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

tests/unit/test_report_profile.py

@@ -0,0 +1,83 @@
+"""report.profile.latest_profile_summary：repo 打桩，验证摘要选取纪律。"""
+
+from __future__ import annotations
+
+import json
+from types import SimpleNamespace
+from typing import Any
+
+import pytest
+
+from packages.report import repo
+from packages.report.profile import latest_profile_summary
+
+_DIAGNOSIS = {
+    "dimensions": [
+        {
+            "key": "body_shape",
+            "label": "体型",
+            "status": "ok",
+            "value": "梨形",
+            "confidence": 0.9,
+            "evidence": ["问卷自报肩窄胯宽"],
+        },
+        {"key": "style_impression", "status": "skipped", "value": None},
+    ],
+    "rule_hits": [
+        {"rule_key": "pear_lower_dark", "dimension": "body_shape", "suggestion": "下装选深色"}
+    ],
+}
+
+
+def _report(report_id: int, *, status: str, result: dict[str, Any]) -> Any:
+    return SimpleNamespace(report_id=report_id, status=status, result=result)
+
+
+@pytest.fixture
+def stub_list(monkeypatch: pytest.MonkeyPatch) -> dict[str, Any]:
+    state: dict[str, Any] = {"reports": []}
+
+    async def fake_list(session: Any, *, user_id: int, limit: int = 20) -> list[Any]:
+        state["limit"] = limit
+        return state["reports"]
+
+    monkeypatch.setattr(repo, "list_reports", fake_list)
+    return state
+
+
+class TestLatestProfileSummary:
+    async def test_no_reports_returns_none(self, stub_list: dict[str, Any]) -> None:
+        assert await latest_profile_summary(None, user_id=1, max_chars=800) is None  # type: ignore[arg-type]
+
+    async def test_succeeded_report_with_diagnosis(self, stub_list: dict[str, Any]) -> None:
+        stub_list["reports"] = [_report(1, status="succeeded", result={"diagnosis": _DIAGNOSIS})]
+        summary = await latest_profile_summary(None, user_id=1, max_chars=800)  # type: ignore[arg-type]
+        assert summary is not None
+        payload = json.loads(summary)
+        values = {d["key"]: d["value"] for d in payload["dimensions"]}
+        assert values["body_shape"] == "梨形"
+        # skipped 维度不进素材（防幻觉第一道闸）
+        assert "style_impression" not in values
+        assert payload["rule_hits"][0]["rule_key"] == "pear_lower_dark"
+
+    async def test_latest_failed_falls_back_to_earlier_succeeded(
+        self, stub_list: dict[str, Any]
+    ) -> None:
+        stub_list["reports"] = [
+            _report(2, status="failed", result={}),
+            _report(1, status="succeeded", result={"diagnosis": _DIAGNOSIS}),
+        ]
+        summary = await latest_profile_summary(None, user_id=1, max_chars=800)  # type: ignore[arg-type]
+        assert summary is not None and "梨形" in summary
+
+    async def test_succeeded_without_diagnosis_is_skipped(self, stub_list: dict[str, Any]) -> None:
+        stub_list["reports"] = [_report(1, status="succeeded", result={"vision": {}})]
+        assert await latest_profile_summary(None, user_id=1, max_chars=800) is None  # type: ignore[arg-type]
+
+    async def test_budget_is_forwarded(self, stub_list: dict[str, Any]) -> None:
+        """max_chars 收紧时低优先级维度被裁、硬结论保留（复用 copy 的裁剪纪律）。"""
+        stub_list["reports"] = [_report(1, status="succeeded", result={"diagnosis": _DIAGNOSIS})]
+        summary = await latest_profile_summary(None, user_id=1, max_chars=60)  # type: ignore[arg-type]
+        assert summary is not None
+        assert len(summary) > 60  # 硬结论永不裁，载荷可超预算（copy.py 既定语义）
+        assert "梨形" in summary