str | None = None
     polished_content: str | None = None
+    ai_score: float | None = None
+    ai_level: str | None = None
     type_ids: list[int] | None = None
     crowd_ids: list[int] | None = None
     status: str | None = None
@@ -27,6 +29,9 @@ class JokeResponse(JokeBase):
     id: int
     status: str
     polished_content: str | None = None
+    # AI 评价字段
+    ai_score: float | None = None
+    ai_level: str | None = None
     view_count: int
     like_count: int
     created_at: datetime
@@ -37,6 +42,21 @@ class JokeResponse(JokeBase):
     class Config:
         from_attributes = True
 
+    @property
+    def display_content(self) -> str:
+        """优先显示润色后的内容"""
+        return self.polished_content if self.polished_content else self.content
+
+    def get_level_display(self) -> str:
+        """获取 AI 评级的中文显示"""
+        level_map = {
+            'excellent': '⭐⭐⭐ 精品',
+            'good': '⭐⭐ 良好',
+            'ordinary': '⭐ 普通',
+            'poor': '⚠️ 待优化'
+        }
+        return level_map.get(self.ai_level, '') if self.ai_level else ''
+
 
 class PaginatedJokeResponse(BaseModel):
     items: list[JokeResponse]