feat(agent,report): 会话持久化与画像注入、报告反馈与预约留资——PM/开发双Agent迭代1-3

- agent: ag_conversation/ag_message 表(迁移0007),上下文组装注入最近报告画像摘要
  (report.profile.latest_profile_summary 经 apps 层闭包注入,同层不互调),历史带最近
  AGENT_HISTORY_TURNS=10 轮;POST/GET /agent/conversations 与消息历史接口
- agent 修复:ChatRequest.conversation_id 改 str(雪花ID超2^53,JS Number丢精度);
  _build_context 挪进 reserve commit 后同一 try,异常走 refund 兜底
- report: rp_feedback(维度反馈 upsert,认同率/修正率 SQL 可算,T-P3-21 最小版——
  L1 记忆未建,不回写结论)+ rp_reservation(预约留资幂等,T-P3-22,预约率口径
  行数/full_report.card_view 去重曝光,门槛≥8%),迁移0008
- 测试:全量 606 passed;ruff/mypy/lint-imports 全绿;E2E 真实 deepseek-v4-flash 验证
  画像注入与历史携带

apps/api/routers/reservations.py

@@ -0,0 +1,55 @@
+"""``POST /reservations``、``GET /reservations``（T-P3-22 预约留资）。
+
+topic 预留通用性，首期只有 full_report（全面报告上线提醒）。
+幂等口径：重复预约返回已有记录（created=false，HTTP 仍 200）。
+"""
+
+from __future__ import annotations
+
+from typing import Annotated
+
+from fastapi import APIRouter, Depends, Query
+
+from apps.api.deps import CurrentUserId, SessionDep
+from packages.report.reservation_service import ReservationService
+from packages.report.schemas import (
+    ReservationCreateRequest,
+    ReservationListResponse,
+    ReservationResponse,
+)
+from packages.shared.response import ok
+
+router = APIRouter(prefix="/reservations", tags=["reservations"])
+
+
+def reservation_service_dep(session: SessionDep) -> ReservationService:
+    return ReservationService(session)
+
+
+ReservationServiceDep = Annotated[ReservationService, Depends(reservation_service_dep)]
+
+
+@router.post("", summary="预约留资（幂等：重复预约 created=false）")
+async def create_reservation(
+    payload: ReservationCreateRequest,
+    user_id: CurrentUserId,
+    service: ReservationServiceDep,
+) -> dict[str, object]:
+    result = await service.reserve(user_id=user_id, topic=payload.topic)
+    return ok(
+        ReservationResponse(
+            topic=result.reservation.topic,
+            created=result.created,
+            created_at=result.reservation.created_at,
+        ).model_dump()
+    )
+
+
+@router.get("", summary="我的预约主题列表（topic 可选，缺省返回全部）")
+async def list_reservations(
+    user_id: CurrentUserId,
+    service: ReservationServiceDep,
+    topic: str | None = Query(default=None, max_length=32),
+) -> dict[str, object]:
+    topics = await service.list_topics(user_id=user_id, topic=topic)
+    return ok(ReservationListResponse(topics=topics).model_dump())