fix(P1-C): 公开预测仅 live+success,且不含 reasoning/agent_outputs

GET /matches/{id}:查询加 WHERE run_type='live' AND status='success';
recent_predictions 不再输出 reasoning/agent_outputs(避免泄露内部推理)。
MatchOut.recent_predictions schema 放宽为 list[dict]。

测试 test_p1_c_public_predictions(2/2);全量 309 通过。

src/api/routes/matches.py

@@ -169,15 +169,28 @@ async def get_match(match_id: int, db: AsyncSession = Depends(get_db_read)):
     m = (await db.execute(stmt)).scalar_one_or_none()
     if m is None:
         raise HTTPException(404, "match not found")
-    # 最近预测(倒序,最多 5 条)——复用 PredictionOut 结构,只读,不触发 LLM
+    # P1-C: 公开预测仅 run_type=live 且 status=success(屏蔽回测/失败预测)
     preds = (
         await db.execute(
             select(Prediction)
             .where(Prediction.match_id == match_id)
+            .where(Prediction.run_type == "live")
+            .where(Prediction.status == "success")
             .order_by(Prediction.created_at.desc())
             .limit(5)
         )
     ).scalars().all()
+    # P1-C: 公开接口的预测不含 reasoning/agent_outputs(避免泄露内部推理细节)
+    recent_predictions = [
+        {
+            "id": p.id, "match_id": p.match_id, "provider": p.provider, "model": p.model,
+            "prompt_version": p.prompt_version, "mode": p.mode or "single",
+            "pred_home_goals": p.pred_home_goals, "pred_away_goals": p.pred_away_goals,
+            "pred_1x2": p.pred_1x2, "subjective_confidence": p.subjective_confidence,
+            "created_at": p.created_at.isoformat() if p.created_at else None,
+        }
+        for p in preds
+    ]
     return MatchOut(
         id=m.id,
         league_code=m.league.code if m.league else None,
@@ -194,20 +207,7 @@ async def get_match(match_id: int, db: AsyncSession = Depends(get_db_read)):
         home_xg=m.stats.home_xg if m.stats else None,
         away_xg=m.stats.away_xg if m.stats else None,
         stats=_stats_dict(m.stats) if m.stats else None,
-        recent_predictions=[
-            PredictionOut(
-                id=p.id, match_id=p.match_id, provider=p.provider, model=p.model,
-                prompt_version=p.prompt_version, mode=p.mode or "single",
-                pred_home_goals=p.pred_home_goals, pred_away_goals=p.pred_away_goals,
-                alt_pred_home_goals=p.alt_pred_home_goals, alt_pred_away_goals=p.alt_pred_away_goals,
-                pred_1x2=p.pred_1x2, subjective_confidence=p.subjective_confidence,
-                reasoning=p.reasoning, status=p.status or "success",
-                agent_outputs=p.agent_outputs, agent_weights=p.agent_weights,
-                created_at=p.created_at, actual_home_goals=p.actual_home_goals,
-                actual_away_goals=p.actual_away_goals, settled=p.settled,
-            )
-            for p in preds
-        ],
+        recent_predictions=recent_predictions,
     )