refactor(api): standardize responses and restore media config contracts

app/schemas/search.py

@@ -0,0 +1,22 @@
+"""搜索 API 输出模型。"""
+
+from typing import Literal, Union
+
+from pydantic import BaseModel, Field
+
+from app.schemas.common import JsonData
+from app.schemas.context import SubtitleInfo, TorrentInfo
+
+
+class SearchLastContextData(BaseModel):
+    """上一次搜索的请求参数与结果。"""
+
+    params: dict[str, JsonData] = Field(default_factory=dict)
+    results: list[Union[TorrentInfo, SubtitleInfo]] = Field(default_factory=list)
+
+
+class SearchRecommendStatusData(BaseModel):
+    """AI 搜索结果推荐任务状态。"""
+
+    status: Literal["disabled", "idle", "running", "completed", "error"]
+    results: list[int] = Field(default_factory=list)