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

migrations/versions/0007_agent_conversations.py

@@ -0,0 +1,78 @@
+"""Agent 会话与消息表（FR-AGT-09 / T-P4-01）。
+
+  ag_conversation — 会话主表；title 取首条用户消息截断，last_message_at 是
+                    列表排序与 90 天保留期清理（合规方案 §6）的时间锚点
+  ag_message      — 消息表；retrieval_trace / rule_hits 是「每条回答可复盘」
+                    的锚点，检索步骤（架构 §7.2 ④）落地前留空；assistant 行
+                    以 call_id 关联 ob_ai_call，回复可一路追到成本账本
+
+Reversible: 是。
+"""
+
+from __future__ import annotations
+
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.dialects import postgresql
+
+revision: str = "0007"
+down_revision: str | None = "0006"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "ag_conversation",
+        sa.Column("conversation_id", sa.BigInteger(), nullable=False),
+        sa.Column("user_id", sa.BigInteger(), nullable=False),
+        sa.Column("title", sa.String(length=64), nullable=False, server_default=sa.text("''")),
+        sa.Column("message_count", sa.Integer(), nullable=False, server_default=sa.text("0")),
+        sa.Column("last_message_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column(
+            "created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()
+        ),
+        sa.PrimaryKeyConstraint("conversation_id"),
+    )
+    op.create_index(
+        "ix_ag_conversation_user_active", "ag_conversation", ["user_id", "last_message_at"]
+    )
+
+    op.create_table(
+        "ag_message",
+        sa.Column("message_id", sa.BigInteger(), nullable=False),
+        sa.Column("conversation_id", sa.BigInteger(), nullable=False),
+        sa.Column("user_id", sa.BigInteger(), nullable=False),
+        sa.Column("role", sa.String(length=16), nullable=False),
+        sa.Column("content", sa.Text(), nullable=False),
+        sa.Column("call_id", sa.BigInteger(), nullable=True),
+        sa.Column("model", sa.String(length=64), nullable=True),
+        sa.Column("tokens_in", sa.Integer(), nullable=True),
+        sa.Column("tokens_out", sa.Integer(), nullable=True),
+        sa.Column("tokens_cached", sa.Integer(), nullable=True),
+        sa.Column("latency_ms", sa.Integer(), nullable=True),
+        sa.Column("cost_cents", sa.Numeric(14, 6), nullable=True),
+        sa.Column("retrieval_trace", postgresql.JSONB(), nullable=False),
+        sa.Column("rule_hits", postgresql.JSONB(), nullable=False),
+        sa.Column(
+            "created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()
+        ),
+        sa.PrimaryKeyConstraint("message_id"),
+        sa.ForeignKeyConstraint(
+            ["conversation_id"], ["ag_conversation.conversation_id"], ondelete="CASCADE"
+        ),
+    )
+    op.create_index(
+        "ix_ag_message_conversation_created", "ag_message", ["conversation_id", "created_at"]
+    )
+    op.create_index("ix_ag_message_user_created", "ag_message", ["user_id", "created_at"])
+
+
+def downgrade() -> None:
+    op.drop_index("ix_ag_message_user_created", table_name="ag_message")
+    op.drop_index("ix_ag_message_conversation_created", table_name="ag_message")
+    op.drop_table("ag_message")
+    op.drop_index("ix_ag_conversation_user_active", table_name="ag_conversation")
+    op.drop_table("ag_conversation")

migrations/versions/0008_report_feedback.py

@@ -0,0 +1,68 @@
+"""报告结论反馈 + 全面报告预约留资（T-P3-21 最小可用版 / T-P3-22）。
+
+  rp_feedback    — 维度级结论反馈（准/不准 + 可选修正文本）；
+                   UniqueConstraint(report_id, dimension_key) 承载 upsert 语义：
+                   同维度重复反馈 = 覆盖更新，不是堆行。
+                   有意裁剪（T-P3-21 原文的「修正后置信度置 1.0 并即时写 L1 记忆」）：
+                   L1 记忆系统未建，本迭代只落表，保证认同率/修正率两项指标
+                   可从 SQL 直接算出，不回写报告结论。
+  rp_reservation — 预约留资；topic 预留通用性（首期只有 full_report）。
+                   UniqueConstraint(user_id, topic) 承载幂等：重复预约返回已有
+                   记录（created=false），不堆行。
+                   指标口径：预约率 = rp_reservation(topic='full_report') 行数 ÷
+                   埋点 full_report.card_view 去重曝光数；决策门槛 ≥8%
+                   （产品方案 §2.2.3）。
+
+Reversible: 是。
+"""
+
+from __future__ import annotations
+
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0008"
+down_revision: str | None = "0007"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "rp_feedback",
+        sa.Column("feedback_id", sa.BigInteger(), nullable=False),
+        sa.Column("report_id", sa.BigInteger(), nullable=False),
+        sa.Column("user_id", sa.BigInteger(), nullable=False),
+        sa.Column("dimension_key", sa.String(length=64), nullable=False),
+        sa.Column("verdict", sa.String(length=16), nullable=False),
+        sa.Column("correction", sa.Text(), nullable=True),
+        sa.Column(
+            "created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()
+        ),
+        sa.Column(
+            "updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()
+        ),
+        sa.PrimaryKeyConstraint("feedback_id"),
+        sa.UniqueConstraint("report_id", "dimension_key", name="uq_rp_feedback_report_dimension"),
+    )
+    op.create_index("ix_rp_feedback_user_created", "rp_feedback", ["user_id", "created_at"])
+
+    op.create_table(
+        "rp_reservation",
+        sa.Column("reservation_id", sa.BigInteger(), nullable=False),
+        sa.Column("user_id", sa.BigInteger(), nullable=False),
+        sa.Column("topic", sa.String(length=32), nullable=False),
+        sa.Column(
+            "created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()
+        ),
+        sa.PrimaryKeyConstraint("reservation_id"),
+        sa.UniqueConstraint("user_id", "topic", name="uq_rp_reservation_user_topic"),
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("rp_reservation")
+    op.drop_index("ix_rp_feedback_user_created", table_name="rp_feedback")
+    op.drop_table("rp_feedback")