修正北京时间并更换新闻候选源

app/db/repository.py

@@ -1,12 +1,12 @@
 from __future__ import annotations
 
-from datetime import datetime
 from hashlib import sha256
 from typing import Optional
 
 from sqlalchemy import select
 from sqlalchemy.orm import Session
 
+from app.core.timezone import beijing_now
 from app.db.models import AgentRun, Report, Signal, Topic
 from app.schemas.agent import SignalItem
 
@@ -23,20 +23,20 @@ class AgentRepository:
 
     def create_run(self, request_payload: dict) -> AgentRun:
         # 运行先进入running状态，情报和日报保存完成后再标记完成。
-        run = AgentRun(status="running", request_payload=request_payload)
+        run = AgentRun(status="running", started_at=beijing_now(), request_payload=request_payload)
         self.db.add(run)
         self.db.flush()
         return run
 
     def mark_run_complete(self, run: AgentRun, raw_response: dict) -> None:
         run.status = "completed"
-        run.finished_at = datetime.utcnow()
+        run.finished_at = beijing_now()
         run.raw_response = raw_response
         self.db.flush()
 
     def mark_run_failed(self, run: AgentRun, error: str) -> None:
         run.status = "failed"
-        run.finished_at = datetime.utcnow()
+        run.finished_at = beijing_now()
         run.error = error
         self.db.flush()
 
@@ -77,6 +77,7 @@ class AgentRepository:
             published_at=item.published_at,
             importance=item.importance,
             entities=item.entities,
+            created_at=beijing_now(),
         )
         self.db.add(signal)
         self.db.flush()
@@ -88,7 +89,13 @@ class AgentRepository:
 
     def save_report(self, run: AgentRun, title: str, content_md: str, file_path: str) -> Report:
         # 文件路径便于人工打开Markdown产物，MySQL保存可查询正文。
-        report = Report(run_id=run.id, title=title, content_md=content_md, file_path=file_path)
+        report = Report(
+            run_id=run.id,
+            title=title,
+            content_md=content_md,
+            file_path=file_path,
+            created_at=beijing_now(),
+        )
         self.db.add(report)
         self.db.flush()
         return report