big update

backend/app/schemas/event_schema.py

@@ -1,23 +1,30 @@
 # app/schemas/event_schema.py
-from pydantic import BaseModel
+from pydantic import BaseModel, Field
 from typing import List, Optional
 from datetime import datetime
 
 
 class PlatformTrendResponse(BaseModel):
     source_id: int
-    platform_name: str  # 平台名称，如 "微博热搜"
-    headline: str  # 平台对应的具体热搜标题
-    url: Optional[str]  # 跳转链接
-    current_ranking: Optional[int]  # 当前排名
-    ranking_history: List[int]  # 排名历史轨迹，如 [50, 45, 20, 5, 1]，供 ApexCharts 渲染
+    platform_name: str
+    headline: str
+    url: Optional[str]
+    current_ranking: Optional[int]
+    ranking_history: List[int]
 
 
 class UnifiedEventResponse(BaseModel):
     event_id: int
-    unified_title: str  # AI 生成的统一大标题
-    summary: Optional[str]  # AI 生成的摘要
-    hot_score: int  # 总热度值
-    created_at: datetime  # 事件发现时间
-    platforms: List[PlatformTrendResponse]  # 挂载的各个平台子热搜
-    # tags: List[str] = []      # 如果后续打通了 ExtractedTopic，可以在这里返回标签
+    unified_title: str
+    summary: Optional[str]
+    hot_score: int
+    created_at: datetime
+    platforms: List[PlatformTrendResponse]
+    tags: List[str] = Field(default_factory=list)
+
+
+class PaginatedUnifiedEventResponse(BaseModel):
+    """分页包装：避免一次性返回全量数据"""
+    total: int
+    has_more: bool
+    data: List[UnifiedEventResponse]