feat: 移除公开触发AI分析接口，仅管理面板可用

backend/routes/ai_analysis.py

@@ -93,16 +93,6 @@ async def check_report(trade_date: str):
     return JSONResponse({"data": {"hasReport": has, "tradeDate": trade_date}})
 
 
-@router.post("/ai-analysis/trigger", summary="手动触发今日 AI 分析")
-async def trigger_analysis():
-    now = datetime.now(_CST)
-    trade_date = now.strftime("%Y-%m-%d")
-
-    from services.ai_service import collect_ai_analysis
-    result = await collect_ai_analysis(trade_date)
-    return JSONResponse({"data": result})
-
-
 @router.post("/ai-analysis/{report_id}/regenerate", summary="重新生成 AI 分析报告")
 async def regenerate_report(report_id: int):
     conn = get_connection()