feat(regulatory): 增加风险归并与核查报告导出

tests/test_regulatory_risk_assess.py

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+import pytest
+
+from review_agent.models import Conversation, FileSummaryBatch, RegulatoryIssue, RegulatoryReviewBatch
+from review_agent.regulatory_review.schemas import Finding
+from review_agent.regulatory_review.services.risk_assess import persist_findings
+
+
+pytestmark = pytest.mark.django_db
+
+
+def test_persist_findings_deduplicates_and_updates_risk_summary(django_user_model):
+    user = django_user_model.objects.create_user(username="owner", password="pass")
+    conversation = Conversation.objects.create(user=user, title="会话")
+    summary = FileSummaryBatch.objects.create(conversation=conversation, user=user, batch_no="FS-OK")
+    batch = RegulatoryReviewBatch.objects.create(
+        conversation=conversation,
+        user=user,
+        source_summary_batch=summary,
+        batch_no="RR-RISK",
+    )
+    finding = Finding(
+        rule_code="registration_test_report",
+        category="completeness",
+        severity="blocking",
+        title="缺少注册检验报告",
+        suggestion="请补充注册检验报告并复核。",
+        citations=[{"source": "法规.doc", "text": "注册检验报告"}],
+    )
+
+    issues = persist_findings(batch, [finding, finding])
+
+    batch.refresh_from_db()
+    assert len(issues) == 1
+    assert RegulatoryIssue.objects.count() == 1
+    assert batch.risk_summary["blocking"] == 1